运动诱导的肌肉损伤易感性是否依赖于身体部位？全身易感性的证据。

Is exercise-induced muscle damage susceptibility body segment dependent? Evidence for whole body susceptibility.

作者信息

Machado M, Brown L E, Augusto-Silva P, Pereira R

机构信息

Laboratory of Human Movement Studies - Universitary Fundation of Itaperuna - Itaperuna, RJ, Brazil.

出版信息

J Musculoskelet Neuronal Interact. 2013 Mar;13(1):105-10.

PMID:23445920

Abstract

OBJECTIVE

The current study examined serum CK activity following bench press (BP) and leg press (LP) exercise-induced muscle damage to evaluate agreement of subjects classification as either high (HiR) or normal responders (NoR) between upper and lower body muscle groups.

METHODS

Forty-two men performed two resistance exercise bouts (BP and LP) of four sets of maximum repetitions to concentric failure at 10RM, following a random design.

RESULTS

Fourteen subjects were classified as HiR after the BP and thirteen subjects after LP, while nine subjects were classified as HiR for both exercises. The analysis revealed good agreement (Kappa=0.528, with SE=0.137 and 95% confidence interval: from 0.259 to 0.798). Additionally, we found a significant moderate correlation (r=0.65, p<0.001) between CK peaks obtained following LP and BP.

CONCLUSION

Our results suggest that exercise-induced muscle damage susceptibility is a whole body characteristic and is not body segment dependent. Thus, it may be that genetic or systemic mechanisms explain individual variation in muscle damage susceptibility.

摘要

目的

本研究检测卧推（BP）和腿推（LP）运动诱导肌肉损伤后的血清肌酸激酶（CK）活性，以评估上、下肢肌肉群中受试者分类为高反应者（HiR）或正常反应者（NoR）的一致性。

方法

42名男性按照随机设计进行两组阻力运动（BP和LP），每组进行四组最大重复次数直至10RM时向心收缩力竭。

结果

BP后14名受试者被分类为HiR，LP后13名受试者被分类为HiR，而9名受试者在两项运动中均被分类为HiR。分析显示一致性良好（Kappa = 0.528，标准误= 0.137，95%置信区间：0.259至0.798）。此外，我们发现LP和BP后获得的CK峰值之间存在显著的中度相关性（r = 0.65，p < 0.001）。