Controlled pilot study of the effects of power yoga in Parkinson's disease

Abstract

Objectives: To evaluate the effects of a specially designed power yoga program (YOGA) on bradykinesia, rigidity, muscular performance and quality of life in older patients with PD.

Design: Randomized controlled trial.

Setting: University laboratory, US.

Intervention: Twenty-six patients with mild to moderate PD were randomly assigned to a YOGA or control group (CON). The YOGA program was three months, incorporating two sessions/wk of yoga classes.

Main outcome measures: Upper and lower limb bradykinesia and rigidity scores from the Unified Parkinson's Disease Rating Scale, one repetition maximums (1RM) and peak powers on biceps curl, chest press, leg press, hip abduction and seated calf, and quality of life (PDQ-39).

Results: The YOGA group produced significant improvement in both upper and lower limbs bradykinesia scores, rigidity score, 1RM for all 5 machines and leg press power (p<.05). Significant improvements were seen in the PDQ-39 overall score, mobility and activities of daily living domain for the YOGA group.

Conclusion: The 3-month YOGA program significantly reduced bradykinesia and rigidity, and increased muscle strength and power in older patients with PD. Power training is an effective training modality to improve physical function and quality of life for PD.

Keywords: Movement speed; Power; Quality of life; Rigidity; Strength.