急性强度运动降低后来的不运动 身体活动和体温与体重增加有关
Daisuke Funabashi, Shohei Dobashi1, Kazuki Sameshima1
1Exercise Biochemistry & Sport Neurobiology Division, Institute of Health and Sport Sciences, University of Tsukuba, Ibaraki, JAPAN.
剧烈的运动可能会通过降低非运动性体力活动和体温来阻碍减肥,这可能与被破坏的皮质激素节律有关. 这表明运动强度显著影响整体能量平衡和健康结果.
科学领域:
- 运动生理学 运动生理学
- 代谢调节 代谢调节 代谢调节
- 循环节生物学 日间生物
背景情况:
- 众所周知,运动有益于身体和精神健康,但其对减肥的影响往往小于预期.
- 减轻减肥效应的假设是由于运动强度依赖于非运动体育活动 (NEPA) 的减少和随后的热生成.
- 运动强度对NEPA和总体能源支出的确切机制和影响尚不清楚.
研究的目的:
- 研究急性强度运动对后来的非运动身体活动 (NEPA) 和体温 (BT) 的影响.
- 探索运动强度,NEPA,BT和体重变化之间的关系.
- 阐明潜在的机制,包括皮质和昼夜节律的作用.
主要方法:
- 成年雄性C57BL/6J小鼠被分为久坐,中度炼和剧烈炼组.
- 小鼠接受了30分钟的跑步机训练,在运动前2天和运动后3天内使用植入式活动监测器监测NEPA和BT.
- 运动后测量了血皮质水平,并分析了NEPA和BT之间的每日同步.
主要成果:
- 剧烈的运动导致随后的NEPA和BT显著减少,导致第二天体重增加,而食物摄入量没有变化.
- 剧烈的运动导致了与BT相比,NEPA的日常动态明显延迟.
- 在所有运动组中,在血皮质水平和NEPA变化之间发现了正相关性.
结论:
- 剧烈的运动可以特别减少随后的NEPA和BT,扰乱它们的同步,导致体重增加,可能是因昼夜皮质丸激素节律受到干扰而引起的.
- 这项研究强调了运动强度在调节NEPA和能源平衡方面发挥的关键作用,超出了运动过程中直接的能源支出.
- 这些发现重新定义了运动强度在实现有益健康效果方面的重要性,特别是在体重管理方面.
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