Effects of fatigue on intramuscle force-stabilizing synergies

• Published in: Journal of applied physiology (1985) Vol. 135; no. 5; pp. 1023 - 1035
• Main Authors: Ricotta, Joseph M., De, Sayan D., Nardon, Mauro, Benamati, Anna, Latash, Mark L.
• Format: Journal Article
• Language: English
• Published: Bethesda American Physiological Society 01.11.2023
• Subjects: Ankle; Electromyography; Fatigue; Isometric; Motor units; Principal components analysis; Variance analysis

Across multielement force production tasks, fatigue of an element leads to increased indexes of force stability (synergy indexes). Here, however, we show that groups of motor units in the tibialis anterior show decreased indexes of force-stabilizing synergies after fatiguing exercise. These findings...