Plus, what to do instead
Something hurts. Maybe you’ve tweaked your back lifting something awkward, or your knee’s been niggling after a run, or you woke up with a stiff neck that won’t budge. And the instinct (understandably) is to stop. Rest it. Wait for it to pass.
It’s what we’ve been told for ever. “Don’t push through pain.” “Give it time.” “Just take it easy for a week.”
Here’s the thing though: for most musculoskeletal injuries and persistent pain conditions, extended rest is not only unhelpful, but it can make things worse. As someone who works with acute injuries and chronic pain every day, it’s one of the most important things I want to share with you.
So let’s talk about what actually happens to your body when you stop moving, what “the right kind of movement” really means, and how to figure out what’s safe for your specific situation.
What happens to your body with complete rest
When something hurts, rest feels protective. And in the very short term (the first 24 to 72 hours after an acute injury) some degree of relative rest absolutely has a role. But “relative rest” is very different from “do nothing.”
When we immobilise an area of the body for more than a few days, a cascade of changes begins. Muscles start to lose strength and bulk – research shows measurable atrophy can begin within 48 to 72 hours of disuse. Joints become stiffer as synovial fluid circulation decreases and connective tissue loses its pliability. Tendons, which rely on mechanical load to stay healthy, begin to weaken in the absence of movement.
And perhaps most counterintuitively: prolonged rest can actually increase pain sensitivity. The nervous system, deprived of normal movement input, can become more reactive – amplifying signals that might otherwise settle. This is one of the key reasons people who rest an injury for weeks sometimes find that when they do try to move again, it hurts more than it did at the start.
And it’s not just physical. When we stop doing things we enjoy, whether it’s sport, exercise, walking the dog, playing with our kids – our mood, sleep, and stress levels are affected. And we know that all of these factors influence pain. It’s not linear, and it’s not simple, but the connection is real and well-researched.
The right kind of movement for recovery
If rest isn’t the answer, the next question is: what is?
The short answer is load management aka finding the right type, amount, and intensity of movement that supports healing without aggravating your symptoms. This is the physiotherapy domain.
Load management looks different depending on the injury:
For back pain, it might mean gentle walking and a gradual return to daily activities, avoiding the extremes of both total rest and heavy lifting while tissue heals.
For tendon injuries (like a sore Achilles or rotator cuff), it typically involves a progressive loading program. Tendons need load to remodel and strengthen; without it, they don’t heal well (and it makes the process a whole lot slower).
Movement is medicine, but the dose matters enormously. Too little, and healing stalls. Too much, too soon, and you risk flare-ups and setbacks. Getting the dose right is where assessment and individualised planning make all the difference.
It’s also worth challenging the idea that pain during movement always means harm. Some discomfort during rehab is normal and expected – the key is learning to distinguish between pain that is a normal part of loading recovering tissue, and pain that is a signal to back off. A physio can help you build that literacy, so you’re not guessing.
Here’s to know what’s safe for your injury
There are situations where rest, or at least very significant activity modification, is genuinely the right call. Fractures, post-surgical recovery, and certain acute inflammatory conditions all require specific management that may limit movement in the short term.
But these are the exception, not the rule.
The challenge is that without an assessment, it’s hard to know which category you’re in. And that uncertainty can lead people to either do too much (pushing through pain that’s genuinely telling them something) or too little (resting an injury that needs movement to heal).
This is exactly what a physiotherapy assessment is for. A good initial appointment will help identify what’s going on, rule out anything that needs further investigation, and give you a clear, individualised plan – not a generic set of exercises you found on Google, but a program built around your injury, your body, your goals, and your life.
The bottom line
Rest has a role but it’s a supporting role, not the lead. For most injuries and pain conditions, the evidence points clearly toward early, appropriate movement as the most effective path to recovery. The goal isn’t to push through pain recklessly, but to find the movement that helps you heal, and to gradually build back from there.
You don’t have to figure that out on your own.
if in doubt, book in & check it out
Together we’ll work out exactly what’s going on and build a recovery plan that actually fits your life.
If you’re more of a visual learner, check out this instagram post for a breakdown
You can get in touch or book online and we’ll take it from there!