記述言語：英語   掲載種別：研究論文（学術雑誌）  

This paper focuses on oxygen consumption (VO2) estimation using 6-axis motion data (3-axis acceleration and 3-axis angular velocity) that are obtained from small motion sensors attached to people playing sports with different intensities. In order to achieve high estimation accuracy over a wide range of intensities of exercises, we apply neural network that is trained by experimental data consisting of the measured VO2 and motion sensing data of people with a wide range of intensities of exercises. We first investigate the gain brought by applying neural network by comparing its accuracy with an approach based on the linear regression model. Then, we analyze how much improvement the information on angular velocity can bring as compared with the estimation with the acceleration data alone. Our numerical results show that the employed framework exploiting neural network can improve the estimation accuracy in comparison to the linear regression model and the exploitation of information on the angular velocity plays an important role to improve the accuracy over higher intensities of exercises.

DOI： 10.1109/EMBC.2016.7591786

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

In this paper, we focus on oxygen consumption (VO2) estimation using 6-axis motion sensor (3-axis accelerometer and 3-axis gyroscope) for people playing sports with diverse intensities. The VO2 estimated with a small motion sensor can be used to calculate the energy expenditure, however, its accuracy depends on the intensities of various types of activities. In order to achieve high accuracy over a wide range of intensities, we employ an estimation framework that first classifies activities with a simple machine-learning based classification algorithm. We prepare different coefficients of linear regression model for different types of activities, which are determined with training data obtained by experiments. The best-suited model is used for each type of activity when VO2 is estimated. The accuracy of the employed framework depends on the trade-off between the degradation due to classification errors and improvement brought by applying separate, optimum model to VO2 estimation. Taking this trade-off into account, we evaluate the accuracy of the employed estimation framework by using a set of experimental data consisting of VO2 and motion data of people with a wide range of intensities of exercises, which were measured by a VO2 meter and motion sensor, respectively. Our numerical results show that the employed framework can improve the estimation accuracy in comparison to a reference method that uses a common regression model for all types of activities.

DOI： 10.1109/EMBC.2016.7591785

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG  

In the field of education such as elementary and middle schools, teachers want to take care of schoolchildren during physical trainings and after-school club activities. On the other hand, in the field of sports such as professional and national-level sports, physical or technical trainers want to manage the health, physical and physiological conditions of athletes during exercise trainings in the grounds. In this way, it is required to monitor vital signs for persons during exercises, however, there are several technical problems to be solved in its realization. In this paper, we present the importance and necessity of vital monitoring for persons during exercises, and to make it possible periodically, reliably and in real-time, we present the solutions which we have so far worked out and point out remaining technical challenges in terms of vital/physical sensing, wireless transmission and human interface.

DOI： 10.1587/transcom.2015MII0001

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掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：IEEE  

DOI： 10.1109/ISMICT.2016.7498878

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その他リンク： https://dblp.uni-trier.de/db/conf/ismict/ismict2016.html#HaraYKN16

掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：IEEE  

DOI： 10.1109/ISMICT.2016.7498895

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その他リンク： https://dblp.uni-trier.de/db/conf/ismict/ismict2016.html#MiyatakeNNYYKH16

記述言語：英語   掲載種別：研究論文（学術雑誌）  

Real-time monitoring of vital signs from persons during exercises is useful from the medical, healthcare and sports physiological points of view. In professional team sports, physical trainers or technical coaches want to manage the physical conditions of athletes during exercise training in the grounds, on the other hand, in elementary and junior high schools, teachers want to take care of schoolchildren during physical training. In realization of the vital signs monitoring, there are three technical problems to be solved. The first is how to accurately sense vital signs, the second is how to reliably transmit them by wireless, and the third is how to identify factors effective for disease screening, injury prevention, performance analysis and talent identification. In this paper, we present the necessity of real-time monitoring of vital signs from persons during exercises, introduce solutions for the problems which we have so far worked out, and point out remaining technical problems.

DOI： 10.1109/EMBC.2015.7319275

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Heart rate sensing can be used to not only understand exercise intensity but also detect life-critical condition during sports activities. To reduce stress during exercise and attach heart rate sensor easily, we developed a clip-type photoplethysmography (PPG)-based heart rate sensor. The sensor can be attached just by hanging it to the waist part of undershorts, and furthermore, it employs the motion artifact (MA) cancellation technique. However, due to its low contact pressure, sudden jumps and drops, which are called "outliers," are often observed in the sensed heart rate, so we also developed a simple outlier rejection technique. By an experiment using five male subjects (4 sets per subject), we confirmed the MA cancellation and outlier rejection capabilities.

DOI： 10.1109/EMBC.2015.7318784

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Heart rate (HR) sensing during exercise is essential for medical, healthcare and sport physiological purposes. Photo-Plethysmo-Graphy (PPG) is a simple and non-invasive technique for HR sensing, but it is highly sensitive to motion artifact. This paper proposes a cancellation technique of motion artifact in PPG-based HR sensing for a man during exercise. The canceller is equipped with two sensors; one is a normal PPG sensor where an LED/Photo-Detector (PD) contacts the skin to detect Blood Volume Pulse (BVP) (+motion artifact) and the other is a motion artifact sensor where an LED/PD does not contact the skin to detect only motion artifact. Experimental results show that the proposed technique, which is implemented in adaptive algorithms, can sense HR correctly by cancelling motion artifact induced by exercises such as running and jumping.

DOI： 10.1109/EMBC.2014.6944307

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：IEEE  

We have developed a real-time vital signs monitoring system for two years in 2012 and 2013. Just by putting a single vital sensor node to the back waist position of each player and placing four data collection nodes around a field, the system can monitor at a note PC heart rate (HR), energy expenditure (EE) and body temperature (BT) for all players during a football game in real-time, periodically and reliably. The system is based on novel vital sensing technique and wireless data transmission technique. This paper introduces the two techniques in the system, presents some problems encountered in the system development and discusses solutions for them.

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：IEEE  

Real-time vital data monitoring for athletes during training and game is essential for planning effective training menus and avoiding injuries and diseases. Especially for team sports such as footfall and rugby, how to reliably collect vital data from many players spread in a large field is a key issue. In our previous work Ill, we developed a real-time vital data collection system in which a wireless sensor node attached at the waist position of each player broadcasts packets to data collection nodes placed around a football field. Our field experiments showed that, (1) for the 920 MHz band, the packet success rate can be almost 1.0 when using 3 or 4 data collection nodes, whereas for the 2.4 GHz band, the packet success rate is less than 0.85 even when using 6 data collection nodes, and (2) the suitable antenna height of the data collection node is 2 meters.
In this paper, we discuss a suitable packet forwarding method from the data collection nodes to a sink node at a technical trainer or a coach. By field experiments, we compare the packet error rate between a single-hop packet forwarding in the 920 MHz band and a multi-hop packet forwarding in the 2.4 GHz band. Furthermore, we show some interesting events on the packet error rates for different player positions such as forward, midfielder, defender and goalkeeper.

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掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：IEEE  

DOI： 10.1109/HealthCom.2013.6720710

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その他リンク： https://dblp.uni-trier.de/db/conf/healthcom/healthcom2013.html#HaraTKNKWIAO13

掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：IEEE  

DOI： 10.1109/SMC.2013.348

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その他リンク： https://dblp.uni-trier.de/db/conf/smc/smc2013.html#FukuyamaNK13

記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：SPRINGER  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Central administration of γ-amino butyric acid (GABA) induces lower body temperature in animals in hot ambient air. However, it is still unknown whether oral GABA administration affects temperature regulation at rest in a hot environment in humans. Therefore, in the present study, we specifically hypothesized that systemic administration of GABA in humans would induce hypothermia in a hot environment and that this response would be observed in association with decreased heat production. METHODS: Eight male participants drank a 200-ml sports drink with 1 g of GABA (trial G) or without GABA (trial C), then rested for 30 minutes in a sitting position in a hot environment (ambient air temperature 33°C, relative humidity 50%). RESULTS: We found that changes in esophageal temperature from before drinking the sports drink were lower in trial G than in trial C (-0.046 ± 0.079°C vs 0.001 ± 0.063°C; P < 0.05), with lower heat production calculated by oxygen consumption (41 ± 5 W/m2 vs 47 ± 8 W/m2; P < 0.05). CONCLUSIONS: In this study, we have demonstrated that a single oral administration of GABA induced a larger decrease in body core temperature compared to a control condition during rest in a hot environment and that this response was concomitant with a decrease in total heat production.

DOI： 10.1186/1880-6805-31-3

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Background: Central administration of γ-amino butyric acid (GABA) induces lower body temperature in animals in hot ambient air. However, it is still unknown whether oral GABA administration affects temperature regulation at rest in a hot environment in humans. Therefore, in the present study, we specifically hypothesized that systemic administration of GABA in humans would induce hypothermia in a hot environment and that this response would be observed in association with decreased heat production. Methods: Eight male participants drank a 200-ml sports drink with 1 g of GABA (trial G) or without GABA (trial C), then rested for 30 minutes in a sitting position in a hot environment (ambient air temperature 33°C, relative humidity 50%). Results: We found that changes in esophageal temperature from before drinking the sports drink were lower in trial G than in trial C (-0.046 ± 0.079°C vs 0.001 ± 0.063°C
P &lt
0.05), with lower heat production calculated by oxygen consumption (41 ± 5 W/m 2 vs 47 ± 8 W/m 2
P &lt
0.05). Conclusions: In this study, we have demonstrated that a single oral administration of GABA induced a larger decrease in body core temperature compared to a control condition during rest in a hot environment and that this response was concomitant with a decrease in total heat production. © 2012 Miyazawa et al.

DOI： 10.1186/1880-6805-31-3

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: It is known that external cooling of body regions involved in exercise, prior to exercise, decreases anaerobic performance. However, there have been no studies reporting the effects of whole body skin surface cooling before exercise on maximal anaerobic capacity. In order to clarify the effects, we compared power output during the Wingate anaerobic test between preconditioning by exposure to temperature 10 degrees C and 25 degrees C. METHODS: Eight healthy males carried out the Wingate test for 30 seconds, after pre-conditioning for 60 minutes using a perfusion suit with water at a temperature of 10 degrees C or 25 degrees C. We evaluated the peak power (PP) and peak power slope (PS) of the power output. RESULTS: Mean skin temperature (T(sk)) at 60 minutes of pre-conditioning in the 10 degrees C trial was significantly lower than in the 25 degrees C trial (p < 0.05). PP and also PS were significantly lower in the 10 degrees C trial than in the 25 degrees C trial. Changes (Δ) in PP between the 10 degrees C trial and the 25 degrees C trial were strongly correlated with ΔT(sk) and Δ in thigh and leg skin temperature (ΔT(thigh) and ΔT(leg), respectively), whereas ΔPS was strongly correlated with ΔT(sk), but not with ΔT(thigh) and ΔT(leg). CONCLUSIONS: Whole body skin surface cooling prior to exercise restricts anaerobic capacity, especially in the initial phase of exercise.

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspehss.62.229_3

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Centric administration of gamma-aminobutyric acid (GABA) has been implicated to affect temperature regulation in animals during rest or under anesthesia. However, there are few reports concerning the effects of the oral administration of GABA on temperature regulation in humans during rest and exercise. In order to clarify the effects and underlying mechanisms, we measured several parameters related to temperature regulation of humans during rest and exercise at high ambient temperature (35 degrees C). METHODS: On two occasions, eight endurance-trained men rested for 20 min and cycled at 65% VO2peak for 30 min. In control trial (trial-C), subjects drank the sample which was a sports drink of 200 mL (placebo) before the rest period. In another trial (trial-G), subjects drank the sample which was a sports drink containing 1000 mg of GABA (GABA drink) before the rest period. RESULTS: In trial-G, the plasma GABA concentrations were maintained higher than those in trial-C during the experiment. An increase of esophageal temperature during rest and exercise was inhibited in trial-G. Sweat rate, and plasma catecholamine concentrations during exercise were inhibited in trial-G. CONCLUSIONS: Esophageal temperature inhibition is suggested to be induced by the suppression of cold-sensitive neurons during rest, and the inhibition of plasma catecholamine concentrations caused by the GABA-induced attenuation of the sympathetic nervous system during exercise.

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記述言語：英語   出版者・発行元：PHYSIOLOGICAL SOCIETY OF JAPAN  

It has been reported that maximal oxygen uptake (<i>V</i>O_{2 max}) is linearly correlated with blood volume (BV) in young people and that there is a reduction in <i>V</i>O_{2 max} with aging. To examine the involvement of BV in the reduction of <i>V</i>O_{2 max}, we used an incremental cycle ergometer protocol in a semirecumbent position to determine the relationship between peak oxygen uptake (<i>V</i>O_{2 peak}) and BV in older subjects (69.1 ± 1.0 years; <i>n</i> = 22), then compared that relationship with that in young subjects (22.3 ± 0.5 years; <i>n</i> = 31). In the present study, <i>V</i>O_{2 peak} and BV were significantly lower in the older subjects, compared with those in the young subjects. A linear correlation was demonstrated between the <i>V</i>O_{2 peak} and BV in both the older (<i>r</i> = 0.705; <i>p</i> < 0.001) and the young (<i>r</i> = 0.681; <i>p</i> < 0.001) subjects within the groups. However, an analysis of covariance with BV as a covariate revealed that <i>V</i>O_{2 peak} at a given BV was smaller in the older subjects than in the young subjects (<i>p</i> < 0.001), i.e., graphically, the regression line determined for the older subjects showed a downward shift. The decreased peak heart rate as a result of aging (153 ± 3 beats/min in the older vs. 189 ± 2 beats/min in the young subjects) contributed partly to this downward shift. These results suggest that the BV is an important determinant factor for <i>V</i>O_{2 peak}, especially within an age group, and that the age-associated decline of <i>V</i>O_{2 peak} is also, to a relatively larger degree, because of factors other than BV and heart rate.<br>

DOI： 10.2170/jjphysiol.51.607

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掲載種別：研究論文（学術雑誌）  

To investigate the relationship between right atrial pressure (RAP) and atrial natriuretic peptide (ANP) release during prolonged exercise in a hot environment (30°C, 20% relative humidity), we studied with a Swan-Ganz catheter five male volunteers exercising on a cycle ergometer at 60% of peak aerobic power for 50 min. The ANP level increased from 14 ± 3 (SE) to 69 ± 10 pg/ml (P < 0.001) during the first 10 min of exercise as RAP rose from 4.3 ± 0.8 to 6.9 ± 1.1 mmHg (P < 0.001). The 10-min ANP level was significantly correlated with RAP (r = 0.88, P < 0.05) but not with heart rate, pulmonary arterial blood temperature, plasma norepinephrine, or plasma epinephrine. The 10-min RAP value was inversely correlated with blood volume (r = -0.98, P < 0.01) and also with stroke volume (r = -0.96, P < 0.01). In the next 20 min of exercise, ANP continued to increase to 101 ± 12 pg/ml (P < 0.02 vs. 10 min) and remained at this level until 50 min of exercise, whereas RAP decreased and reached a level not significantly different from baseline at 50 min (5.7 ± 1.0 mmHg; P < 0.01 vs. 10 min). This dissociation of ANP and RAP may have been related to the significant increases from the 10-min values of heart rate, blood temperature, norepinephrine (all P < 0.01), and epinephrine (P < 0.02) during the same period. These results suggest that ANP release is primarily controlled by atrial distension at the onset of exercise but that other stimulators may be involved thereafter. The lower ANP release in subjects with a higher blood volume at 10 min may have been caused by an attenuated increase in RAP due to a larger stroke volume.

DOI： 10.1152/jappl.1994.76.5.1882

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspeconf.40A.0_329

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspeconf.39A.0_295

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspeconf.38A.0_302

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspeconf.38B.0_719

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspeconf.37B.0_641

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspeconf.37B.0_883

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspeconf.37B.0_644

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記述言語：日本語   出版者・発行元：社団法人日本体育学会  

DOI： 10.20693/jspeconf.34.0_408

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記述言語：日本語   出版者・発行元：関西大学先端科学技術推進機構  

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担当区分：最終著者   記述言語：日本語   出版者・発行元：(公社)日本生体医工学会  

心拍センサの製作には緑色光(波長520nm)を用いた。LED/PDとして用いたイメージセンサでは、周波数20Hzでサンプリングされ、12ビットの分解能を持ったデジタル信号がPD出力として直接得られた。成人男性10名を対象とした。実験では心拍センサを背中右腰部、ホルター心電計を胸部に装着して行った。最終的に、W=13mmとH=6.5mmに設定した心拍センサを用いて、fs=10Hzとし、K=20/λ=0.97に設定したRLSアルゴリズムをMA除去に使用し、さらに、δu=35/δd=25に設定した異常値削減法を適用することで、歩行、走行および跳躍に対して10bpm以下のRMSEが達成できることが判明した。歩行、走行と跳躍に対し、MA除去を用いない場合に比較して、心拍数の推定誤差を最大で83%削減できた。

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記述言語：日本語   出版者・発行元：(一社)ITヘルスケア学会  

近年、運動選手のバイタルデータを用いて運動中の身体状態を把握する研究が盛んである。我々は、歩行運動に加えて、速度の速い走行運動においても、加速度情報から身体のエネルギー消費量を正確に推算することを目指している。走行時は、歩行時と比較して動作が異なり、従来の推算法では誤差が大きいため、新しい推算法が必要とされていた。本稿では、加速度の大きさの多次モーメントを用いて酸素摂取量を推算する方法を提案した。運動選手に加速度センサと呼気ガス分析装置のマスクを装着し、トレッドミルを用いて運動選手を対象として検証実験を行った。従来方式と提案方式の2方式を評価するため、測定した共通の3軸加速度を用いて酸素摂取量を推算し、同時に測定した酸素摂取量の実測値とのRMSEをそれぞれ求めた。2方式をRMSEにより評価し、提案方式において全被験者で共通に用いることができる推算法を求めた。(著者抄録)

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記述言語：日本語   出版者・発行元：(一社)ITヘルスケア学会  

近年、コーチや監督などの指導者は、運動選手のバイタルデータを用い、スポーツ健康科学に基づいて練習メニューの作成をする傾向にある。我々は無線通信を用いて、チームで行うスポーツ中に選手全員のバイタルデータをリアルタイムに収集することを目指している。チームスポーツとしてサッカーを選択し、フィールド実験により競技中の無線伝送におけるパケットロス率の測定を行った。また、スポーツ健康科学の専門家、サッカー監督、フィジカルコーチなどの指導者からの意見をもとにシステムユーザインターフェースを考案した。本稿では、フィールド実験による測定結果と考案したシステムユーザインターフェースについて報告する。(著者抄録)

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記述言語：日本語   出版者・発行元：(一社)ITヘルスケア学会  

近年、運動選手のバイタルデータを用いてスポーツ健康科学に基づいた練習メニューの改善の検討が活発である。我々は無線通信を用いてチームで行うスポーツ競技中に選手全員のバイタルデータを監督のもとにリアルタイムに収集することを目指している。無線通信では他の選手による通信路の遮断(ブロッキング)が頻繁に発生し、この対策が必要とされる。我々はブロッキングの影響を軽減し、通信品質を向上させるためにフィールドの周囲に中継ノードを配置し、ワンホップダイバーシチ法を用いてバイタルデータを収集するシステムを検討した。22人のサッカー選手に送信機を装着し、サイズの異なるサッカーフィールドで2回のフィールド実験を実施した。6台の中継ノードを2パターンで配置した場合の測定データからパケットロス率特性を求め、バイタルデータ収集に適した中継ノード配置とノード数について検討した。(著者抄録)

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記述言語：日本語   出版者・発行元：(一社)ITヘルスケア学会  

スポーツ分野において、運動選手のバイタル信号をモニタリングすることによって、指導者が選手の体調を見て指示を出すようなシステムが求められている。これまで、心拍数取得のための腰部における心電波形のセンシングや、複数選手の無線伝送システムが提案されている。バイタル信号のセンシング及びバイタル信号の信号処理、無線伝送のために、選手に装着するセンサが必要となり、そのマイクロプロセッサを選定しなければならない。センサでは、腰部での心拍数導出処理を制限時間内に終わらせなければならず、処理の速いマイクロプロセッサが必要である。一方、マイクロプロセッサの消費エネルギーを小さくすることでセンサの小型化と軽量化を図る必要もある。そこで、本稿では腰部装着型心拍数センサの信号処理機能に適したマイクロプロセッサを三つ候補として挙げ、候補とした三つのマイクロプロセッサに心拍数導出処理を実装し、心拍数導出処理におけるFIRフィルタの次数を変化させながら計算時間を実測した。その結果、心拍数導出処理のFIRフィルタにおける浮動小数点を固定小数点に変化させても心拍数に影響を与えないことを示し、エネルギー効率の観点から最も適したプロセッサを選定した。(著者抄録)

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記述言語：日本語   出版者・発行元：大阪市立大学  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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その他リンク： http://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_KJ00008819359

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：公益社団法人 日本冷凍空調学会  

The simple and noninvasive measuring methods of bioinstrumentation in humans is required for optimization of air conditioning and management of thermal environments, taking into consideration the individual specificity of the human body as well as the stress conditions affecting each. Changes in human blood circulation were induced with environmental factors such as heat, cold, exercise, mental stress, and so on. In this study, the physiological responses of human body to heat stress and exercise were investigated in the initial phase of the developmental research. We measured the body core and skin temperatures, skin blood flow, and pulse wave as the indices of the adaptation of the cardiovascular system. A laser Doppler skin blood flowmetry using an optical-sensor with a small portable data logger was employed for the measurement. These results reveal the heat-stress and exercise-induced circulatory responses, which are under the control of the sympathetic nerve system. Furthermore, it was suggested that the activity of the sympathetic nervous system could be evaluated from the signals of the pulse wave included in the signals derived from skin blood flow by means of heart rate variability assessments and detecting peak heights of velocity-plethysmogram.

DOI： 10.11322/tjsrae.26.121

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記述言語：日本語   出版者・発行元：大阪市立大学都市健康・スポーツ研究センター  

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2009&ichushi_jid=J05457&link_issn=&doc_id=20091130260003&doc_link_id=https%3A%2F%2Fdlisv03.media.osaka-cu.ac.jp%2Fil%2Fmeta_pub%2FG0000438repository_KJ00005680279&url=https%3A%2F%2Fdlisv03.media.osaka-cu.ac.jp%2Fil%2Fmeta_pub%2FG0000438repository_KJ00005680279&type=%91%E5%8D%E3%8Es%97%A7%91%E5%8Aw%81F%91%E5%8D%E3%8Es%97%A7%91%E5%8Aw%8Aw%8Fp%8B%40%8A%D6%83%8A%83%7C%83W%83g%83%8A&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80056_3.gif

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：英語   出版者・発行元：大阪市立大学  

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記述言語：日本語  

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記述言語：日本語   出版者・発行元：日本生気象学会  

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2008&ichushi_jid=J01129&link_issn=&doc_id=20080606070003&doc_link_id=%2Fdf8biome%2F2008%2F004501%2F006%2F0034-0042%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fdf8biome%2F2008%2F004501%2F006%2F0034-0042%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：日本語   出版者・発行元：聖トマス大学  

In the 2006 FIFA World Cup held in Germany, Japan was defeated in the league stages with a scorecard of two defeats and one draw. Due to the measures adopted by the JFA (Japan Football Association) and the introduction of various training programs from countries that excel in the sport, the competitive level of our football team was improved dramatically. However, the leading countries had progressed even further. JFA's Technical Report includes points such as the action of "move if passed" posing a major challenge to the Japanese team and attributes this to a lack of practice in the basics and lack of momentum. In such a scenario, the present study attempts to identify the performance factors of the Japanese team and other teams that participated in the 2006 FIFA World Cup in Germany. From the new perspective of "kick motion analysis" (frequency of inside kicks, i.e., "dynamic kick" and "stationary kick") , the study will examine the team performances in the competition based on data from 15 matches.

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2008&ichushi_jid=J00797&link_issn=&doc_id=20080228290023&doc_link_id=10.7600%2Fjspfsm.57.34&url=https%3A%2F%2Fdoi.org%2F10.7600%2Fjspfsm.57.34&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

記述言語：英語   出版者・発行元：Japan Society of Physiological Anthropology  

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その他リンク： http://search.jamas.or.jp/link/ui/2008276829

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(公社)日本栄養・食糧学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(公社)日本栄養・食糧学会  

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記述言語：日本語   出版者・発行元：関西臨床スポーツ医・科学研究会  

健常成人男性9名を対象に,赤外線照射による放射熱が安静・運動時のエネルギー代謝反応と体温調節能および運動遂行時間に及ぼす影響について検討した.実験は人工気候室内で行い,室内環境条件は夏季に大阪府下のグラウンドで実測したデータをもとに室温33℃,相対湿度40%,黒球温度40℃に設定した.赤外線照射は対象の後方約110cmに設置したヒータ(ピーク波長3.5μm)により対象の背面全域に連続照射した.運動は自転車エルゴメータを用いて60% VO2 peak(125.1±24.4W)強度,60rpmで疲労困憊に至るまで実施した.検討の結果,放射熱はエネルギー代謝反応には影響しないが体温調節能に失調をもたらし運動遂行能を低下させることが示唆された

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記述言語：日本語   出版者・発行元：一般社団法人 日本機械学会  

The greatly changes of the human circulation dynamics induced by heat, cold, exercise and mental stress or postural change, etc. as environmental factors were known well. To determine the human adaptability by cardiovascular system measurement using an optical-sensor, a small and portable data logger, in which high-speed sampling measurement by 2.56kHz throughout 14 hours continuously was possible, was developed in this study. In addition, we measured the both of skin blood flow and pulse wave as the index of the adaptation of circulatory system to the heat stress and exercise. These results suggested that the sympathetic nerve system as the human circulatory response was able to be evaluated from the signals of the pulse wave included in the signal of skin blood flow.

DOI： 10.1299/jsmemecjo.2006.7.0_133

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記述言語：英語   出版者・発行元：Japan Society of Physiological Anthropology  

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その他リンク： http://search.jamas.or.jp/link/ui/2007102417

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語  

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記述言語：日本語   出版者・発行元：日本生気象学会  

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記述言語：日本語   出版者・発行元：人間-生活環境系会議  

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記述言語：英語   出版者・発行元：人間-生活環境系会議  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本臨床麻酔学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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その他リンク： http://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_KJ00000268699

記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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その他リンク： http://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_KJ00004387048

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記述言語：日本語   出版者・発行元：杏林書院  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：英語   出版者・発行元：Japan Society of Exercise and Sports Physiology  

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その他リンク： https://projects.repo.nii.ac.jp/?action=repository_uri&item_id=192719

記述言語：日本語   出版者・発行元：大阪市立大学  

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その他リンク： http://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_KJ00004387036

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記述言語：英語   出版者・発行元：CENTER ACADEMIC PUBL JAPAN  

To clarify whether an increase in urinary sodium (Na) excretion during cold-air exposure is attenuated in trained athletes, we analyzed the urinary and hormonal responses to cold-air exposure at 15 degrees C in trained (TR, n=9) and untrained men (UT, n=9), During 15 degrees C exposure in the UT group, the urinary Na excretion (UNaV), fractional excretion of Na and urinary Na to K ratio (U-Na/K) increased significantly (p&lt;0.01-0.05), but there were no variations in creatinine clearance or the filtered Na load. In the TR group, however, no significant changes were demonstrated in these parameters. The amount of increase in plasma noradrenaline and of decrease in plasma volume were greater, and the ADH and adrenaline responses were smaller in the TR group than those found in the UT group during 15 degrees C air exposure. A significant positive correlation was demonstrated between the increase of UNaV and both the relative changes of U-Na/K and mean blood pressure. These results indicated that natriuresis during cold-air exposure was induced by the decrease in tubular reabsorption of Na, and that natriuresis was attenuated in trained athletes.

DOI： 10.2170/jjphysiol.49.193

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PubMed

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記述言語：日本語   出版者・発行元：(一社)日本生理学会  

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記述言語：日本語   出版者・発行元：大阪市立大学  

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その他リンク： http://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_KJ00004387027

記述言語：日本語   出版者・発行元：大阪市立大学  

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その他リンク： http://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_KJ00004387023

記述言語：英語   出版者・発行元：Japan Society of Exercise and Sports Physiology  

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その他リンク： https://projects.repo.nii.ac.jp/?action=repository_uri&item_id=192446

記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：英語   出版者・発行元：CENTER ACADEMIC PUBL JAPAN  

We studied the difference of thermoregulatory responses between trained male athletes (TR, n = 9) and untrained men (UT, n = 7) during 60 min of cold exposure (15 degrees C) without shivering, and examined the effects of physical fitness and body fat on these responses. Mean skin temperature ((T) over bar(sk)), esophageal temperature (T-es), and skin conductance (K-b) were similar between TR and UT, and heat production ((M) over bar) for TR increased significantly during exposure at 15 degrees C. The (M) over bar at 15 degrees C correlated positively with maximal oxygen uptake and negatively with body fat (%BF), but not with T-es. The K-b correlated negatively with T-es and positively with (T) over bar(sk).The %BF also correlated negatively with K-b and (T) over bar(sk) during exposure at 15 degrees C, and the slope of %BF vs. (T) over bar(sk) relationship was significantly steeper in TR than in UT. These results suggest that (1) body temperature is maintained by the reduction of skin conductance, and (2) heat insulation independent of body fat is enhanced in trained athletes during cold exposure without shivering.

DOI： 10.2170/jjphysiol.48.143

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記述言語：英語   出版者・発行元：CENTER ACADEMIC PUBL JAPAN  

Thermoregulatory response during exercise was studied in rats with three hydration states: euhydration, hypohydration (-18% plasma volume by thermal dehydration), and hyperhydration (+24% plasma volume by 5% bovine serum albumin solution infusion). Rats exercised (12.5 m.min(-1)) for 30 min at an ambient temperature of 25 degrees C. Abdominal temperature (T-ab) and heart rate were continuously recorded by using a surgically implanted transmitter and telemetry system, and the tail skin temperature (T-ts) was measured as an index of peripheral vasomotor tone, In the euhydration group, T-ts showed an increase when T-ab reached 37.6 degrees C; an increase of T-ts was observed at 37.9 degrees C of T-ab in the hypohydration group and at 37.4 degrees C in the hyperhydration group. The slope of the T-ts-T-ab relationship was steeper in the hyperhydration group and less steep in the hypohydration group than in the euhydration group. These results indicate that hypohydration leads to an upward shift in the body temperature threshold for tail vasodilation and an increase in T-ab during exercise. Hyperhydration, however, leads to a downward shift of the threshold and the maintenance of a lower T-ab An elevation of the threshold T-ab for vasodilation was observed when plasma volume was reduced by more than 20%, and a decrease was observed when plasma volume increased more than 15%.

DOI： 10.2170/jjphysiol.48.57

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：英語  

To clarify the relationship between aerobic power (V̇O2(max)), blood volume (BV), and thermoregulatory responses to exercise-heat stress, we analyzed the cross-sectional relationship between the resting BV, plasma volume (PV), erythrocyte volume (EV), V̇O(2max), forearm blood flow (FBF), and sweating responses during exercise in a hot environment (31 °C, 50% relative humidity). Twelve college-aged male subjects with a mean maximal oxygen uptake of 48 (range 42-59) mL · kg-1 · min-1, a mean PV of 54 (range 42-72) mL · kg-1, a mean EV of 31 (range 23-43) mL · kg-1, and a mean BV of 85 (range 67-115) mL · kg-1 (measured by the Evans Blue dye dilution method) performed three sessions of 20-min cycle exercise at two levels of intensity (40% and 60% V̇O(2max). The BV, PV, and EV correlated positively with peak FBF (r = 0.596-0.711, P &lt
0.05), the increase of FBF in response to a unit rise in esophageal temperature (Tes
peak ΔFBF/peak ΔTes) (r = 0.592-0.656, P &lt
0.05) and with total sweat loss (TSL) (r = 0.599-0.634, P &lt
0.05) during the exercise. The V̇O(2max) correlated with TSL during exercise at 40% V̇O(2max) (r = 0.578, P &lt
0.05), but not with peak FBF and peak ΔFBF/peak ΔTes. The V̇O(2max) per lean body mass also showed a significant positive correlation with BV (r = 0.769, P &lt
0.01), PV (r = 0.706, P &lt
0.05), and with EV (r = 0.841, P &lt
0.001). The peak ΔFBF/peak ΔTes was correlated positively with peak FBF (r = 0.5970.830, P &lt
0.05-0.01) and negatively with peak Tes (r = 0.641-0.769, P &lt
0.05-0.01) during the exercise at the two levels. However, the chest sweat rate (CSR), TSL, and the increase of CSR in response to a unit rise in Tes (peak ΔCSR/peak ΔTes) showed no correlation with peak Tes during the exercise at the two levels. These findings suggest that 1) heat dissipation responses during exercise were related more to blood volume than aerobic power and 2) skin blood flow was related more to body temperature than sweating responses during exercise under mild heat stress.

DOI： 10.1097/00005768-199707000-00005

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記述言語：日本語   出版者・発行元：大阪市立大学  

1. 緒言 : 高温環境下におけるスポーツ活動では、運動強度や発汗による血漿量の減少が静脈環流量の維持を困難にし、循環、体温調節能に影響を及ぼす。そしてさらに脱水が進むと運動継続が困難になり、暑熱障害すなわち熱中症の発生の危険率が高くなる。したがって、運動時の水分・塩分補給は体液損失を補給し暑熱障害予防にも重要である。……

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その他リンク： https://dlisv03.media.osaka-cu.ac.jp/il/meta_pub/G0000438repository_KJ00000268684

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：FEDERATION AMER SOC EXP BIOL  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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記述言語：日本語  

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記述言語：英語   出版者・発行元：SPRINGER VERLAG  

We measured the aerobic capacity, sweat rate and fluid intake of trained athletes during outdoor exercise and examined the relationship between aerobic capacity and thermoregulatory responses at high ambient temperatures. The maximal aerobic capacity (VO2max) Of the subjects, nine male baseball players of college age, was determined by maximal exercise tests on a cycle ergometer. The subjects practised baseball regularly without drinking fluids from 1330 to 1530 hours. After 30 min rest, they played a baseball game with free access to a sports drink at 15 degrees C from 1600 to 1830 hours. At a mean ambient temperature of 36.7 (SEM 0.2)degrees C, the mean percentage of body mass loss (Delta m(b)) and increase of oral temperature (Delta T-o) from 1330 to 1530 hours was 3.47 (SEM 0.12)% and 0.81 (SEM 0.14)degrees C, respectively. The sweat loss from 1330 to 1830 hours was 56.53 (SEM 1.56)ml . kg(-1) of body mass (m(b)) while the mean fluid consumption was 44.78 (SEM 2.39)ml . kg(-1) of m(b), With recovery of 76.08 (SEM 2.81)% of sweat loss. The VO2max was significantly inversely correlated with Delta m(b), fluid intake and rehydration amount, but showed no correlation with Delta T-o. These results would suggest that at a given exercise intensity in subjects with a higher aerobic capacity body temperature is maintained with a lower sweating rate than that in subjects with a lower aerobic capacity.

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記述言語：英語   出版者・発行元：AMER PHYSIOLOGICAL SOC  

To assess the relationship between atrial natriuretic peptide (ANP) and the reduction in plasma volume (PV) during exercise, we measured changes in PV and ANP in seven male volunteers during treadmill exercise in air (AE) and with water immersion (WE) together with time control studies of rest in air and in water. Blood samples were collected from a catheter in the antecubital vein at exercise intensities of 32, 49, 65, and 78% of peak oxygen consumption (Vo(2)). Plasma ANP in AE increased significantly from the resting value [15 +/- 1 (SE) pg/ml] only at 78% of peak Vo(2) (29 +/- 5 pg/ml), whereas ANP in WE increased significantly at exercise levels of &gt;49% of peak Vo(2) and reached 68 +/- 9 pg/ml at 78% of peak Vo(2). Although PV in AE and WE decreased significantly with Vo(2) of &gt; 49% of peak Vo(2) (P &lt; 0.01), the decrease from the resting value in WE was significantly greater than that in AE of &gt;65% of peak Vo(2) (P &lt; 0.01) and the decreases at 78% of peak Vo(2) were -9.7 +/- 0.8 and -6.1 +/- 1.7%, respectively. The difference in the decrease in PV between AE and WE at corresponding Vo(2) correlated strongly with that in the increase in ANP (r = -0.97; P &lt; 0.01). These results are consistent with the hypothesis that ANP may be involved in the fluid shift from the intra- to extravascular space during exercise.

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記述言語：日本語   出版者・発行元：一般社団法人 日本体育学会  

DOI： 10.20693/jspeconf.46.0_292

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：英語   出版者・発行元：SPRINGER VERLAG  

Right atrial pressure (RAP) at rest is known to be reduced by an increase in skin blood flow (SkBF) in a hot environment. However, there is no clear evidence that this is so during exercise. To clarify the effect of the increase in SkBF on RAP during exercise, we measured forearm blood flow (FBF) (as an index of SkBF) and RAP continuously using a Swan-Ganz catheter in five male volunteers exercising on a cycle ergometer at 60% of peak aerobic power for 50 min in a hot environment (30 degrees C, relative humidity 20%). Cardiac output increased from 5.5 +/- 0.2 l/min at rest to 17.9 +/- 1.2 l/min (mean +/- SE, P &lt; 0.01) in the first 10 min of exercise and then remained steady until the end of exercise. FBF did not change significantly during the first 5 min, but then increased from 2.7 +/- 0.5 ml/100 ml per min at rest to 10.8 +/- 1.7 ml/100 ml per min (P &lt; 0.001) by 25 min as pulmonary arterial blood temperature (T-b) rose from 37.0 +/- 0.1 degrees C to 38.1 +/- 0.1 degrees C (P &lt; 0.001). FBF then reached a plateau, despite a continuing increase in T,. RAP increased significantly from 4.3 +/- 0.8 to 7.6 +/- 1.2 mm Hg (P &lt; 0.001) during the first 5 min of exercise and then gradually declined to 6.1 +/- 1.0 mm Hg by 25 min (P &lt; 0.001 vs. 5 min) and further to 5.7 +/- 1.0 mm Hg by 50 min, a value not significantly higher than at rest. This reduction in RAP during exercise was significantly correlated with the increase in FBF (r = -0.97, P &lt; 0.001) with a regression equation of RAP = -0.25XFBF + 8.8. These results suggest that the decrease in RAP after 5 min exercise was caused by an increase in SkBF during exercise in a hot environment.

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記述言語：日本語   出版者・発行元：日本生気象学会  

DOI： 10.11227/seikisho1966.31.113

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J-GLOBAL

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：英語   出版者・発行元：PERGAMON-ELSEVIER SCIENCE LTD  

The relationship between the level of dehydration (3%, 6%, and 8% body weight) and the preference for water and saline in the rehydration were assessed in rats for 15 h. At the 6% and 8% dehydration levels, rats provided with tap water and 0.9% NaCl solution simultaneously consumed more water than NaCl solution (calculated Na concentration was about 57 mEq/1) within 3 h and then consumed more NaCl solution than water (about 116 mEq/1). The shift of the Na concentration of fluid occurred when about 107% of lost cations and 82% of lost fluid were regained. Urine output and urinary Na output were about 14% of the ingested fluid during the initial 4 h; after that, the output was in amounts almost equal to the ingestion. However, the 3% dehydrated rats consumed almost equal amount of tap water and NaCl solution (about 68 mEq/1) throughout the 15 h. The result indicates that at more than 3% dehydration level, rats initially choose hypotonic NaCl solution, and the volume loss of body fluid is then regained by the consumption of almost isotonic Na solution.

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記述言語：日本語   出版者・発行元：一般社団法人 日本体育学会  

DOI： 10.20693/jspeconf.44A.0_343

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記述言語：日本語   出版者・発行元：一般社団法人 日本体育学会  

DOI： 10.20693/jspeconf.44A.0_363

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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J-GLOBAL

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J-GLOBAL

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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記述言語：日本語   出版者・発行元：(一社)日本体力医学会  

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J-GLOBAL

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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J-GLOBAL

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J-GLOBAL

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J-GLOBAL

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J-GLOBAL

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J-GLOBAL

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記述言語：日本語   出版者・発行元：大阪市立大学  

CiNii Books

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J-GLOBAL

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記述言語：日本語   出版者・発行元：大阪市立大学  

CiNii Books

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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J-GLOBAL

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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記述言語：日本語   出版者・発行元：大阪市立大学  

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記述言語：日本語   出版者・発行元：日本体育大学  

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その他リンク： http://id.nii.ac.jp/1444/00000263/

記述言語：日本語   出版者・発行元：日本体力医学会  

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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記述言語：日本語   出版者・発行元：日本体力医学会  

CiNii Books

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