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Safety Science

How Do Helmets Prevent Concussions? Protection Mechanics

Tris Helmets Team · 2026-05-20

Understanding how helmet technology reduces concussion risk and severity.

How Do Helmets Prevent Concussions? Protection Mechanics

Impact force distribution

Helmets spread impact force over wider surface area.

Reduces peak force transmitted to head.

Outer shell distributes lateral forces.

Effective force reduction decreases injury severity.

Energy absorption

Foam liners absorb and dissipate impact energy.

EPS foam provides primary shock absorption.

Multi-layer designs optimize protection.

Extended contact time reduces peak deceleration.

Rotational force reduction

MIPS technology reduces rotational movement.

Brain injury often results from rotational forces.

Helmet systems minimize rotational impact.

Advanced designs improve concussion protection.

Limitations of helmet protection

Helmets reduce but don't eliminate concussion risk.

Some concussions result from internal forces.

Severity is reduced even if not prevented.

Multiple protection strategies work together.

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