Post-competition blood lactate concentrations in collegiate swimmers |
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Authors: | M N Sawka PhD R G Knowlton D S Miles J B Critz |
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Institution: | (1) Physical Education Research Laboratory, Department of Physiology, and School of Medicine, Southern Illinois University, 62901 Carbondale, IL, USA;(2) Department of Physiology, School of Medicine, Wright State University, 45435 Dayton, OH, USA |
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Abstract: | Summary The purpose of this investigation was to quantitate post-competition lactate (LA) concentrations of swimmers during a competitive collegiate meet. Blood LA was measured by an enzymatic method on 23 subjects 5 min after each race event. The largest mean LA concentration of 25.7 mM/L was observed in swimmers after competing in the 200-yd individual medley. Swimmers in the 200-yd butterfly, back, breast and freestyle races had similar mean blood LA concentrations (ranging from 16.4 to 20.6 mM/L). Swimmers in the two longest events, the 500-yd and 1,000-yd free style races, had mean LA concentrations of 15.6 and 10.0 mM/L, respectively. To account for the effects of motivation, LA concentrations were measured following maximal effort noncompetitive 100 and 200-yd swims. LA concentrations were slightly greater in conjunction with faster performances for the competitive as compared to the noncompetitive 100 and 200-yd swims. |
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Keywords: | Competitive swimming Blood lactate Anaerobic metabolism glycolysis |
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