BACKGROUND: This study aimed to examine the effect of a 12-week progressive trunk resistance and stretching exercise program on fall-related factors in patients with Parkinson's disease (PD). METHODS: A randomized study assessed a progressive trunk resistance and stretching exercise program over a 12-week period. A total of 17 patients with PD participated and were randomly allocated into an exercise group (n = 10) or a control group (n = 7). Participants in the exercise group completed the exercise program in 60- to 90-min sessions for three days per week. Primary and secondary outcome measures included the trunk mobility scale, functional fitness test, standing balance, and sit-to-walk test. RESULTS: The exercise group showed improvements in functional fitness, trunk mobility, standing balance, and dynamic stability compared with the control group (all p < 0.05). The 2.44 m timed up and go test (odds ratio (OR) 0.125) and the 2 min step test (OR 10.584) of the functional fitness test, and the first-step length (OR 3.558) and first-toe clearance height (OR 4.777) of the sit-to-walk test, were different between the groups following the exercise program. CONCLUSION: This 12-week exercise program improved fall-related factors in patients with PD and may lead to prevention of fall-related injuries.

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