Physical exercise for people with Parkinson's disease: a systematic review and network meta-analysis.

This Cochrane review and network meta-analysis asked which types of physical exercise help people with Parkinson's disease most, comparing effects on motor symptom severity, quality of life, and adverse events. Researchers pooled 154 randomized controlled trials with 7837 participants, mostly people with mild to moderate disease and no major cognitive impairment. The motor signs analysis drew on 60 studies (2721 participants) and the quality of life analysis on 48 studies (3029 participants). Most exercise types showed some benefit compared to inactive control groups, with dance and gait/balance/functional training showing moderate improvements in motor signs, and aqua-based training showing the largest improvement in quality of life.

Confidence in these estimates ranged from moderate to very low depending on the exercise type. Across outcomes, there was little evidence of meaningful differences between the various exercise types themselves, and safety data were inconsistently reported across studies, so the effect of exercise on adverse event risk remains very uncertain.

If you or someone you know has Parkinson's disease and wonders which type of exercise might help most, this review looked at that question by combining results from 154 studies involving 7837 participants total, most with mild to moderate disease and no major memory or thinking problems. The researchers compared many exercise types, including dance, gait and balance training, strength training, water-based exercise, and mind-body practices like tai chi or yoga. Most exercise types were linked to improvements in motor symptoms or quality of life compared to not exercising, with dance and gait/balance training showing the clearest motor benefits and water-based exercise showing the largest quality of life benefit.

However, the confidence in these findings varied a lot, from moderate to very low depending on the exercise type, and there wasn't strong evidence that any one type worked clearly better than the others. Information about side effects like falls or pain wasn't consistently collected across studies, so how safe different exercise types are compared to each other remains unclear.

This is a summary of research, not medical advice. Talk to your own healthcare provider about anything affecting your care.

This Cochrane network meta-analysis synthesized 154 RCTs (7837 participants, mostly mild to moderate PD without major cognitive impairment) comparing exercise types for motor severity (UPDRS-M), quality of life (PDQ-39), freezing of gait, and functional mobility/balance. The motor signs NMA (60 studies, 2721 participants) found moderate-confidence evidence for moderate effects from dance and gait/balance/functional training, and moderate-confidence evidence for a small effect from multi-domain training, with low-confidence, smaller effects for endurance, aqua-based, strength/resistance, and mind-body training.

Evidence for LSVT BIG and flexibility training was very low confidence and uncertain.```) For quality of life (48 studies, 3029 participants), aqua-based training showed a moderate-confidence large effect, while mind-body, gait/balance/functional, and multi-domain training and dance showed low-confidence small effects. Gaming, strength/resistance, endurance, and flexibility training effects were very low confidence.

Notably, the authors report little evidence of differences between exercise types themselves, suggesting the choice of modality may be secondary to simply exercising, though PD-specific programs may still address particular symptoms. Adverse event reporting was inconsistent across only 85 studies, mostly intervention-arm only, yielding very low confidence about comparative safety.

Larger, well-conducted trials including more advanced or cognitively impaired populations are needed.