饮食控制的乳清蛋白补充剂:在持续抵抗运动后减轻血清肌酸激酶水平
Chae-Been Kim1, Dohyun Ahn1, Ji-Been Kim2
1Department of Sport Science, Pusan National University, Busan, Republic of Korea.
Journal of the American Nutrition Association
|August 25, 2025
概括
补充乳清蛋白可能会减少抵抗运动造成的肌肉损伤. 这项研究发现,与安慰剂相比,服用乳清蛋白的人在6天的训练后血清肌酸酶 (CK) 水平较低.
科学领域:
- 运动生理学
- 营养生物化学
背景情况:
- 虽然阻力运动是有益的, 但会导致肌肉损伤.
- 奇特的肌肉收缩是运动引起的肌肉损伤的主要原因.
- 血清肌酸激酶 (CK) 是肌肉损伤的生物标志物.
研究的目的:
- 研究乳清蛋白补充剂对抗性运动后血清CK水平的影响.
- 确定乳清蛋白是否可以减轻运动引起的肌肉损伤.
主要方法:
- 一个随机对照试验,
- 参与者被分配到乳清蛋白补充剂组 (PSG) 或安慰剂组 (CON).
- 在连续6天内每天进行60分钟的阻力运动 (60% 1-RM),在基线,运动后和最后24小时后测量血清CK.
主要成果:
- 对血清CK水平观察到显著的分组时间相互作用 (p=0. 049).
- 假药组 (CON) 显示了运动后血清CK的显著增加,而蛋白质补充剂组 (PSG) 则没有.
- 与研究的最后一天的CON相比,PSG的血清CK水平明显较低.
结论:
- 补充乳清蛋白可能有效降低血清CK水平的增加.
- 补充可能有助于减轻长期抵抗运动引起的肌肉损伤.
- 需要进一步的研究来证实这些发现,并探索最佳的补充方案.
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