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在神经肌肉电刺激后,老年人和年轻人之间对脊柱刺激的急性反应的比较

Martina Scalia¹, Martina Parrella², Riccardo Borzuola²

¹Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy. m.scalia@studenti.uniroma4.it.

European journal of applied physiology

|July 31, 2023

概括

与年轻人相比,老年人经过神经肌肉电刺激 (NMES) 与自愿收缩相结合后,表现出调节脊柱刺激能力的能力降低. 这表明神经控制机制与年龄相关的变化.

科学领域:

神经科学是一个神经科学.
老年学是指老年学的学科.
运动生理学运动生理学

背景情况:

脊柱刺激能力是运动控制的关键因素,可以通过各种物理干预来影响.
了解与年龄相关的神经对运动反应的差异对于优化老年人身体功能至关重要.

研究的目的:

为了比较年长和年轻成年人之间通过H-反射测量脊柱刺激能力的急性变化.
研究神经肌肉电刺激 (NMES) 与自愿收缩 (NMES+),被动NMES (pNMES) 和单独自愿收缩 (ISO) 结合后的反应.

主要方法:

32名参与者 (16名老年人,16名年轻人) 在最大自愿同位数收缩 (MVIC) 的20%时进行了同位数脚脚下柔器收缩.
测试了三个条件:NMES+,pNMES和ISO,每个条件都涉及15次重复的6秒收缩和6秒休息.
在每个条件之前和之后,通过后神经刺激和表面EMG记录了Soleus H-反射幅度.

主要成果:

在任何条件 (ISO,pNMES,NMES+) 之后,老年人没有显示出H反射幅度的显著变化.
年轻成年人在NMES+ (p < 0.000) 后显著增加H反射幅度,在pNMES (p = 0.001) 后显著降低.
在ISO (p = 0.772) 之后,在年轻成年人中没有观察到H反射的显著变化.

结论:

在基于NMES的干预措施后,老年人可能对调节脊柱刺激能力的能力下降.
预突触控制机制的与年龄相关的变化被认为是观察到的差异的潜在原因.
这些发现突出了对神经肌肉电刺激的潜在年龄特异性反应.

关键词:

这是一种H反射.在NMES中使用NMES.年龄较大的个人.索莱乌斯 (Soleus) 是一个阳光.脊柱刺激性脊柱刺激性

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