Shoulder rehabilitation after surgery: from protection to strength and sport

26 September 2026

by Robrecht Bex
- Sportsphysiotherapist at KV Mechelen and Orbit

The shoulder is a unique joint.

Compared with many other joints in the body, the shoulder can move through an enormous range. We can raise the arm overhead, reach behind us, rotate, throw, support our body weight and produce force in almost every imaginable position.

That freedom of movement, however, comes with a trade-off.

The shoulder needs to be highly mobile and highly stable at the same time.

And that is exactly where the challenge lies.

A lot of mobility, but still enough stability

The head of the upper arm is relatively large compared with the shallow socket in which it moves. You can think of it somewhat like a large ball resting on a small plate.

This design allows for a huge amount of movement, but it also means that the shoulder cannot rely as much on the shape of the joint itself for stability.

The hip, for example, has a much deeper socket. The head of the femur sits firmly within that socket. In the shoulder, this is much less the case.

That means shoulder stability has to be created to a large extent by:

• muscles
• tendons
• the joint capsule
• the labrum
• proper positioning and movement of the shoulder blade

This interaction makes the shoulder both highly functional and complex.

Good shoulder rehabilitation is therefore not simply about regaining enough range of motion. We also need to make sure that this movement can once again take place in a controlled and stable way.

The rotator cuff: the active stabiliser of the shoulder

One of the most important parts of this system is the rotator cuff.

The rotator cuff consists of four muscles that form a kind of cuff around the head of the upper arm.

Their role goes far beyond simply rotating the arm inwards or outwards.

You can think of the rotator cuff as a group of small steering muscles that constantly help keep the humeral head centred in the socket while the larger muscles produce force.

When the deltoid lifts the arm, for example, it generates considerable force around the shoulder joint. At the same time, the rotator cuff helps prevent the humeral head from moving excessively upwards or sideways.

In other words:

the larger muscles produce the movement, while the rotator cuff helps make sure that the movement happens in the right place.

This is important during simple daily movements, but becomes even more important during fast or explosive actions such as:

• throwing
• striking
• swimming
• weight-bearing through the arm
• falling
• pushing and pulling
• contact situations

After surgery, rehabilitation therefore needs to restore not only general shoulder strength, but also the ability of these muscles to dynamically control the joint.

The shoulder blade is an essential part of the system

Shoulder movement never takes place solely at the shoulder joint.

When you raise your arm overhead, the shoulder blade also moves across the rib cage.

You can think of the shoulder blade as the platform from which the arm moves.

When that platform moves well and remains sufficiently controlled, the muscles around the shoulder can work more efficiently. When this control is impaired, the body may compensate by elevating the shoulder, rotating the trunk or changing the movement of the shoulder blade.

That is why shoulder rehabilitation does not focus only on the structure that was operated on.

We also assess:

• shoulder blade movement
• trunk control
• thoracic spine mobility
• strength of the muscles surrounding the shoulder blade
• coordination between the shoulder blade and upper arm

The shoulder is ultimately not an isolated joint, but part of a complete movement chain.

Phase 1: protect without unnecessarily losing capacity

After surgery, the operated tissue needs time to heal.

How long certain movements or loads need to be restricted depends strongly on the exact procedure.

A rotator cuff repair, for example, requires a different progression from a stabilisation procedure following shoulder dislocations or surgery involving the labrum.

During this first phase, we therefore take into account:

Protection does not, however, mean complete inactivity.

During this phase, we aim to maintain mobility of the neck, elbow and wrist where possible, while keeping general physical conditioning at the highest possible level.

Depending on the surgery, passive and later active shoulder movements are gradually reintroduced.

The goal is to respect the healing tissue without unnecessarily losing physical capacity.

Phase 2: restoring mobility and control

Once more movement is allowed, an important phase begins.

Many patients primarily focus on one question:

“How high can I lift my arm again?”

But range of motion alone does not tell the whole story.

We also want to see how someone moves.

After surgery, a person may be able to raise the arm fully overhead again, but still compensate by:

That is why we combine mobility work with movement control.

This phase may include:

• progressively restoring full range of motion
• improving shoulder blade control
• activating and strengthening the rotator cuff
• restoring coordination between the shoulder blade and upper arm
• moving without unnecessary compensations

The aim is not simply to regain movement.

We want the shoulder to move freely and with control.

Phase 3: building strength and load capacity

As mobility and control improve, strength training becomes increasingly important.

Initially, exercises are usually performed in a controlled manner.

The rotator cuff is gradually loaded again, while the larger muscle groups around the shoulder and shoulder blade are also strengthened.

Over time, we progress towards:

At the same time, we do not train the shoulder in isolation.

Efficient movement depends on the interaction between the arm, shoulder blade, trunk and often the legs as well.

During a throwing movement, for example, force generation does not begin at the shoulder.

The legs and trunk generate and transfer a considerable amount of energy before the arm accelerates.

Rehabilitation should therefore gradually evolve from local shoulder exercises towards more integrated movement patterns.

Phase 4: returning to speed and explosiveness

Being strong during a controlled exercise does not automatically mean that the shoulder is ready for sport.

Sport often happens at much higher speeds.

And frequently in less predictable situations.

A volleyball player needs to spike overhead. A tennis player serves at high speed. A judoka needs to pull forcefully and absorb unexpected forces. A contact-sport athlete must eventually feel confident falling or making contact again.

During the later stages of rehabilitation, we therefore increase not only resistance, but also:

Depending on the sport, this can include:

• medicine ball throws
• plyometric push-ups
• fast pushing and pulling movements
• overhead progressions
• throwing or striking progressions
• weight-bearing exercises
• preparation for contact situations

Eventually, training should start to resemble what the shoulder actually needs to tolerate in sport.

When is a shoulder ready to return to sport?

We prefer not to answer that question based on time alone.

Time remains important because biological healing cannot simply be accelerated by training harder.

However, two athletes who are both six months post-surgery may still have very different levels of function.

That is why we combine time since surgery with objective information.

At ORBIT, depending on the individual and the sport, we may assess:

• shoulder mobility
• rotator cuff strength
• strength differences between left and right
• strength in different movement directions
• shoulder blade control
• functional weight-bearing and strength capacity
• explosive capacity where relevant
• the shoulder’s response after training
• confidence during sport-specific movements

The demands placed on a recreational athlete are different from those placed on someone involved in overhead throwing, swimming, climbing or contact sports.

Return-to-sport criteria should therefore reflect what the individual actually needs to be able to do.

From return to sport to return to performance

The goal of rehabilitation is not simply for someone to be allowed to participate in sport again.

We want them to have enough capacity to perform their sport properly.

That is why we distinguish between return to sport and return to performance.

An athlete may technically be back in training while still:

• lacking strength
• lacking speed
• fatiguing more quickly
• feeling uncertain in certain positions
• having less load capacity than before the injury

The final stage of rehabilitation therefore often stops looking like traditional rehabilitation.

It starts to look like real training again.

And that is exactly the point.

How we approach shoulder rehabilitation at ORBIT

At ORBIT, we do not use the same standard programme for every patient after shoulder surgery.

We always start with three questions:

What was operated on?

How far has the recovery progressed?

What does this shoulder ultimately need to be able to do again?

Where necessary, we coordinate the rehabilitation process with the treating surgeon.

Throughout the rehabilitation process, we combine clinical assessment with progressive strength training and objective measurements of mobility and strength.

This allows us not only to determine whether someone is improving, but also to identify where limitations still remain.

A recreational athlete will therefore follow a different pathway from a tennis player, swimmer, volleyball player, judoka or another athlete with high demands on the shoulder.

The underlying principle, however, remains the same:

first protect the shoulder, then rebuild control and capacity, and finally prepare it for the real demands of sport and daily life.

Are you currently rehabilitating after shoulder surgery?

The key is building each phase at the right time.

Loading too quickly can cause problems, but remaining cautious for too long can also result in strength and load capacity falling behind.

At ORBIT in Leuven, we guide patients and athletes throughout the full rehabilitation process: from the early post-operative phase to strength training, objective testing and return to sport.

The goal is not simply a shoulder that can move without pain again.

The goal is a shoulder that is strong, stable and reliable enough for what you want to do with it.