定期的适度体力活动可能会在急性运动压力后加速和强化促炎和促溶脂介质反应
Linda Malan1, Lizelle Zandberg1, Cindy Pienaar2
1Center of Excellence for Nutrition, North-West University, Potchefstroom, South Africa.
Prostaglandins, leukotrienes, and essential fatty acids
|August 31, 2024
概括
休跑步者在抵抗运动后,与不太活跃的人相比,表现出更快,更强烈的响应,促进炎症和缓解炎症的脂质介质. 这突出了炼的重点.
科学领域:
- 运动生理学 运动生理学
- 脂质媒介生物化学 脂质媒介生物化学
背景情况:
- 多不和脂肪酸 (PUFA) 衍生的脂质介质调节炎症.
- 运动可以影响这些炎症和解决途径.
- 了解这些反应对于运动科学和健康至关重要.
研究的目的:
- 为了比较白细胞中PTGES2 (COX2) 和ALOX15的表达.
- 测量5-和15-HETE,18-HEPE和17-HDHA的血水平.
- 为了研究男性休跑步运动员与不那么活跃的对照对象在不习惯的抵抗运动后的这些反应.
主要方法:
- 测试前后研究设计.
- 包括18-35岁的男性休跑者 (n=18) 和不那么活跃的对照 (n=15).
- 阻力炼方案包括,腿压和腿伸展在一个重复最大的80% (1RM),并收集血液超过72小时.
主要成果:
- PTGES2和ALOX15基因表达和5-和15-HETE水平在跑者中随着时间的推移发生了显著变化,但在对照人群中没有变化.
- 在两组中,18-HEPE水平都发生了变化,而17-HDHA在跑步者中显示出了边界变化.
- 这些发现表明,基于运动史,脂质介质的时间反应差异.
结论:
- 休跑步者在强度抵抗运动后表现出更快速和更强大的反应,无论是促进炎症还是解决炎症的脂质介质.
- 跑步者的这种增强反应可能归因于他们的定期训练.
- 这项研究表明,定期炼可以调节急性脂质介质对不习惯的艰苦炼的反应.
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