Macková E, Melichna J, Havlícková L, Placheta Z, Blahová D, Semiginovský B
Int J Sports Med. 1986 Oct;7(5):295-7. doi: 10.1055/s-2008-1025778.
Muscle fiber distribution and muscle enzyme activity (m. vastus lat.) were investigated in 10 elite sprint cyclists and 12 nonathletes. The ratio of fast to slow muscle fibers was 2:3 in cyclists and 3:2 in nonathletes. The mean diameter of each muscle fiber type was significantly higher in the athletes. The mean enzyme activity values in mu kat X g-1 w.w. for cyclists and nonathletes, respectively, were as follows: triosephosphate dehydrogenase (TPDH), 6.2 and 3.78; lactate dehydrogenase (LDH), 4.4 and 4.59; citrate synthase (CS), 0.154 and 0.13; hydroxyacyl-CoA dehydrogenase (HAD), 0.041 and 0.07. The mean difference between groups in TPDH and in (TPDH + LDH)/(CS + HAD) ratio were statistically significant. Maximum voluntary isometric strength (knee extension) was about 17% greater in cyclists than the mean value for Czechoslovakian men of the same age. A strong positive correlation (r = 0.72) between the percent of fast glycolytic fibers (type II B) and isometric strength was observed in the cyclists. Furthermore, mean weight-compensated maximal oxygen consumption (VO2 max, ml X kg-1 X min-1) for all subjects (n = 22) was significantly related to percent of slow oxidative fibers (type I) (r = 0.75) and to the mean diameter of type II B (r = 0.58), fast oxidative-glycolytic fibers (type II A) (r = 0.68) and type I fibers (r = 0.59).
对10名优秀短跑自行车运动员和12名非运动员的肌肉纤维分布和肌肉酶活性（股外侧肌）进行了研究。自行车运动员的快肌纤维与慢肌纤维比例为2:3，非运动员为3:2。运动员中每种肌纤维类型的平均直径显著更高。自行车运动员和非运动员的每克湿重微摩尔卡特的平均酶活性值分别如下：磷酸丙糖脱氢酶（TPDH），6.2和3.78；乳酸脱氢酶（LDH），4.4和4.59；柠檬酸合酶（CS），0.154和0.13；羟酰基辅酶A脱氢酶（HAD），0.041和0.07。TPDH以及（TPDH + LDH）/（CS + HAD）比值在两组间的平均差异具有统计学意义。自行车运动员的最大自主等长力量（膝关节伸展）比同年龄的捷克斯洛伐克男性平均值大约高17%。在自行车运动员中观察到快速糖酵解纤维（II B型）百分比与等长力量之间存在强正相关（r = 0.72）。此外，所有受试者（n = 22）的平均体重校正最大摄氧量（VO2 max，毫升×千克-1×分钟-1）与慢氧化纤维（I型）百分比（r = 0.75）、II B型（r = 0.58）、快速氧化-糖酵解纤维（II A型）（r = 0.68）和I型纤维的平均直径（r = 0.59）显著相关。
