SKELETAL-MUSCLE CYTOCHROME-C AND MYOGLOBIN, ENDURANCE, AND FREQUENCY OF TRAINING
SKELETAL-MUSCLE CYTOCHROME-C AND MYOGLOBIN, ENDURANCE, AND FREQUENCY OF TRAINING
复制标题
DOI：
10.1152/jappl.1981.51.3.746
复制
发表时间：
1981-01-01
影响因子：
3.3
通讯作者：
HICKSON, RC
中科院分区：
文献类型：
--
作者：
HICKSON, RC
研究了不同训练频率对3种骨骼肌运动能力、线粒体标志物细胞色素c和肌红蛋白（负责氧的储存和运输）的影响。雌性大鼠在跑步机上每天跑步120分钟，2、4或6天/周，连续14周。训练的结果是，运动时间与训练次数/周成比例地增加。细胞色素c浓度随快速收缩的红股外侧肌（FTR）、慢收缩的比目鱼肌（STR）和混合跖肌的运动次数/周呈线性增加（范围20-90%）。各训练组快速收缩白色股外侧肌（FTW）细胞色素c浓度升高幅度大致相同（40-50%）。肌红蛋白浓度随训练的增加（13-45%）与FTR肌的频率显著相关，而与STR肌无关。无论训练组如何，FTW肌肉的肌红蛋白水平保持不变。红色骨骼肌类型的耐力运动能力和线粒体含量明显受到训练频率的直接影响。
The effects of various training frequencies on performance capacity, the mitochondrial marker cytochrome c and myoglobin (which is responsible for storage and transport of O2) in the 3 types of skeletal muscle were studied. Female rats were trained by treadmill running up to 120 min/day, either 2, 4 or 6 days/wk for 14 wk. As a result of training, exercise time to exhaustion was increased in proportion to the number of training sessions/wk. Cytochrome c concentration increased (range 20-90%) as a linear function of the number of exercises/wk in the fast-twitch red vastus lateralis (FTR), the slow-twitch soleus (STR) and the mixed plantaris muscles. The concentration of cytochrome c in fast-twitch white vastus lateralis (FTW) muscles increased to approximately the same extent (40-50%) in all training groups. The increases in myoglobin concentration (13-45%) with training were significantly related to frequency in FTR muscle but not in STR muscle. Myoglobin levels in FTW muscle remained unchanged, regardless of training group. The capacity to perform endurance exercise and the mitochondrial content of the red skeletal muscle types apparently are directly affected by training frequency.