Davies C T, Sandstrom E R
Department of Sport and Exercise Sciences, University of Birmingham, England.
Eur J Appl Physiol Occup Physiol. 1989;58(8):838-44. doi: 10.1007/BF02332216.
The maximal average power output (Wmax) has been examined in 10 male students, 22 pursuit and 12 sprint cyclists. In 24 of these subjects (8 students, 10 pursuit and 6 sprint cyclists), estimates of the maximal capacity (Wcap) of the short-term anaerobic energy yielding processes were made. The results show that the sprinters had a higher absolute Wmax (1241 +/- 266 W) and Wcap (16.7 +/- 4.9 kJ) than either the students (1019 +/- 183 W, 14.7 +/- 2.8 kJ) or the pursuit cyclists (962 +/- 206 W, 14.0 +/- 2.9 kJ). However, the differences were removed when the values were standardised for muscle size. In the sprinters the Wmax was attained at an optimal pedal frequency Vopt of 132 +/- 3 min-1 and the estimated maximal velocity of pedalling (V0) was 262 +/- 8 min-1. The comparable figures in the students and pursuit cyclists were 118 +/- 8 min-1, 235 +/- 17 min-1 and 122 +/- 6 min-1, 242 +/- 12 min-1 respectively. The coefficient of variation of duplicate measurements of Wcap was found to be +/- 9%. Using data of Wilkie (1968) for muscle phosphagen and glycolytic stores (27 mmol.kg-1), it was estimated that the probable efficiency of the anaerobic processes during maximal cycling was 0.22. It was concluded that Wmax and Wcap are largely determined by body size and muscularity. The efficiency of anaerobiosis appears to be of the same order of magnitude as found for oxidative work.
对10名男学生、22名追逐赛自行车运动员和12名短跑自行车运动员的最大平均功率输出（Wmax）进行了检测。在这些受试者中的24人（8名学生、10名追逐赛自行车运动员和6名短跑自行车运动员）身上，对短期无氧供能过程的最大能力（Wcap）进行了估算。结果显示，短跑自行车运动员的绝对Wmax（1241±266瓦）和Wcap（16.7±4.9千焦）高于学生（1019±183瓦，14.7±2.8千焦）和追逐赛自行车运动员（962±206瓦，14.0±2.9千焦）。然而，当对肌肉大小进行标准化处理后，这些差异就消除了。短跑自行车运动员在132±3次/分钟的最佳蹬踏频率Vopt时达到Wmax，估计的最大蹬踏速度（V0）为262±8次/分钟。学生和追逐赛自行车运动员的相应数据分别为118±8次/分钟，235±17次/分钟和122±6次/分钟，242±12次/分钟。发现Wcap重复测量的变异系数为±9%。利用威尔基（1968年）关于肌肉磷酸原和糖酵解储备（27毫摩尔/千克）的数据，估计最大骑行过程中无氧过程的可能效率为0.22。得出的结论是，Wmax和Wcap在很大程度上由体型和肌肉发达程度决定。无氧代谢的效率似乎与氧化做功时的效率处于同一数量级。
