Electromechanical changes during electrically induced and maximal voluntary contractions: Surface and intramuscular EMG responses during sustained maximal voluntary contraction

• Published in: Experimental neurology Vol. 88; no. 3; pp. 484 - 499
• Main Authors: Moritani, T., Muro, M., Kijima, A., Gaffney, F.A., Parsons, D.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Inc 01.06.1985; Elsevier
• Subjects: Biological and medical sciences; Biomechanical Phenomena; Electric Stimulation; Electromyography; Electrophysiology - instrumentation; Fundamental and applied biological sciences. Psychology; Humans; Male; Motor Neurons - physiology; Muscle Contraction; Muscles - physiology; Neuromuscular Junction - physiology; Striated muscle. Tendons; Synaptic Transmission; Time Factors; Vertebrates: osteoarticular system, musculoskeletal system; MU; MPF; rmsEMG; MVC; Human; Voluntary control; Electrical stimulus; Fatigue; Electromyography; Striated muscle; Muscle contraction

Changes in the electrical activity of the human gastrocnemius and soleus muscles during fatiguing maximal plantar flexions were studied with computer-aided EMG frequency power spectral analysis and intramuscular spike amplitude-frequency histogram analysis. In some experiments, brief supramaximal ne...