Thorstensson A, Sjödin B, Karlsson J
Acta Physiol Scand. 1975 Jul;94(3):313-8. doi: 10.1111/j.1748-1716.1975.tb05891.x.
Sprint type strength training was performed 3-4 times a week for 8 weeks by 4 healthy male students (16-18 yrs). The training was carried out on a treadmill at high speed and with high inclination. Muscle biopsies were obtained from vastus lateralis before and after the training period for histochemical classification of slow and fast twitch muscle fibres and for biochemical determination of metabolites and enzyme activities. Muscle fibre type distribution was unchanged, whereas fibre area indicated an increase for both fibre types in 3 subjects after training. The muscle enzyme activities of Mg2+ stimulated ATPase, myokinase and creatine phosphokinase increased 30, 20, and 36 percent, respectively. Muscle concentration of ATP and creatine phosphate (CP) did not change with training. Sargent's jump increased with on average 4 cm (from 47 to 51 cm), maximal voluntary contraction (MVC) with 19 kp (from 165 to 184 kp), and endurance at 50 percent of MVC with 9 s (from 47 to 56 s), respectively. After training all subjects showed a gain in body weight (mean 1.4 kg) and in thigh circumference (mean 1.5 cm) indicating a larger leg muscle volume and consequently also an increase in total ATP and CP.
4名健康男学生（16 - 18岁）进行了为期8周的冲刺型力量训练，每周3 - 4次。训练在高速且高坡度的跑步机上进行。在训练期前后从股外侧肌获取肌肉活检样本，用于慢肌纤维和快肌纤维的组织化学分类以及代谢物和酶活性的生化测定。肌纤维类型分布未改变，而在3名受试者中，训练后两种纤维类型的纤维面积均显示增加。镁离子刺激的ATP酶、肌激酶和肌酸磷酸激酶的肌肉酶活性分别增加了30%、20%和36%。肌肉中ATP和肌酸磷酸（CP）的浓度并未因训练而改变。萨金特纵跳平均增加了4厘米（从47厘米增至51厘米），最大自主收缩（MVC）增加了19千克力（从165千克力增至184千克力），MVC的50%时的耐力增加了9秒（从47秒增至56秒）。训练后，所有受试者的体重均增加（平均1.4千克），大腿围度增加（平均1.5厘米），表明腿部肌肉体积增大，因此总的ATP和CP也增加。
