strength-not-enough-rehabilitation

​Why Being Strong Isn’t Enough: The Missing Link in Rehab and Performance

Written by Amy Ross, Physiotherapist & Exercise Scientist at Star Physio WA, with a clinical focus on strength, rehabilitation and return to sport performance.

Amy Ross during Crossfit competition

Is Being Strong Enough in Rehabilitation?

No — being strong alone is not enough in rehabilitation. To safely return to sport and reduce injury risk, you also need to restore rate of force development (RFD), which is your ability to produce force quickly under real-world demands. At Star Physio, our rehabilitation and sports physiotherapy programs integrate both strength and explosive intent to ensure you’re not just strong, but prepared for the speed of sport and life.

Most athletes and active individuals now understand that strength training is essential. Lifting weights is no longer reserved for power athletes — and for good reason.

Strength training helps:

• reduce injury risk
• improve performance
• enhance movement efficiency

Even if you do not consider yourself an athlete, strength still plays a critical role in everyday movement, joint protection and long-term health.

But this is where the conversation often stops too early.

Because in both rehabilitation and performance, being strong is only part of the equation.

The real question is: how quickly can you use that strength?

Strength Is Not Just One Thing

Strength can be broken down into different qualities:

• Maximal strength → the highest force you can produce
• Explosive strength (Rate of Force Development – RFD) → how quickly you can produce that force

That second quality is often the missing link in both rehab and performance.

Why Rate of Force Development (RFD) Matters

In real-world movement, you do not have unlimited time to produce force.

Most sporting actions happen fast:

• sprinting
• jumping
• cutting and changing direction
• reacting to instability

These movements often occur in less than 200 milliseconds.

Why This Matters for Cyclists and Runners

At Star Physio, we work extensively with cyclists and runners — and this is where RFD becomes highly relevant.

For cyclists

• sprinting out of corners
• attacking on climbs
• accelerating in a bunch
• transitioning from seated to standing

These all require rapid force production, not just strength. Even a strong rider can feel “flat” if they cannot access that strength quickly.

For runners

Every step requires fast force production.

• ground contact times are short
• muscles must stabilise and produce force rapidly
• efficient force transfer improves running economy

For example, the glute medius must activate quickly to control pelvic stability. Delayed force leads to inefficiency, overload and increased injury risk.

Why This Matters in Injury Prevention

When your foot hits the ground, your body has a very small window to:

• stabilise joints
• absorb load
• protect tissues

Muscles must respond in as little as 30–70 milliseconds.

If that response is too slow, ligaments and passive structures take more load.

This is where Rate of Force Acceptance (RFA) becomes critical — your ability to absorb and control force quickly.

In many sporting tasks, landing forces can reach 3.5–7.1 times bodyweight within the first 30 milliseconds of ground contact.

How Do We Measure It?

In ideal settings, RFD is measured using:

• force plates
• dynamometry
• isometric strength testing

In the clinic, we often assess it through:

• jump testing
• hop testing
• repeated rebound tasks
• rapid step-ups
• sprint and change-of-direction drills

At Star Physio, we combine clinical testing with tools such as force measurement systems to assess both maximal strength and RFD, helping guide rehabilitation and return to sport decisions.

The Rehab Gap: Strength vs Speed

A common issue we see clinically is:

• strength improves
• speed of force production does not

Even years after ACL reconstruction:

• strength may recover
• but RFD deficits can persist by 20–23%

Maximal strength takes more than 250 milliseconds to develop, yet most injury scenarios occur much faster.

This is why simply being “strong enough” often is not enough.

How This Applies to Return to Sport

At Star Physio, our approach to return to sport rehabilitation goes beyond strength alone.

We specifically target:

• fast force production
• rapid force absorption
• reactive control

Our sports physiotherapy and return to sport rehabilitation programs focus on restoring both strength and speed to reduce reinjury risk and improve performance outcomes.

Beyond Sport: Why It Matters for Everyone

Rehabilitation Class at Star Physio

As we age, we lose:

• strength
• and the ability to produce it quickly

This impacts:

• balance
• fall prevention
• independence

Many real-world tasks — such as catching a trip or recovering balance — rely on fast strength, not slow strength.

Do We Still Need Heavy Strength Training?

Yes.

Maximal strength remains the foundation.

• Strength = size of the engine
• RFD = how quickly you can use it

If your strength base is low, your potential is limited. But if you cannot access that strength quickly, it will not transfer effectively.

The Real Answer

It is not strength or speed.

It is strength plus speed, trained together.

How to Train Rate of Force Development

The key concept is intent.

You must move with speed and purpose:

• drive the bar up fast
• jump with maximal effort
• perform step-ups explosively

Practical Ways to Add It In

1. Build the Strength Base

• squats
• deadlifts
• split squats
• lunges
• hip thrusts

2. Move Lighter Loads Fast

• jump squats
• trap bar jumps
• medicine ball throws

3. Use Bodyweight Power Work

• jumps
• hops
• bounds
• explosive step-ups

4. Add Plyometrics

• landing and rebounding drills

5. Progress to Reactive Work

• repeated hops
• change-of-direction drills

When Should You Train It?

• early in the session
• when fresh
• prioritise quality

If performance drops, stop the set.

How Much Do You Need?

• low volume
• high quality
• consistent exposure

Who Benefits Most?

• runners
• cyclists
• field and court athletes
• post-injury athletes
• older adults

In reality, almost everyone.

Final Takeaway

Being strong matters.

But strength is only useful if you can access it quickly enough.

• strength gives you capacity
• RFD determines how quickly you can use it

At Star Physio, that is the difference between being strong in theory — and being ready in practice.

Want to Improve Performance or Return to Sport Safely?

If you are recovering from injury or looking to improve performance in running or cycling, Amy Ross and the team at Star Physio can help.

Our physiotherapy approach integrates:

• strength training
• explosive loading
• sport-specific rehabilitation

Book a consultation at West Perth with Amy Ross to get a tailored plan.

Frequently Asked Questions!