2014年1月
The development of an estimation model for energy expenditure during water walking by acceleration and walking speed
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
- ,
- ,
- ,
- 巻
- 17
- 号
- 1
- 開始ページ
- 96
- 終了ページ
- 101
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.jsams.2013.02.004
- 出版者・発行元
- ELSEVIER SCI LTD
Objectives: The aim of this study was to develop an estimation equation for energy expenditure during water walking based on the acceleration and walking speed.
Design: Cross-validation study.
Methods: Fifty participants, males (n = 29, age: 27-73) and females (n = 21, age: 33-70) volunteered for this study. Based on their physical condition water walking was conducted at three self-selected walking speeds from a range of: 20, 25, 30, 35 and 40 m/min. Energy expenditure during each trial was calculated. During water walking, an accelerometer was attached to the occipital region and recorded three-dimensional accelerations at 100 Hz. A stopwatch was used for timing the participant's walking speed. The estimation model for energy expenditure included three components; (i) resting metabolic rate, (ii) internal energy expenditure for moving participants' body, and (iii) external energy expenditure due to water drag force.
Results: When comparing the measured and estimated energy expenditure with the acceleration data being the third component of the estimation model, high correlation coefficients were found in both male (r = 0.73) and female (r = 0.77) groups. When walking speeds were applied to the third component of the model, higher correlation coefficients were found (r = 0.82 in male and r = 0.88 in female). Good agreements of the developed estimation model were found in both methods, regardless of gender.
Conclusions: This study developed a valid estimation model for energy expenditure during water walking by using head acceleration and walking speed. (C) 2013 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
Design: Cross-validation study.
Methods: Fifty participants, males (n = 29, age: 27-73) and females (n = 21, age: 33-70) volunteered for this study. Based on their physical condition water walking was conducted at three self-selected walking speeds from a range of: 20, 25, 30, 35 and 40 m/min. Energy expenditure during each trial was calculated. During water walking, an accelerometer was attached to the occipital region and recorded three-dimensional accelerations at 100 Hz. A stopwatch was used for timing the participant's walking speed. The estimation model for energy expenditure included three components; (i) resting metabolic rate, (ii) internal energy expenditure for moving participants' body, and (iii) external energy expenditure due to water drag force.
Results: When comparing the measured and estimated energy expenditure with the acceleration data being the third component of the estimation model, high correlation coefficients were found in both male (r = 0.73) and female (r = 0.77) groups. When walking speeds were applied to the third component of the model, higher correlation coefficients were found (r = 0.82 in male and r = 0.88 in female). Good agreements of the developed estimation model were found in both methods, regardless of gender.
Conclusions: This study developed a valid estimation model for energy expenditure during water walking by using head acceleration and walking speed. (C) 2013 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.jsams.2013.02.004
- ISSN : 1440-2440
- eISSN : 1878-1861
- Web of Science ID : WOS:000330155100019