Effect of resistance exercise on free radical production
作者:
McBRIDE JEFFREY,
KRAEMER WILLIAM,
TRIPLETT-McBRIDE TRAVIS,
SEBASTIANELLI WAYNE,
期刊:
Medicine and Science in Sports and Exercise
(OVID Available online 1998)
卷期:
Volume 30,
issue 1
页码: 67-72
ISSN:0195-9131
年代: 1998
出版商: OVID
关键词: MUSCLE DAMAGE;CREATINE KINASE;VITAMINE E;MALONDIALDEHYDE;LIPID PEROXIDATION
数据来源: OVID
摘要:
The purposes of this investigation were to see whether free radical production changed with high intensity resistance exercise and, secondly, to see whether vitamin E supplementation would have any effect on free radical formation or variables associated with muscle membrane disruption. Twelve recreationally weight-trained males were divided into two groups. The supplement group (S) received 1200 IUs of vitamin E once a day (3 × 400 IU·d-1) for a period of 2 wk. The placebo group (P) received cellulose-based placebo pills once a day for the same period of time. Creatine kinase activity was significantly elevated between preexercise and immediately postexercise, 6 h postexercise, and 24 h postexercise for both groups. The placebo group also had a significant increase in creatine kinase activity at 48 h postexercise. There was a significant difference in creatine kinase activity between the groups at 24 h after exercise. Plasma malondialdehyde significantly increased from preexercise levels for the P group at 6 and 24 h postexercise. Plasma malondialdehyde concentrations significantly increased in the S group between preexercise and immediately postexercise levels. This study indicates that high intensity resistance exercise increases free radical production and that vitamin E supplementation may decrease muscle membrane disruption.
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