Eur J Appl Physiol 2021 Apr 23;121(4):1145-1157. Epub 2021 Jan 23.
Neuromuscular Plasticity Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, 12805 Pegasus Drive, HS 1, Room 258, Orlando, FL, 32816-2205, USA.
Purpose: The ability to maintain an absolute, submaximal torque level during fatiguing contractions is controlled, in part, by the recruitment of larger motor units. These motor units are commonly identified based on greater action potential peak-to-peak amplitude values. It is unclear, however, if motor unit action potential (MUAP) amplitude values during low torque, fatiguing contractions reach similar levels as those observed during non-fatigued, high torque contractions. Read More