Establishing maximal oxygen uptake in young people during a ramp cycle test to exhaustion

被引:145
作者
Barker, A. R. [1 ,2 ]
Williams, C. A. [1 ,2 ]
Jones, A. M. [1 ]
Armstrong, N. [2 ]
机构
[1] Univ Exeter, Sch Sport & Hlth Sci, Bioenerget & Human Performance Res Grp, Exeter EX1 2LU, Devon, England
[2] Univ Exeter, Sch Sport & Hlth Sci, Childrens Hlth & Exercise Res Ctr, Exeter EX1 2LU, Devon, England
关键词
Children; Aerobic Fitness; Fitness Testing; Supramaximal Exercise; SHORT-TERM EXERCISE; O-2 UPTAKE RESPONSE; AEROBIC FITNESS; BODY SIZE; PEAK VO2; CHILDREN; PERFORMANCE; GROWTH; ADOLESCENTS; PARAMETERS;
D O I
10.1136/bjsm.2009.063180
中图分类号
G8 [体育];
学科分类号
040301 [体育人文社会学];
摘要
Objectives This study tested the hypotheses that (1) secondary criteria (respiratory exchange ratio (RER), heart rate, blood [ lactate]) traditionally used to verify the determination of maximum oxygen uptake (<(V)over dot>O(2max)) in children can result in the acceptance of a 'submaximal' <(V)over dot>O(2max) or falsely reject a 'true' <(V)over dot>O(2max) and (2) the <(V)over dot>O(2peak) recorded during a ramp test in children is comparable to the <(V)over dot>O(2peak) achieved during supramaximal testing. Methods Thirteen children (9-10 years) completed a ramp cycle test to exhaustion to determine their <(V)over dot>O(2peak). After 15 min of recovery, the participants performed a supramaximal cycle test to exhaustion at 105% of their ramp test peak power. Results Compared with the <(V)over dot>O(2peak) during the ramp test, a significantly lower <(V)over dot>O(2) was recorded at a RER of 1.00 (1.293 litre/min (SD 0.265) vs 1.681 litre/min (SD 0.295), p<0.001, n=12), at a heart rate of 195 beats/min (1.556 litre/min (SD 0.265) vs 1.721 litre/min (SD 0.318), p<0.001, n=10) and at 85% of age-predicted maximum (1.345 litre/min (SD 0.228) vs 1.690 litre/min (SD 0.284), p<0.001, n=13). Supramaximal testing yielded a <(V)over dot>O(2peak) that was not significantly different from the ramp test (1.615 litre/min (SD 0.307) vs 1.690 litre/min (SD 0.284), p=0.090, respectively). Conclusions The use of secondary criteria to verify a maximal effort in young people during ramp cycling exercise may result in the acceptance of a submaximal <(V)over dot>O(2max). As supramaximal testing elicits a <(V)over dot>O(2peak) similar to the ramp protocol, thus satisfying the plateau criterion, the use of such tests is recommended as the appropriate method of confirming a 'true' <(V)over dot>O(2max) with children.
引用
收藏
页码:498 / 503
页数:6
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