Muscle damage and soreness after endurance exercise of the elbow flexors
Muscle damage and soreness after endurance exercise of the elbow flexors
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DOI：
10.1097/00005768-200206000-00003
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发表时间：
2002-06-01
期刊：
影响因子：
--
通讯作者：
Sacco, P
中科院分区：
文献类型：
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作者：
Nosaka, K;Newton, M;Sacco, P
NOSAKA， K.， M. NEWTON和P. SACCO。肘关节屈肌耐力运动后的肌肉损伤和酸痛。医学科学。体育Exerc。，第34卷。第6期，第920-927页2002。目的：研究肘关节屈肌耐力运动后III型肌肉损伤的间接市场变化，并与最大偏心动作（Max-ECC）后3种I型屈肌的变化进行比较。方法：18名男生以60-180度肘关节角有节奏地举（1 s）放（1 s）一个轻哑铃（1.1-1.8 k，-: MIF的9%）2小时（2-h Ex）。最大等距力（MIF）。放松（RANG）和屈曲肘关节角度（FANG），上臂围度（CIR），肌肉酸痛（SOR）。b超（US）和血浆肌酸激酶（CK）活性在运动前、运动后立即和运动后96小时进行评估。结果：Ex 2 h后各项指标与Max-ECC时间过程相似，差异均有统计学意义（P < 0.05）；然而，RANG， FANG， CIR， US。CK（峰值：356 +/- 121 (IUL-1)- l -.）显著低于Max-ECC处理（P < 0.05）。SOR在Ex 2小时后立即出现，并在运动后24-48小时达到峰值。MIF降至运动前水平的44.1%，显著低于运动后立即Max-ECC后的58.1% （P < 0.05）。MIF在运动后24 h恢复到79.8%，96 h恢复到97.8%，比Max-ECC在96 h恢复到73.1%显著（P < 0.05）快。结论：与12次最大偏心肌动作相比，低强度连续肌肉收缩（3600次）导致肌肉损伤，但肌肉损伤程度较轻，恢复速度较快。
NOSAKA, K., M. NEWTON, and P. SACCO. Muscle damage and soreness after endurance exercise of the elbow flexors. Med. Sci. Sports Exerc., Vol. 34. No. 6, pp. 920-927 2002. Purpose: This study investigated changes in indirect markets of III muscle damage after endurance exercise of the elbow flexors and compared the changes with those after maximal eccentric actions (Max-ECC) of thee I bow flexors. Methods: Eighteen male students rhythmically lifted (1 s) and lowered (1 s) a light dumbbell (1.1-1.8 k,-: 9% of MIF) in 60-180degrees of elbow joint angle for 2 h (2-h Ex). Maximal isometric force (MIF). relaxed (RANG) and flexed elbow joint angles (FANG), upper-arm circumference (CIR), muscle soreness (SOR). B-mode ultrasound (US), and plasma creatine kinase (CK) activity were assessed before and immediately after, and up to 96 h after exercise. Results: All measures were altered significantly (P < 0.05) after 2-h Ex in a similar time course to Max-ECC; however, changes in RANG, FANG, CIR, US. and CK (peak: 356 +/- 121 (IUL-1)-L-.) were significantly (P < 0.05) smaller compared with those after Max-ECC. SOR developed immediately after 2-h Ex and peaked 24-48 h after exercise. MIF dropped to 44.1% of the preexercise level, which was significantly (P < 0.05) lower than that after Max-ECC (58.1%), immediately postexercise. MIF recovered to 79.8% at 24 h, and 97.8% at 96 h postexercise, which was a significantly (P < 0.05) faster recovery compared with that of Max-ECC (73.1% at 96 h). Conclusion: These results showed low-intensity continuous muscle contractions (3600 times) resulted in muscle damage: however, the magnitude of the muscle damage was less severe, and the recover), was faster compared with 12 maximal eccentric muscle actions.