The Influence of Parkinson's Disease Symptoms on Repetitive Toe Tapping at High and Low Frequencies.
People with Parkinson's Disease have impairments in repetitive movement. However, no one has quantified repetitive toe-tapping performance at different rates in persons with PD. Position of the toe and EMG of the tibialias anterior and gastrocnemius were collected while participants tapped at 70 beats per minute and 140 beats per minute. Results revealed that participants had greater impairment at the higher rate. The results of this data will inform future studies on the impact of impairments in repetitive movements on larger motor tasks such as gait.