宪法性瘦身可能以生理上适应而不是受损的肌肉功能和结构为特征:来自NUTRILEAN研究的新结果
Mélina Bailly1, Duane Beraud1, Céline Lambert2
1Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), Université Clermont Auvergne, CRNH, 63000, Clermont-Ferrand, France.
European journal of applied physiology
|June 20, 2024
概括
构成性瘦身 (CT) 与较低的肌肉质量和力量有关. 然而,将力量正常化为肌肉质量是与正常体重个体相比较的,这表明适应性而不是内在损伤.
科学领域:
- 运动生理学 运动生理学
- 人类解剖学 人类解剖学
- 身体构成研究 身体构成研究
背景情况:
- 宪法瘦身 (CT) 具有非典型的肌肉质量和骨肌肉纤维表型.
- 之前的研究还没有探索CT患者的力量生产能力和建筑决定因素.
研究的目的:
- 为了比较CT妇女与正常体重 (NW) 妇女之间的肌肉功能和结构.
- 研究CT肌肉质量,结构和功能能力之间的关系.
主要方法:
- 18名CT妇女和17名NW妇女接受了人体测量,身体组成分析 (DXA) 和体力活动监测.
- 使用2D超声波评估了Vastus lateralis肌肉结构.
- 使用异构动力仪测量最大异构和异构动力学自愿收缩 (MVC).
主要成果:
- 接受CT的参与者具有较低的无脂肪质量和较长的久坐时间.
- 绝对最大自发收缩 (MVC),扭矩发展速度 (RTD) 和扭矩工作在CT中较低,但与NW个体相似地正常化.
- 在CT中,肌肉厚度和带长度都减少了,而角仍然相似.
结论:
- 在CT中较低的绝对强度似乎是适应较低的肌肉质量,而不是内在的收缩障碍.
- 研究结果表明,针对过度缩的策略可能有利于管理CT.
- 需要进一步的研究来探索这些干预措施.
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