What Actually Reduces the Risk of Concussion in Sport?

Concussions are one of the most complex injuries in sport. Despite advances in technology, medicine, and training, there is still no single intervention that can fully prevent a concussion.

That might sound frustrating, but it’s also important.

Because the real answer is this:

Concussion risk is managed, not eliminated.

The best approach combines education, physical preparation, appropriate equipment, and structured return-to-play systems.

Below is what the current evidence actually says about the most common strategies used to reduce risk or protect athletes.

Understanding Why Concussions Are Hard to Prevent

A concussion is not caused by a direct blow alone.

It is a brain acceleration injury, where rapid movement of the head causes the brain to shift inside the skull.

This means:

• You can get a concussion without direct head contact

• You can get one from body contact or whiplash

• External equipment has limited ability to stop internal brain movement

This is why prevention is challenging and why most strategies focus on risk reduction, not elimination.

1. Helmets: Essential, But Not for Concussion Prevention

Helmets are often the first thing people think of.

Here’s the reality:

• Helmets are excellent at preventing skull fractures and severe head trauma

• They do not reliably prevent concussions

The Australian Institute of Sport clearly states that helmets “will not stop concussion from occurring” .

Some studies suggest certain helmet designs may reduce risk slightly in specific contexts, but:

• Results are inconsistent

• Mechanism of injury (brain acceleration) is not addressed

Takeaway:
Helmets are non-negotiable for safety, but they are not a concussion prevention tool.

2. Mouthguards: Important for Teeth, Limited for Brain Protection

Mouthguards are widely used across contact sports.

What the evidence shows:

• Strong protection against dental and facial injuries

• Inconclusive or minimal evidence for reducing concussion risk

Some studies suggest a small potential benefit, but findings are inconsistent and not strong enough to rely on.

Takeaway:
Use mouthguards for safety, but do not rely on them to prevent concussion.

3. Neck Supportive Devices (e.g. Q Collar): Promising Theory, Weak Evidence

Devices designed to reduce brain movement (such as jugular compression collars) have gained attention.

The theory:

• Increase blood volume in the skull

• Reduce brain “slosh” during impact

The reality:

• Current research shows no meaningful reduction in concussion rates

Takeaway:
Interesting concept, but not supported by strong evidence yet.

4. Neck Strength Training: One of the Most Promising Areas

This is where things get more interesting.

Research suggests:

• Stronger neck muscles help stabilise the head during impact

• Reduced head acceleration may reduce concussion risk

A large study of thousands of athletes found:

• Greater neck strength was associated with lower concussion risk

However:

• Not all studies agree

• Evidence is still evolving

Takeaway:
Neck strength is one of the most practical and promising strategies, especially in youth and contact athletes.

5. Supplementation: Limited Evidence for Prevention

You’ll often hear about supplements like:

• Omega-3 fatty acids

• Creatine

• Magnesium

• Tumeric

Here’s the evidence-based view:

• Some supplements and nutrients may support brain health and recovery

• There is no strong evidence they prevent concussions

Current guidelines (including AIS-aligned approaches) do not recommend supplementation as a primary prevention strategy.

Takeaway:
Supplementation may support recovery of a concussion (and are shown to improve traumatic brain injuries), but it is not a proven prevention method.

6. Baseline Testing: Not Prevention, But Critical for Protection

Baseline concussion testing is often misunderstood.

It does not reduce the risk of concussion occurring

However, it is one of the most important tools for:

• Accurate diagnosis

• Tracking recovery

• Safe return-to-play decisions

Organisations like Pivot emphasise baseline testing as part of:

• A structured concussion management system

• Objective return-to-sport clearance

  Learn more here

Takeaway:
Baseline testing is not prevention, but it is essential for protecting athletes after injury.

What Actually Works Best: A Systems Approach

The strongest evidence supports a multi-layered strategy, including:

1. Education

• Athletes reporting symptoms honestly

• Coaches recognising signs early

2. Rule and Contact Modifications

• Reducing high-risk contact in training

• Enforcing safe play

3. Physical Preparation

• Neck strength training

• Whole-body strength and control

4. Medical Systems

• Baseline testing

• Clear return-to-play protocols

• Ongoing monitoring

5. Proper Equipment Use

• Helmets and mouthguards for general safety

The Real Message for Athletes and Clubs

If you are looking for a single “fix” to prevent concussions, it does not exist.

But if you:

• Build stronger athletes

• Educate your environment

• Implement proper medical systems

You can significantly reduce risk and improve outcomes.

Final Summary

• Helmets and mouthguards protect against serious injury, not concussion

• Neck strength is one of the most promising physical protectors

• Devices and supplements currently lack strong evidence

• Baseline testing is critical for safe return, not prevention

• The best results come from a complete, system-wide approach