在1型糖尿病中,膝盖延伸器运动期间的外周疲劳调节和对力-持续关系的影响
Nadia Fekih1, Firas Zghal2, Amal Machfer1
1Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education, University of Sfax, Road of the Aerodrome, Km 3.5, BP 1068, 3000, Sfax, Tunisia.
European journal of applied physiology
|September 21, 2023
概括
1型糖尿病患者在膝盖延伸器运动期间调节周围疲劳,以保持关键值,限制他们的工作能力 (W'). 这种个体值可以防止过度疲劳.
科学领域:
- 运动生理学 运动生理学
- 代谢障碍 代谢障碍 代谢障碍
- 神经肌肉功能 神经肌肉功能
背景情况:
- 1型糖尿病 (T1D) 可以影响神经肌肉功能和运动能力.
- 了解T1D中疲劳机制对于优化身体活动和健康结果至关重要.
- 力量与持续时间的关系和疲劳的临界值在T1D个体中尚未得到充分确立.
研究的目的:
- 调查T1D患者在膝盖延伸器 (KE) 运动中是否调整周围疲劳,以避免超过关键值.
- 确定这种疲劳调节对T1D患者强度-持续时间关系的后果.
主要方法:
- 11名T1D患者在两个条件下进行了60次最大自愿收缩 (MVC):控制 (CTRL) 和疲劳神经肌肉刺激 (FNMES) 后.
- 通过四头肌自愿激活 (ΔVA) 和潜在抽 (ΔPtw) 的变化来评估周围和中心疲劳.
- 计算了临界扭矩 (CT) 和超过CT (W') 的工作能力,以分析力-持续时间关系.
主要成果:
- 尽管在FNMES条件下运动前疲劳,但在CTRL和FNMES之间,运动后的ΔVA,ΔPtw和CT是相似的.
- 减少W'与FNMES诱导的疲劳前水平相关.
- W'还与CTRL期间潜在抽 (ΔPtw) 的减少相关.
结论:
- 在T1D患者中,外周疲劳调节似乎受到个体关键值的限制,这影响了工作能力 (W').
- 这些发现表明T1D个体的保护机制,以防止在持续的收缩期间过度的外周疲劳.
- 了解这些疲劳调节策略对于T1D的运动处方很重要.
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