中医消除运动性肌肉疲劳临床实验研究之一——外用、内服中药对人体骨骼肌两周离心运动肌肉酸痛和形态学影响

30名志愿受试者分别以最大等长收缩力的 6 0 % (第 1周 )和 80 % (第 2周 )完成连续 2周上臂屈肌离心收缩训练 ,随机分成中药内服、外用和对照组进行治疗和处理 ,对肌肉酸痛部位和等级、肘关节屈曲角度、肘关节伸直角度、上臂臂围、上臂屈肌硬度、血清CK以及肱二头肌回声的平均光密度和肌肉厚度超声检测进行观测。结果显示 ,强度增加后的第 2周 ,肌肉酸痛程度、肘关节伸直角度和血清CK值在实验结束时均已恢复正常 ;肘关节屈曲角度、上臂臂围和肌肉硬度等与延迟性肌肉酸痛 (DOMS)后期肌肉增粗有关的指标 ,在第 2周训练强度增加后呈恢复趋势 ,无继续加重现象 ;大强度离心训练后肌肉厚度增加 ,训练后第 3天出现肌肉回声增强的改变。实验表明 ,内服和外用中药对DOMS的消除均有一定的作用 ,尤其是外用药对本实验指标的改善更明显一些

Clinical Experiment of Eliminating Exercise-induced Muscular Fatigue by Traditonal Chinese Medicine (TCM)--Effects of Internal and External Application of TCM on Muscular Soreness and Morphology of Man Skeletal Muscle during Two-week Eccentric Training

Thirty volunteers were divided into three groups: internal, external adminstration of traditional Chinese medicine, TCM and control. The muscular soreness, elbow flexion and extension angle, circumference and flexor muscle stiffness of upper arm, serum CK and ultrasound echo average light density and thickness of biceps brachii muscle after continuing 2 week eccentric training of upper arm flexor muscle with 60% and 80% of max isometric contraction during first and second week were measured. The results showed that the muscular soreness, elbow extension angle and CK recovered normally by the end of the experiment. The elbow flexion angle, circumference and flexor muscle stiffness of upper arm also had a tendency of recovery. The thickness of biceps brachii muscle increased after training and echo average light density reinforced after three day training. The internal and external adminstration of TCM had obvious effects on the elimilation of DOMS, especialy external adminstration of TCM.