Effects of physical therapy modalities for motor function, functional recovery, and post-stroke complications in patients with severe stroke: a systematic review update.

Severe stroke often leaves people with substantial motor and functional loss, and physical therapy is a routine part of hospital and rehabilitation care, but exactly which approaches, and how much of them, actually help has remained unclear. This review updates an earlier 2020 systematic review to look specifically at physical therapy interventions and their modalities, such as duration, intensity, and frequency, across the different phases of stroke recovery. After adding 15 new studies to the original set, the authors ended up with 30 trials covering over 2500 participants, testing 20 different physical therapy interventions across 54 outcomes. The overall picture was uncertain: evidence quality was rated moderate to low, most studies carried a high risk of bias, and many were too small to draw firm conclusions.

Reporting of standard care and therapy modalities was also sparse. The result is conflicting evidence about whether specific physical therapy approaches meaningfully improve recovery after severe stroke, and a clear gap for better-designed, more detailed future research.

If you or someone you know has been through a severe stroke, physical therapy is almost always part of the recovery plan in hospital or rehabilitation. This review asked a simple but important question: does the research actually show which types, amounts, or timing of physical therapy help most during recovery? The researchers gathered 30 studies involving more than 2500 people, testing 20 different physical therapy approaches.

Rather than finding a clear answer, they found the evidence was inconsistent and generally not very strong. Many studies had design problems that make their results less trustworthy, and were often too small to be confident in what they found.

Details about the usual care people received, and exactly how much therapy they got, were often missing too. This doesn't mean physical therapy doesn't help. It means the current science can't reliably tell us which specific approaches, doses, or timing work best after severe stroke.

More carefully designed studies that clearly report what therapy was actually given are needed before firmer conclusions can be drawn.

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

For clinicians managing patients recovering from severe stroke, a recurring practical question is which physical therapy interventions, and at what dose or intensity, are best supported by evidence across the acute through chronic phases. This update to a 2020 systematic review addresses that question directly by adding 15 new studies to the existing evidence base, bringing the total to 30 randomized controlled trials and 2545 participants, spanning hyperacute through chronic recovery phases and evaluating 20 distinct physical therapy interventions across 54 reported outcomes. The synthesis, conducted narratively rather than through pooled meta-analysis, found an uncertain effect of physical therapy on outcomes, with evidence rated moderate to low quality.

Most included studies showed high risk of bias per the Cochrane risk-of-bias tool 2.0, and did not reach optimal sample sizes, limiting confidence in any individual result. A notable gap was the sparse reporting of standard care details and therapy modalities themselves, meaning even when trials showed effects, it is often unclear what dose, frequency, or intensity actually drove them. The main takeaway for practice is not a specific intervention recommendation but a caution: the current evidence base, despite spanning 30 trials, remains too heterogeneous and methodologically limited to support confident conclusions about which physical therapy modalities are most effective for severe stroke recovery.