The development of an estimation model for energy expenditure during water walking by acceleration and walking speed
Deutscher übersetzter Titel: | Die Entwicklung eines Schätzmodells für den Energieverbrauch beim Aqua-Walking anhand von Beschleunigung und Gehgeschwindigkeit |
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Autor: | Kaneda, Koichi; Ohgi, Yuji; Tanaka, Chiaki; Burkett, Brendan |
Erschienen in: | Journal of science and medicine in sport |
Veröffentlicht: | 17 (2014), 1, S. 96-101, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1440-2440, 1878-1861 |
DOI: | 10.1016/j.jsams.2013.02.004 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201403001975 |
Quelle: | BISp |
Abstract
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 40m/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 100Hz. 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. Verf.-Referat