Does More Therapy Mean Better Recovery? What the Dose Evidence Really Shows

More therapy tends to help recovery, but the benefit is modest, the certainty of the evidence is low, and the dose-response is non-linear: more is not automatically better, and one particular high dose was actively harmful. Intensity matters, yet the honest headline is that timing, type and tolerance matter as much as raw hours, and the clearest evidence that “more and sooner” can backfire comes from a very early mobilisation trial that made outcomes worse¹.

I spent my first weeks of rehab convinced that if I just did more, I would recover faster, and I pushed myself until I was too wiped out to do the session that actually mattered the next morning. It took an honest physiotherapist to tell me that the point was not to fill the day, it was to do the right practice well and still have something left. This is the plain version of what the evidence says, and it sits under the pillar on neuro-rehabilitation; for the baseline numbers see how much therapy do you need.

Does more therapy mean better recovery?

Higher intensity does help motor impairment, but the effect is modest and the certainty of the evidence is low, so more is not always better. Cochrane reviews of the amount of physical rehabilitation find that greater practice can improve movement and activity, while cautioning that the size of the benefit is small and the quality of the underlying trials is limited². That is a real signal, not a licence to stack hours without limit.

It matters because “more is better” is intuitive and almost always the assumption when people first arrive in rehab, including me. The truthful framing is that dose sits inside a system of timing, type of practice and personal tolerance, which is why the whole approach is goal-driven rather than hours-driven, and why the recovery plateau is partly about when therapy is withdrawn rather than a fixed ceiling.

What did the AVERT trial show about too much, too soon?

A very early, prolonged, high-dose out-of-bed mobilisation regimen started within 24 hours of stroke was harmful in the AVERT trial: 46% of that group had a favourable outcome versus 50% with usual care. This is the single clearest example that the dose-response is non-linear, and that pushing more and sooner can make results worse rather than better¹. The intuition that getting up and going hard immediately must help was tested at scale, and it failed.

AVERT does not mean early rehabilitation is bad; organised, timely stroke-unit care remains one of the strongest interventions we have, adding about 2 extra survivors and 6 more people living at home per 100 at one year². What it means is that the specific combination of very early, very intensive, prolonged mobilisation was the wrong dose at the wrong moment. It reshaped how the first days are handled, which is part of why inpatient rehabilitation is paced rather than maximal from hour one.

Then how much therapy is actually recommended?

Guidelines converge on at least 3 hours of therapy a day, on at least 5 days out of 7, for people with rehabilitation goals who can tolerate it, with support to stay active for up to 6 hours a day. NICE and the Royal College of Physicians both anchor to this benchmark, counting therapist contact plus practice and general activity, and the US inpatient “3-hour rule” of about 15 hours a week uses the same figure³⁴. It is a sensible target for the people it fits, not a universal law.

The reason this coexists with the AVERT warning is that the recommended dose is delivered to medically stable people with goals, over the subacute weeks and months, not as a maximal push in the first day. Type matters too: task-specific training and repetitive practice are where intensity earns its keep, improving walking distance by about 35 metres in trials, while having only a small effect on arm function⁵. Hours spent on the wrong practice do not become recovery.

Why does doubling the hours not double the recovery?

Because the dose-response is non-linear: gains do not scale neatly with hours, and beyond a point extra time mainly adds fatigue rather than function. Higher intensity helps motor impairment modestly, but the marginal return falls, and the certainty of even that modest benefit is low². This is why I learned the hard way that a punishing morning could cost me the useful session in the afternoon.

Tolerance is the ceiling that most people meet first. NICE explicitly notes that some people cannot manage 3 hours a day and should get an adjusted, lower amount, which is realistic given that fatigue is pooled at around 50% after stroke and higher beyond 6 months³. Managing post-stroke fatigue is not separate from getting the dose right; it is part of it. A dose you can complete beats a target that flattens you.

So what should this mean for my own programme?

It means aiming for a sensible, tolerable intensity built around the right practice, reviewed with your team, rather than chasing the highest possible number of hours. The evidence supports meeting a good dose for those who can manage it, warns against very early prolonged high-dose mobilisation, and leaves the exact amount to a team who can assess you⁴. What any individual needs is a clinical judgement, not a slogan.

This is also the honest answer to why rehabilitation abroad or intensive private programmes advertise more hours: many home systems deliver less than the benchmark, so more can close a real gap for people who tolerate it, and that is a different claim from “more is always better”. If you are weighing a programme, judge it on hours of genuine hands-on therapy, who leads it and the follow-up, which is set out in choosing a neuro-rehabilitation programme.