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Effects of Short-Term of Rest and Active Recovery after Eccentric Exercise on the Recovery of Muscle Damage

短期靜態與動態處理對離心運動引起肌肉損傷恢復的影響

摘要


The purpose of the present study was to examine the effect of additional and reduced activities after eccentric exercise on the recovery of muscle damage markers. Thirty-seven college-age males were randomly assigned to active recovery (AR; n=13), immobilization (IM, n=12) and control (CON; n=12) groups. Participants performed a bout of 50 maximal eccentric contractions of the elbow flexors (ECC) using a dumbbell that was set at 100% of the pre-exercise maximal isometric force (MIF) level. Immediately after ECC, the IM participants had their arm immobilized in a cast and secured in a sling at 90 for 4 consecutive days of this study. Immediately after ECC, at 1, 2, 3, and 4 days after ECC, the AR participants performed a daily exercise regimen of 50 biceps curls with a 5 lb dumbbell. The CON participants had no restriction of their arm activity. MIF active range of motion (ROM), upper arm circumference (CIR), and muscle soreness were measured for 2 consecutive days pre-ECC (baseline), immediately after ECC, and at 24 hour intervals for 7 consecutive days (at 4 to 10 days after ECC) after the 4-day treatment period. Plasma CK activity was assessed before and for 10 consecutive days after ECC for all groups. There were significant changes (p<.05) in all criterion measures (i.e., MIF ROM, CIR, soreness, and CK) after ECC for all groups. The pattern of recovery in MIF was enhanced (p<.05) by both AR and IM when compared to CON, whereas recovery from muscle soreness was not significantly improved by IM and AR (p>.05). Moreover there was a significant increase in CK after ECC for all groups (p<.05). Although there was not a significant difference (p>.05) following ECC between AR and CON, the IM group was significantly lower (p<.05) in CK during and after treatment periods following ECC than CON These data suggest that active recovery may had a positive effect on the recovery of MIF whereas immobilization may had a positive effect on the recovery of MIF CIR, and CK. Therefore, this finding may provide some useful information for the general public and athletes when muscle damage is obvious.

並列摘要


The purpose of the present study was to examine the effect of additional and reduced activities after eccentric exercise on the recovery of muscle damage markers. Thirty-seven college-age males were randomly assigned to active recovery (AR; n=13), immobilization (IM, n=12) and control (CON; n=12) groups. Participants performed a bout of 50 maximal eccentric contractions of the elbow flexors (ECC) using a dumbbell that was set at 100% of the pre-exercise maximal isometric force (MIF) level. Immediately after ECC, the IM participants had their arm immobilized in a cast and secured in a sling at 90 for 4 consecutive days of this study. Immediately after ECC, at 1, 2, 3, and 4 days after ECC, the AR participants performed a daily exercise regimen of 50 biceps curls with a 5 lb dumbbell. The CON participants had no restriction of their arm activity. MIF active range of motion (ROM), upper arm circumference (CIR), and muscle soreness were measured for 2 consecutive days pre-ECC (baseline), immediately after ECC, and at 24 hour intervals for 7 consecutive days (at 4 to 10 days after ECC) after the 4-day treatment period. Plasma CK activity was assessed before and for 10 consecutive days after ECC for all groups. There were significant changes (p<.05) in all criterion measures (i.e., MIF ROM, CIR, soreness, and CK) after ECC for all groups. The pattern of recovery in MIF was enhanced (p<.05) by both AR and IM when compared to CON, whereas recovery from muscle soreness was not significantly improved by IM and AR (p>.05). Moreover there was a significant increase in CK after ECC for all groups (p<.05). Although there was not a significant difference (p>.05) following ECC between AR and CON, the IM group was significantly lower (p<.05) in CK during and after treatment periods following ECC than CON These data suggest that active recovery may had a positive effect on the recovery of MIF whereas immobilization may had a positive effect on the recovery of MIF CIR, and CK. Therefore, this finding may provide some useful information for the general public and athletes when muscle damage is obvious.

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