Dopaminergic Medication Improves Force Control and Modifies Motor Unit Activity During the Steadiest and Least Steady Periods in Parkinsons Disease
Parkinsons disease (PD) impairs steady force production, but how dopaminergic medication alters force control and the motor unit (MU) activity is unclear. This study examined force steadiness and biceps brachii MU behavior in 16 people with PD ON and OFF dopaminergic medication. Participants performed sustained isometric elbow flexion contractions at 5%, 10%, 15%, and 25% of maximum voluntary…
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