MUSCLE METABOLISM DURING 30S, 60S AND 90S OF MAXIMAL CYCLING ON AN AIR-BRAKED ERGOMETER

被引:135
|
作者
WITHERS, RT [1 ]
SHERMAN, WM [1 ]
CLARK, DG [1 ]
ESSELBACH, PC [1 ]
NOLAN, SR [1 ]
MACKAY, MH [1 ]
BRINKMAN, M [1 ]
机构
[1] CSIRO, DIV HUMAN NUTR, ADELAIDE, SA 5000, AUSTRALIA
关键词
OXYGEN DEFICIT; MUSCLE LACTATE; PHOSPHAGENS;
D O I
10.1007/BF00364462
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
This study examined the anaerobic and aerobic contributions to muscle metabolism during high intensity short duration exercise. Six males [mean (SD): age 25.0 (6.0) years, height 179.0 (8.2) cm, mass 70.01 (7.42) kg, VO2max 4.63 (0.53) 1.min-1, body fat 12.7 (2.3)%] performed three counterbalanced treatments of 30, 60 and 90 s of maximal cycling on an air-braked ergometer. All treatments were also performed on days when biopsies were not taken from the vastus lateralis muscle and cannulae not inserted into a forearm vein to ascertain whether these procedures adversely affected performance. The mean results can be summarised as follows: [GRAPHICS] The muscle lactate and O2 deficit data suggested that 60 and 90 s were more appropriate durations than 30 s for assessing the anaerobic capacity on an air-braked cycle ergometer. The mean power outputs also indicated that the invasive procedures did not adversely affect performance.
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页码:354 / 362
页数:9
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