The effects of knee joint angle on neuromuscular activity during electrostimulation in healthy older adults:

Journal of Rehabilitation and Assistive Technologies Engineering

James PGavin¹ 

关键词: Electrical stimulation;    knee joint;    electromyography;    gastrocnemius;    isometric contraction;    peroneal nerve;   

DOI  :  10.1177/2055668318779506

学科分类：工程和技术（综合）

来源: Sage Journals

【 摘 要 】

IntroductionElectrostimulation devices stimulate the common peroneal nerve, producing a calf muscle-pump action to promote venous circulation. Whether knee joint angle influences calf neuromuscular activity remains unclear. Our aim was to determine the effects of knee joint angle on lower limb neuromuscular activity during electrostimulation.MethodsFifteen healthy, older adults underwent 60 min of electrostimulation, with the knee joint at three different angles (0°, 45° or 90° flexion; random order; 20 min each). Outcome variables included electromyography of the peroneus longus, tibialis anterior and gastrocnemius medialis and lateralis and discomfort.ResultsKnee angle did not influence tibialis anterior and peroneus longus neuromuscular activity during electrostimulation. Neuromuscular activity was greater in the gastrocnemius medialis (p = 0.002) and lateralis (p = 0.002) at 90°, than 0° knee angle. Electrostimulation intensity was positively related to neuromuscular activity for each muscle, with a k...

【 授权许可】

CC BY