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How to Return to Training After Injury

Cameron Usher · Founder, PX

25 August 2026 · 6 min read

12 years in competitive sport; trained alongside the Australian Olympic squad; coached 100+ people one-on-one.

This guide covers training structure during a return from injury. It is not medical advice. Clearance to return, and the boundaries of what is safe for your specific injury, belong to your physiotherapist or doctor; everything below assumes you have them.

There are two ways to fail a comeback from injury, and almost everyone picks one.

The first is coming back too fast: cleared on Tuesday, old plan on Wednesday, re-injured within the month, and this time the setback has scar tissue on it, psychological as much as physical. The second is quieter and costs more in total: coming back so cautiously, so hedged, that months pass in a limbo of half-training, waiting for a feeling of complete safety that injuries do not grant, losing fitness, confidence and identity the whole time.

Between the two failures runs a narrow, well-marked road. The marks are not secrets; they are the working rules of return-to-play practice, and they are numbers, not vibes. How to return to training after injury comes down to three of them, plus a system for policing yourself, which is the part that actually fails.

Before anything: the two clearances

A return has two gates, and people routinely take the first as if it were both.

Medical clearance says the tissue is healed enough to load. It is the non-negotiable gate, it belongs to your clinician, and nothing in this post substitutes for it.

Training clearance is the one nobody issues formally: is the rest of you ready to absorb training again? Weeks of protecting one body part means weeks of detraining everywhere else, disturbed sleep, and often a body that has been compensating in ways that created their own tightness and weakness. Cleared to load the ankle is not the same as ready to resume the plan. The comeback plan has to serve the whole system, which by now includes everything covered in getting back into training after a break, because an injury layoff is a layoff plus a restriction.

The three numbers

Restart at 60 to 80 percent of pre-injury volume, and for injury, live at the bottom of that range. The ordinary time-off rule leans toward 80; the injury version starts at 60, because the deconditioning is uneven in a way plain time off is not. The uninjured systems kept some fitness. The injured area and everything that compensated for it did not, and the gap between what your engine can do and what the healing tissue can tolerate is precisely the mechanism of re-injury. Sixty percent feels frustratingly low on the days you feel good. Those days are the trap. Feeling good is your cardiovascular system talking; the tissue that got hurt does not have a voice until it is already unhappy.

Progress at roughly 10 percent a week, and never two jumps at once. Volume this week, or intensity, or a new movement pattern, one variable at a time, around ten percent at a time. The deeper principle behind the rule of thumb is well supported even where the exact arithmetic is debated: injury risk clusters around spikes, where this week's load jumps far above what the recent weeks prepared the body for, which is why load-management research focuses on the ratio of recent load to the base beneath it. A comeback is, by definition, a period where the base is small, so the same absolute jump that would be trivial in normal training is a spike now. Ten percent is what patience looks like with a number on it.

Use the pain rule, with its second half attached. A useful working standard from physiotherapy practice, often called the pain-monitoring approach: modest discomfort during or after a session, low-level, roughly a three out of ten or below, can be acceptable, provided it settles by the next morning and is not getting worse week over week. Pain that sharpens during the session, changes how you move, or is still there the next day is not toughness territory; it is the tissue reporting that the load got ahead of the healing, and the response is stepping back a level, not pushing through. Agree the exact threshold with your physio for your specific injury; their number for your tissue beats any article's general one, this one included.

Train everything the injury does not own

The most underused move in injury recovery: the injury restricts a region, not your entire training life, and maintaining the rest of the system is not merely allowed, it is what makes the eventual full return shorter.

A runner with a calf injury can usually maintain aerobic fitness in the pool or on a bike. A lifter with a shoulder problem has an entire lower body that is fine. Upper-body-only aerobic work exists, single-limb strength work exists, and maintained general fitness means that when the injured area is finally ready, it rejoins a trained body rather than dragging a detrained one behind it. Ask your physio the question in exactly this form: not "can I train?" but "what specifically can this injury not tolerate?", and treat everything outside that answer as trainable.

Meanwhile the recovery day rules still apply, arguably more than ever, since healing is itself a physiological cost the body is paying daily; the sizing logic in how to tell if you need a rest day carries straight into a comeback. And if the injury coincides with a compressed season of life, which it often does because stress and injury keep each other company, structure the reduced week deliberately using a training plan built for busy professionals rather than improvising a smaller week from guilt.

The part that actually fails: policing yourself

Read back over the rules and notice what they have in common: every one of them requires you to hold yourself below what you feel capable of, for weeks, precisely during the period you are most impatient. That is the real difficulty of the comeback. Not knowing the numbers. Obeying them on a Tuesday when you feel great.

This is where structure beats willpower, and where the return to training approach this site is built on earns its keep in the highest-stakes context there is. A plan that knows about the injury holds the ceiling for you: capacity stepped down and rebuilding on evidence, each week's load derived from what last week actually was, so a spike simply never gets scheduled, the restricted movements absent from the plan rather than present and resisted, and the reason stated on every held-back day: the load is capped this fortnight because the tissue's tolerance rebuilds slower than your fitness does.

Tell the coach what happened and what your physio cleared, and the plan rebuilds around exactly that: what is protected, what is trainable, how fast the ceiling rises. The daily conversation stops being you versus your impatience, which is a fight the comeback needs you to lose zero times, and becomes the plan quietly holding a line that was agreed when you were thinking clearly.

One honest sentence to close the section, because trust is built by the claims a page does not make: no app clears you to return from injury, and this one does not pretend to. Clearance is your clinician's. What the system does is the thing systems are actually for: holding the agreed boundaries steadily, every day, when the person inside them would not.

PX rebuilds the plan around what your body can currently absorb. Tell it what happened and what is cleared; it holds the ceiling, progresses on evidence, and gives you the reason behind every held-back day, across training, mind and food as one plan. Start your free trial and make the comeback boring, in the best way.