Prescribing strength training for stroke recovery: a systematic review and meta-analysis of randomised controlled trials.

After a stroke, many people struggle with weakness, balance, and walking, and strength training is often suggested as part of recovery, but how it should be prescribed has been unclear. This systematic review and meta-analysis pooled results from 42 randomised controlled trials involving 2204 participants to see whether strength training, compared with no exercise or usual care, improves outcomes that stroke survivors themselves consider important, and whether specific ways of prescribing it matter. The pooled results showed improvements in walking capacity, balance, functional ability and mobility, and both habitual and fast-paced walking speed. Training done more frequently, using traditional strength programme designs, and emphasizing faster movement velocity appeared linked to better outcomes for walking capacity, quality of life, and fast-paced walking speed.

However, the certainty of this evidence ranged from very low to moderate, and overall risk of bias across the included trials was high, meaning these findings should be interpreted cautiously rather than as settled guidance.

If you or someone you know is recovering from a stroke, you may have heard that strength training can help with regaining movement. This review looked at a large collection of past studies, 42 trials involving over 2000 people, comparing strength training against no exercise or usual stroke care, to see if it helps with things that matter most to people recovering from stroke, like walking, balance, and everyday functioning. The combined findings suggest that strength training was associated with improvements in walking distance, balance, functional mobility, and walking speed compared with not doing this training.

Certain ways of doing the training, like doing it more often, following more traditional strength routines, and focusing on faster movements, seemed connected to better results. That said, the studies included had notable weaknesses in how they were designed, which lowers confidence in exactly how strong or reliable these benefits are.

This means the results are encouraging but not conclusive, and more rigorous research would help clarify how much benefit to expect and for whom.

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

This review addresses a practical prescription question for stroke rehabilitation: does strength training improve outcomes patients themselves prioritise, and do specific programming choices, such as frequency, intensity, or velocity emphasis, influence those effects? Drawing on 42 randomised controlled trials totalling 2204 participants, and informed by a community advisory group with lived stroke experience to identify which outcomes mattered most, the review found that strength training compared with no exercise or usual care improved walking capacity (SMD 0.95), balance (SMD 1.13), functional ability and mobility (SMD 0.61), and both habitual (MD 0.05 m/s) and fast-paced walking speed (MD 0.09 m/s). Exploratory analyses associated more frequent training, traditional strength programme structures, and power-focused intensities emphasising movement velocity with larger effects on walking capacity, quality of life, and fast-paced walking speed, offering some direction for how prescription choices might matter, though these are secondary, hypothesis-generating comparisons rather than confirmed causal relationships. Critically, certainty of evidence ranged from very low to moderate across outcomes, driven mainly by risk of bias and inconsistency between trials. This tempers how confidently the pooled effect sizes should be applied to individual clinical decisions, and underscores that while strength training shows a consistent direction of benefit across trials, the specific prescription parameters most likely to optimise recovery remain provisional rather than established.