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饮食中更高的甲基供体微量营养素消费与成年人肌肉强度更高有关:一个横截面研究

Amin Mirrafiei¹, Parisa Radkhah², Mahla Chambari³

¹Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran.

The British journal of nutrition

|March 5, 2024

概括

饮食中摄入更多的甲基供体微量营养素,包括B族维生素,与改善肌肉力量有关. 这表明富含这些营养素的食物可以支持更好的身体表现.

科学领域:

营养科学营养科学
生物化学生物化学
运动生理学运动生理学

背景情况:

甲基供体微量营养素在DNA甲基化中起作用,这可能会影响肌肉力量.
了解食甲基捐赠者与肌肉功能之间的关系对于公共健康至关重要.

研究的目的:

研究饮食中的甲基供体微量营养素 (贝他因,胆,氨酸,维生素B12,维生素B6,叶酸) 与肌肉力量的结合关系.
为了确定这些微量营养素的更高摄入量是否与手握强度的提高有关.

主要方法:

一项涉及267名参与者 (113名男性,154名女性) 的横截面研究.
饮食摄入量使用168项的半定量食品频率问卷 (FFQ) 进行评估.
通过数字手柄动力计测量肌肉力量;使用线性回归分析数据.

主要成果:

在总体甲基供体摄入量和平均肌肉强度 (P=0.04) 之间发现了显著的积极关联.
虽然没有观察到左手强度的显著联系,但右手强度显示出显著的积极关联 (P=0.03).
较高的甲基捐赠微量营养素评分 (MDMS) 与肌肉强度有积极的关系,在调整了混因素后.

结论:

增加饮食中甲基供体微量营养素的摄入量与增强的肌肉力量有关.
营养学家可能会建议富含甲基供体的食物,如谷物,坚果,乳制品和海鲜,以支持肌肉健康.
需要进一步的前性研究来证实这些发现并阐明涉及的机制.

关键词:

维生素B 维生素B 维生素B 贝他因 (betaine) 是一种维生素.胆胆是一种甲氨酸 (Methionine) 是一种氨酸.甲基捐赠者甲基捐赠者肌肉力量肌肉力量是指肌肉的力量.

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