与食欲调节激素对运动反应的年龄相关差异
Christoph Höchsmann1, Hyeon Jung Heselton2, Safiya E Beckford3
1Department of Health and Sport Sciences, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany.
急性炼对年轻人和老年人的食欲激素的影响不同. 虽然氨酸氨酸 (PYY) 反应随年龄而变化,但GLP-1和 ghrelin并没有,主观饥饿或腹也没有.
科学领域:
- 运动生理学 运动生理学
- 内分泌学 在内分泌学.
- 老年学是一门学科.
背景情况:
- 剧烈的运动会影响食欲调节的激素,包括氨酸氨酸 (PYY),类似葡萄糖-1 (GLP-1) 和 ghrelin,影响食欲和食物摄入.
- 虽然运动对饥饿和腹的影响已知因人体构成,性别和身体活动而异,但衰老的影响仍然不太了解.
研究的目的:
- 为了研究食欲调节激素对急性运动反应的年龄相关差异.
- 为了比较中等强度运动对PYY,GLP-1和格林林水平在年轻人和老年人之间的影响.
主要方法:
- 两个年龄组 (年轻的成年人:19-29岁;年长的成年人:65-75岁) 参加了随机的运动和休息条件.
- 参与者进行了45分钟的骑自行车运动 (60%V·O2峰值) 或坐着休息,并采集血液样本进行激素分析 (PYY3-36,GLP-1,乙烯酸 ghrelin) 和主观食欲评分.
主要成果:
- 运动增加PYY3-36更多的年轻人比老年人 (P=0.025).
- 总体而言,老年人GLP-1水平较高,但运动诱导的GLP-1反应与年龄没有差异.
- 对酸格林和主观食欲感知的运动反应没有显示出与年龄相关的显著差异.
结论:
- 剧烈的中等强度运动会引起与年龄相关的PYY3-36反应差异,但不是GLP-1或乙烯酸 ghrelin.
- 这些荷尔蒙变化并没有导致年轻人和老年人之间感知到的饥饿或腹的显著差异.
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