测定皮质,皮质脊柱和视网脊柱对计量器节奏和自我节奏力量训练的反应
Yonas Akalu1,2, Jamie Tallent1,3, Ashlyn K Frazer1
1Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University Exercise Neuroplasticity Research Unit, Monash University, PO Box 527, Frankston, Melbourne, VIC, 3199, Australia.
测量器节奏阻力训练 (RT) 提高皮质脊髓刺激能力,有助于从神经损伤中恢复. 这对运动员和寻求更强壮的老年人有好处.
科学领域:
- 神经科学
- 运动生理学
背景情况:
- 抵抗训练 (RT) 对皮质脊髓和视网脊髓路径的急性神经生理影响尚未完全理解.
- 研究不同RT模式可以阐明它们对神经通路的具体影响.
研究的目的:
- 检查计量器节奏RT (MP-RT) 和自节奏RT (SP-RT) 如何影响皮质脊髓和视网脊髓刺激.
- 将MP-RT,SP-RT和对照组之间的神经生理反应进行比较.
主要方法:
- 三十六名RT- naive参与者被随机分为MP- RT,SP- RT或对照组.
- 通过跨磁刺激 (TMS) 评估皮质,皮质脊柱和皮质- 脊网反应.
- 通过惊刺激对力量发育速度 (RFD) 的影响来测量视网脊道 (RST) 的刺激性.
主要成果:
- MP-RT显著增加皮质脊髓刺激性和减少皮质静止期 (cSP) 和短间隔皮质抑制 (SICI).
- SP-RT降低了cSP并增加了ipsilateral到contralateral电机唤起的潜在幅度比 (ICAR).
- 在惊刺激下,SP-RT还增强了RFD,表明视网脊髓功能有所改善.
结论:
- MP-RT增强了皮层内和皮层脊髓刺激能力,可能有助于皮层脊髓损伤的康复.
- SP-RT改善皮质网状和网状脊髓刺激能力,有利于运动员和老年人提高总体力量.
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