When you injure yourself, one of the first things you may hear is:

“Just rest it.”

Rest can certainly be useful after an injury. Giving an injured area time to settle, reducing activities that aggravate your symptoms and protecting the tissue from excessive stress can all be important parts of recovery.

But does that mean you should completely stop moving?

Not necessarily.

For many common injuries, modern rehabilitation focuses on a balance between protection and movement. Too much activity too soon can aggravate an injury, but too much rest can also lead to stiffness, weakness, reduced confidence and loss of physical capacity.

Research increasingly supports a more individualised approach: protect the injured area when necessary, but gradually reintroduce appropriate movement and loading as recovery progresses.

So, when should you rest, and when should you start moving?

Let's take a closer look.

What Does “Rest” Actually Mean?

When people talk about resting an injury, they often mean avoiding physical activity completely.

However, rehabilitation professionals often think about rest differently.

Rather than complete inactivity, relative rest means temporarily reducing or modifying activities that significantly aggravate your symptoms while continuing safe movements and everyday activities where appropriate.

For example, if you've sprained your ankle, relative rest might mean:

• Avoiding running for a period of time

• Using a brace or other support if recommended

• Reducing walking distance initially

• Continuing gentle ankle movements

• Gradually increasing weight-bearing

• Progressively rebuilding strength and balance

This is very different from sitting on the sofa for several weeks and avoiding all movement.

The appropriate amount of rest depends on what you've injured, how severe the injury is, your symptoms and your stage of recovery.

Why Rest Can Be Helpful After an Injury

There are situations where reducing activity is important.

Immediately after an injury, the affected tissues may be painful, swollen and less tolerant of physical load. Continuing the exact activity that caused the injury may increase symptoms or delay your ability to recover.

For example, a significant muscle strain may initially require protection from high-speed movements and heavy loading.

A 2023 international consensus on hamstring rehabilitation recommended protecting injured tissue from high-strain and high-rate loading during the early stage of rehabilitation, while progressively introducing appropriate loading as recovery allows (Schache et al., 2023).

So, rest has a role — particularly when it means temporarily reducing inappropriate or excessive loading.

The problem occurs when short-term protection turns into prolonged inactivity.

Why Too Much Rest Can Become a Problem

Your body adapts to the demands you place on it.

If you stop using a muscle or joint for a prolonged period, your physical capacity can decrease.

You may experience:

• Muscle weakness

• Reduced cardiovascular fitness

• Joint stiffness

• Reduced movement confidence

• Reduced balance

• Lower tolerance to physical activity

• Difficulty returning to work or sport

This can create a frustrating cycle.

You rest because movement hurts → your physical capacity decreases → normal activities feel more difficult → you experience more symptoms when you eventually become active again → you rest again.

The solution isn't necessarily to push through severe pain.

Instead, rehabilitation aims to gradually rebuild your capacity.

Early Movement Can Be Helpful for Some Injuries

One of the clearest examples comes from ankle sprains.

An ankle sprain can be painful and swollen, so you may instinctively want to keep your foot completely still.

However, research has investigated whether early movement and functional treatment can be preferable to prolonged immobilisation.

A randomised trial comparing early mobilisation with 10 days of immobilisation after first-time lateral ankle sprains found that the early-mobilisation group experienced less pain at three weeks and returned to full work sooner.

A systematic review of 22 studies also found several outcomes favouring functional treatment over immobilisation, including return to sport, return to work, swelling, range of motion and patient satisfaction (Kerkhoffs et al., 2002).

More recent evidence is somewhat more nuanced. A 2025 systematic review and meta-analysis of 10 randomised controlled trials involving 1,133 people found no statistically significant difference between functional treatment and immobilisation for patient-reported pain or function in acute ankle sprains.

This illustrates an important point:

There isn't one recovery strategy that works identically for every injury.

In fact, the 2021 clinical practice guideline for lateral ankle sprains recommends progressive weight-bearing, external support when appropriate and structured therapeutic exercise, while noting that more severe injuries may require a short period of immobilisation — sometimes up to 10 days.

The goal isn't “never rest”.

The goal is the right amount of protection at the right time.

Movement Doesn't Mean Pushing Through Pain

One common misunderstanding about active rehabilitation is that you should simply ignore pain and keep exercising.

That's not what good rehabilitation means.

Movement and exercise should be appropriately dosed.

Your physiotherapist may consider:

• Pain during an exercise

• Pain later that day

• Symptoms the following morning

• Swelling

• Strength

• Range of movement

• Your overall function

• How quickly you recover after activity

If symptoms consistently become significantly worse after an exercise, the activity may need to be modified.

On the other hand, avoiding every movement that produces even a small amount of discomfort may unnecessarily restrict your rehabilitation.

This is why rehabilitation is often based on symptom response and progression, rather than a simple “pain = damage” rule.

Rest vs. Loading: Think About Capacity

A useful way to understand rehabilitation is to think about load versus capacity.

Imagine your injured tissue currently has a capacity of 50 units, but your normal activity requires 100 units.

Returning immediately to your normal activity could overload the tissue.

Complete rest, however, may reduce your capacity even further.

Instead, rehabilitation aims to gradually increase your capacity.

For example:

Injury → protection → gentle movement → strengthening → increased loading → functional activity → return to sport/work

The exact process will depend on the injury.

This approach is particularly important for tendon problems.

Tendon Injuries Usually Need Loading — Not Complete Rest

Tendinopathy is a good example of why “just rest” isn't always the answer.

Conditions such as Achilles tendinopathy, patellar tendinopathy and rotator cuff-related pain are often associated with problems tolerating physical load.

Simply stopping activity may reduce symptoms temporarily, but it does not necessarily rebuild the capacity needed to tolerate normal activity.

Research supports resistance exercise as an important part of tendinopathy management.

A large systematic review and meta-analysis involving 110 studies and nearly 4,000 participants found that resistance exercise was effective for common tendinopathies, with higher-intensity exercise involving external resistance generally showing greater effects than bodyweight-only exercise (Pavlova et al., 2023).

Interestingly, the research also highlighted the importance of allowing adequate recovery between sessions.

So the answer isn't:

“Exercise constantly.”

Nor is it:

“Don't use the tendon.”

Instead, the aim is to find an appropriate loading dose.

What About Muscle Injuries?

Muscle injuries provide another example of why rehabilitation needs to progress gradually.

After an acute hamstring injury, immediately returning to sprinting would clearly be inappropriate for many people.

However, prolonged inactivity isn't generally the end goal either.

Research has found that progressive rehabilitation exercises can help people return to sport following acute hamstring injuries.

A systematic review and meta-analysis of randomised controlled trials found that rehabilitation involving lengthening exercises reduced time to return to play compared with conventional exercise programmes, although the evidence had important limitations and did not show a clear reduction in reinjury risk (Pas et al., 2015).

More recent expert consensus recommends individualised rehabilitation based on the type and severity of the injury, the person's physical capacity and the demands of their sport. Progression should consider symptoms, strength and the response to previous loading.

This means that a hamstring injury isn't simply:

Injury → rest → healed.

It is more accurately:

Injury → protection → progressive loading → running → sport-specific preparation → return to sport.

What Happens If You Rest for Too Long?

Prolonged rest can sometimes make returning to normal activity more difficult.

Imagine someone who normally walks 10,000 steps a day but completely stops walking for several weeks after a minor injury.

When they eventually start walking again, their body may not be accustomed to the previous workload.

The activity itself may therefore feel surprisingly difficult.

This doesn't necessarily mean the original injury has become worse.

It may mean that your capacity has temporarily decreased.

This is why rehabilitation often includes gradual exposure to increasingly demanding activities.

Your body needs an opportunity to adapt.

The “No Pain, No Gain” Approach Isn't the Answer Either

If complete rest isn't always ideal, you might think the opposite must be true:

“I'll just push through the pain.”

Again, that's not necessarily appropriate.

There is a significant difference between progressive loading and overloading an injured structure.

For example, returning to full-speed sprinting immediately after a significant hamstring injury could place substantial strain on healing tissue.

Similarly, returning to heavy lifting immediately after a significant shoulder injury may exceed your current capacity.

Good rehabilitation considers where you are now, rather than where you want to be immediately.

How Do You Know When to Start Moving?

There isn't a universal number of days that applies to every injury.

Instead, your physiotherapist may consider several factors.

Your pain

Is your pain improving, stable or getting worse?

Swelling

Is swelling reducing, or does activity cause significant swelling?

Movement

Can you move the affected joint or body part appropriately?

Strength

Has your strength started to return?

Function

Can you perform basic everyday activities?

Response to activity

How does your body respond during the activity and afterwards?

Injury severity

A minor strain and a major ligament injury obviously require different approaches.

Your goals

Returning to walking, manual work and competitive sport all require different levels of rehabilitation.

This is why two people with apparently similar injuries may receive different rehabilitation programmes.

What Is the Best Approach? Rest, Exercise or Both?

For many injuries, the answer is:

Both — but at different levels and at different stages.

Think of recovery as a progression.

Stage 1: Protect

Immediately after some injuries, reducing aggravating activities can be important.

Stage 2: Move

Introduce safe, comfortable or appropriately tolerated movement.

Stage 3: Load

Begin rebuilding strength and tissue capacity.

Stage 4: Progress

Gradually increase resistance, range, speed, duration or complexity.

Stage 5: Return to normal activity

Reintroduce the specific movements required for your job, hobbies or sport.

This doesn't mean every injury follows exactly these five steps. Some injuries require surgery, prolonged protection or specialist management.

But for many common musculoskeletal problems, gradual rehabilitation is more useful than either complete rest or immediately returning to full activity.

How Physiotherapy Can Help

One of the biggest advantages of physiotherapy is that rehabilitation can be adjusted as you recover.

Your physiotherapist can help you determine:

• Which activities you should temporarily reduce

• Which movements are safe to perform

• How much exercise is appropriate

• When to increase the load

• How to rebuild strength

• How to improve mobility

• How to regain balance and coordination

• When to start sport-specific training

• How to safely return to work or exercise

For example, clinical practice guidelines for acute lateral ankle sprains recommend structured therapeutic exercise including protected active range of movement, strengthening, neuromuscular training and balance exercises, alongside progressive weight-bearing where appropriate.

The programme should be adapted according to the injury, symptoms, physical findings and individual goals.

When Should You Rest More?

Rest or increased protection may be appropriate when:

• Pain is rapidly worsening

• Swelling is increasing significantly

• You cannot safely bear weight

• A movement causes a sharp or severe increase in symptoms

• You have sustained a significant injury

• Your healthcare professional has advised immobilisation

• You have recently undergone surgery

• You have a fracture or suspected fracture

• The injury requires protection while tissues heal

These situations require individual assessment.

Don't use a generic exercise programme for a potentially serious injury.

When Should You Start Moving Again?

For many uncomplicated injuries, movement can gradually be introduced once it is safe to do so.

You may start with simple activities such as:

• Gentle range-of-motion exercises

• Short walks

• Light strengthening

• Balance exercises

• Low-impact cardiovascular exercise

• Gradual increases in daily activity

The exact exercises should depend on the injury. 

A physiotherapist can help determine what is appropriate and how quickly to progress.

The Bottom Line: 

Is rest really the best treatment for an injury?

Sometimes — but usually not indefinitely. 

Rest can be valuable immediately after an injury, particularly when it means protecting damaged tissue from excessive or inappropriate loading. 

However, prolonged complete rest can lead to reduced strength, mobility, fitness and confidence. 

Research across conditions such as ankle sprains, muscle injuries and tendinopathies supports the importance of appropriately timed and progressively increased activity as part of rehabilitation. 

The goal isn't to choose between rest and exercise. 

The goal is to find the right amount of activity for your current stage of recovery. 

If you've recently been injured, don't automatically assume that you need to stay completely still. Equally, don't assume that you should simply push through the pain. 

Protect what needs protecting, keep moving where it is safe, and gradually rebuild your capacity. 

That's where an individualised physiotherapy assessment can make a difference.

References

Kerkhoffs, G. M. M. J., Rowe, B. H., Assendelft, W. J. J., Kelly, K. D., Struijs, P. A. A., & van Dijk, C. N. (2002). Immobilisation for acute ankle sprain: A systematic review. Archives of Orthopaedic and Trauma Surgery, 122, 462–467. https://doi.org/10.1007/s00402-002-0409-7

Martin, R. L., Davenport, T. E., Fraser, J. J., Sawdon-Bea, J., Carcia, C. R., Carroll, L. A., Kivlan, B. R., & Carreira, D. (2021). Ankle stability and movement coordination impairments: Lateral ankle ligament sprains revision 2021. Journal of Orthopaedic & Sports Physical Therapy, 51(4), CPG1–CPG80. https://doi.org/10.2519/JOSPT.2021.0302

Pas, H. I. M. F. L., Reurink, G., Tol, J. L., Weir, A., Winters, M., & Moen, M. H. (2015). Efficacy of rehabilitation (lengthening) exercises, platelet-rich plasma injections, and other conservative interventions in acute hamstring injuries: An updated systematic review and meta-analysis. British Journal of Sports Medicine, 49(18), 1205–1212. https://doi.org/10.1136/bjsports-2015-094879

Pavlova, A. V., Shim, J. S. C., Moss, R., et al. (2023). Effect of resistance exercise dose components for tendinopathy management: A systematic review with meta-analysis. British Journal of Sports Medicine, 57, 1327–1334. https://doi.org/10.1136/bjsports-2022-105754

Schache, A. G., et al. (2023). London International Consensus and Delphi study on hamstring injuries part 3: Rehabilitation, running and return to sport. British Journal of Sports Medicine, 57(5), 278–291. https://doi.org/10.1136/bjsports-2021-105384

Vilchez-Cavazos, F., Quiroga-Garza, A., Acosta-Olivo, C. A., Rodríguez-Corpus, L. A., Espinosa-Uribe, A. G., Peña-Martínez, V. M., & Simental-Mendía, M. (2025). Functional treatment versus immobilization for the management of acute ankle sprains: A systematic review and meta-analysis. Journal of Bodywork & Movement Therapies, 44, 48–55. https://doi.org/10.1016/j.jbmt.2025.05.035