儿童与成人自由泳时能量消耗的对比分析。
Comparative analysis of the energy cost during front crawl swimming in children and adults.
作者信息
Ratel Sébastien, Poujade Bastien
机构信息
Laboratory of Exercise Biology (BAPS, EA 3533), University of Blaise Pascal, UFR STAPS, BP. 104, 63172 Aubière, France.
出版信息
Eur J Appl Physiol. 2009 Mar;105(4):543-9. doi: 10.1007/s00421-008-0933-1. Epub 2008 Nov 19.
The aim of this study was to investigate the effects of age and gender on the energy cost of front-crawl swimming (Cs). Thirty well-trained swimmers (10 boys, 5 girls, 10 men and 5 women) volunteered to perform a 200 m front-crawl test at a standardized velocity (V). Body length (BL), body mass (BM) and body surface area (BSA) were measured. Oxygen consumption (VO(2)) was measured using the Douglas bag method and the Cs was calculated as the ratio VO(2)/V. BM, BL, and BSA were identified as good predictors of Cs. By using allometric modeling, common body size exponents for BM, BL, and BSA were 0.40, 1.30, and 0.61, respectively. When scaling for BM, BM(0.40), BL, BL(1.30), BSA, and BSA(0.61), the Cs was not significantly different among the different swimmers groups. In conclusion, in well-trained swimmers, the size-scaled cost of swimming is not dependent on age and gender.
本研究的目的是调查年龄和性别对自由泳能量消耗（Cs）的影响。30名训练有素的游泳者（10名男孩、5名女孩、10名男性和5名女性）自愿以标准化速度（V）进行200米自由泳测试。测量了身体长度（BL）、体重（BM）和体表面积（BSA）。使用道格拉斯袋法测量耗氧量（VO₂），并将Cs计算为VO₂/V的比值。BM、BL和BSA被确定为Cs的良好预测指标。通过使用异速生长模型，BM、BL和BSA的常见身体尺寸指数分别为0.40、1.30和0.61。当按BM、BM(0.40)、BL、BL(1.30)、BSA和BSA(0.61)进行缩放时，不同游泳者组之间的Cs没有显著差异。总之，在训练有素的游泳者中，按尺寸缩放后的游泳成本不依赖于年龄和性别。
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