Choi SW, Kurokawa T, Ebisu Y, Kikkawa K, Shiokawa M, Yamasaki M.
Faculty of Education, Hiroshima University.
Journal of Physiological Anthropology and Applied Human Science Vol. 19; 167-173 (2000)
ABSTRACT
Keywords: physiology, swimming in clothes, oxygen uptake (VO2), ratings of perceived exertion (RPE), swimming velocity
For a comparative study between swimming in swimwear (control-sw) and swimming in clothes (clothes-sw),
oxygen uptake (VO2) and ratings of perceived exertion (RPE) were measured.
The subjects were six male members of a university swimming team.
Three swimming strokes were applied, the breaststroke, the front crawl stroke and the elementary backstroke.
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 VO2 was increased exponentially with increased swimming speed.
The VO2 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 0.3 m/s.
As swimming speeds increased, VO2 difference in both cases increased.
Consequently, VO2 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 VO2 than the front crawl stroke,
and the elementary backstroke showed higher VO2 than the other two swimming strokes.
RPE increased linearly with %peak VO2.
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 VO2, clothed swimmers
showed slightly higher RPE in the front crawl stroke compared to that in the two other swimming strokes.
PMID: 11037690 [PubMed - indexed for MEDLINE]
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