Stainsby W N, Peterson C V, Barbee R W
Med Sci Sports Exerc. 1981;13(1):27-30.
The oxygen uptake by the gastrocnemius-plantaris muscle group of the dog was measured during brief submaximal isotonic-tetanic contractions. Shortening in the contractions was kept constant while the load was altered by adjusting the stimulation voltage applied to the motor nerve. Incompletely fused tetanic contractions were produced by 200 msec trains of impulses at a frequency of 20/sec. The trains were delivered once a second. The rate of oxygen uptake (VO2) was linearly related to the external work rate (W). The relationship between VO2, microliter/g min, vs W, gM/g min, is described by the equation VO2 = 18.0 + 3.36 W. The average maximal gross efficiency was 12.5%. The major determinant of VO2 during contractions appeared to be the number of muscle fibers which were activated during the contractions.
在短暂的次最大等张强直收缩期间，测量了狗的腓肠肌 - 比目鱼肌群的摄氧量。收缩时的缩短保持恒定，同时通过调整施加到运动神经的刺激电压来改变负荷。以20次/秒的频率施加200毫秒的脉冲串产生不完全融合的强直收缩。脉冲串每秒发送一次。摄氧率（VO2）与外部做功速率（W）呈线性相关。VO2（微升/克·分钟）与W（克·米/克·分钟）之间的关系由方程VO2 = 18.0 + 3.36W描述。平均最大总效率为12.5%。收缩期间VO2的主要决定因素似乎是收缩期间被激活的肌纤维数量。
