Boxing vs Sensory Exercise for Parkinson's Disease: A Double-Blinded Randomized Controlled Trial.
Kishoree Sangarapillai, Benjamin M Norman, Quincy J Almeida
PMID 34121511WHAT IT FOUND
Sensory exercise improved Parkinson's motor symptoms and gait, with benefits lasting after the program stopped.
Boxing worsened motor scores during the same period. Both groups reported better quality of life, but only sensory exercise showed objective clinical improvement that persisted.
Key findings
01The sensory exercise group showed greater improvement in motor symptom severity than the boxing group at both post-intervention and washout assessments.
02Motor symptoms in the boxing group worsened compared to baseline at both post-intervention and washout.
03Sensory exercise improved stride length and velocity, with gains maintained at washout, while boxing showed no significant stride length change and decreased velocity.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
The boxing group's motor symptoms worsened, which contrasts with some previous literature, possibly due to unquantified exercise intensity (self-perceived exertion vs. heart rate monitoring). One author designed the PD SAFEx intervention, though they were blinded to allocation and no financial conflict was declared. The study used a specific boxing protocol (Rock Steady Boxing) which may not generalize to all boxing programs. Quality of life improvements were seen in both groups, including the boxing group which had worsening motor scores, indicating subjective well-being may not track with objective motor severity.
Declared interests
One author was the lead boxing instructor and certified RSB instructor. Another author designed the PD SAFEx intervention (trademark pending), but the paper states there is no financial relationship or gain associated with either program. No external funding was received.
The easy way to misread this
Do not conclude that boxing is ineffective for Parkinson's based solely on this study. The worsening motor scores in the boxing group may be due to the specific protocol used or lack of objective intensity monitoring (heart rate), rather than boxing itself being harmful. The sensory exercise group's sustained benefit is the key finding.