Effect of Wearing Clothes on Oxygen Uptake and Ratings of Perceived Exertion while Swimming

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For a comparative study between swimming in swimwear(control-sw)and swimming in clothes(clothes-sw), oxygen uptake(V^^・O_2)and ratings of perceived exertion(RPE)were measured. The subjects were six male members of a university swimming team. Three swimming strokes-the breaststroke, the front crawl stroke and the elementary backstroke-were applied. With regards to clothes-sw, swimmers wore T-shirts, sportswear(shirt and pants)over swimwear and running shoes. In both cases of control-sw and clothes-sw, the V^^・O_2 was increased exponentially with increased swimming speed. The V^^・O_2 of the subjects during the clothed tests did not exceed 1.4 times of that in the case of control-sw at swimming speeds below 0.3m/s. As swimming speeds increased, V^^・O_2 difference in both cases increased. Consequently, V^^・O_2 in the clothed tests was equal to 1.5-1.6 times and 1.5-1.8 times of that in the swimwear tests at speeds of 0.5 and 0.7 m/s, respectively. At speeds below 0.6 m/s in clothes-sw, the breaststroke showed lower V^^・O_2 than the front crawl stroke, and the elementary backstroke showed higher V^^・O_2 than the other two swimming strokes. RPE increased linearly with %peak V^^・O_2. In addition, any RPE differences among the three swimming strokes were not shown in the control-sw tests. At an exercise intensity above 60% peak V^^・O_2, clothed swimmers showed slightly higher RPE in the front crawl stroke compared to that in the two other swimming strokes. J Physiol Anthropol 19(4) : 167-173, 2000 http://www.jstage.jst.go.jp/en/
日本生理人類学会の論文

Effect of Wearing Clothes on Oxygen Uptake and Ratings of Perceived Exertion while Swimming

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