Oxygen consumption in nonexercising muscle after exercise.
Oxygen consumption in nonexercising muscle after exercise.
复制标题
运动后非运动肌肉的耗氧量。
DOI：
10.1055/s-2007-989262
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发表时间：
2008
影响因子：
2.5
通讯作者：
T. Nagasawa
中科院分区：
文献类型：
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作者：
T. Nagasawa
运动强度对非运动肌肉运动后耗氧量的影响知之甚少。本研究探讨了运动强度对自行车运动后非运动前臂屈肌（nonexVO 2 mus）肌肉耗氧量（VO 2 mus）的影响。8名健康男性受试者在不同的日子进行了20分钟的骑自行车运动，最大耗氧量（%VO2max）的30%，50%和70%。通过近红外光谱法测量静息时、运动结束时和运动后恢复期间的nonexVO 2 mus值。VO 2 mus使用动脉闭塞期间氧合血红蛋白的降低速率来确定。在30%、50%和70%VO2max时，运动结束时的nonexVO 2 mus分别比静息值显著增加1.3 +/- 0.1、2.0 +/-0.3和2.2 +/- 0.3倍。NonexVO 2 mus在恢复3 - 5分钟后恢复到静息值，然后在所有运动强度下运动120分钟后无显著变化。70%VO2max运动结束时的NonexVO 2 mus显著高于30%VO2max运动后。这些结果表明，20分钟的骑自行车运动诱导增加nonexVO 2 mus和更高强度的运动产生更大的增加nonexVO 2 mus运动后。
Little is known about the effect of exercise intensity on post-exercise oxygen consumption in nonexercising muscle. This study examined the effect of exercise intensity on muscle oxygen consumption (VO2mus) in nonexercising forearm flexor muscles (nonexVO2mus) after cycling exercise. Eight healthy male subjects performed 20 min of cycling exercise at 30%, 50%, and 70% of maximal oxygen consumption (%VO2max) on separate days. The nonexVO2mus values at rest, at the end of exercise, and during recovery after exercise were measured by near-infrared spectroscopy. VO2mus was determined using the rate of decrease in oxygenated hemoglobin during arterial occlusion. The nonexVO2mus at the end of exercise significantly increased by 1.3 +/- 0.1, 2.0 +/- 0.3, and 2.2 +/- 0.3-fold over resting values at 30%, 50%, and 70% VO2max, respectively. NonexVO2mus returned to the resting value after 3 - 5 min of recovery and then showed no significant change for 120 min after exercise at all exercise intensities. NonexVO2mus at the end of exercise at 70% VO2max was significantly higher than that after exercise at 30% VO2max. These results show that 20 min of cycling exercise induced an increase in nonexVO2mus and that higher intensity exercise produces a larger increase in nonexVO2mus after exercise.