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Biomechanics of Sports Related Concussions PowerPoint PPT Presentation


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Lisa Schulte. Biomechanics of Sports Related Concussions. Introduction. Participation in sporting events account for roughly 1.6 to 3.8 million brain injuries annually. A concussion results from a rotational acceleration or deceleration injury to the head. Terms.

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Biomechanics of Sports Related Concussions

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Lisa schulte

Lisa Schulte

Biomechanics of Sports Related Concussions


Introduction

Introduction

  • Participation in sporting events account for roughly 1.6 to 3.8 million brain injuries annually.

  • A concussion results from a rotational acceleration or deceleration injury to the head.


Terms

Terms

  • Force- (N)the action of one body on another which will cause acceleration of the 2nd body unless acted on by an equal/ opposite action

  • Deformation- change in the shape of the body undergoing the force

  • Injury- the result of the force

    • Focal/ Diffuse


Factors affecting force analysis

Factors Affecting Force Analysis

  • Type of Load

    • direct, indirect

  • Types of Force

    • Translational (linear), Rotational, Angular

  • Direction of Force

  • Magnitude of Force

  • Duration of Force

    • Shorter duration=less damage

  • Rate of Force

  • Region of the Brain


Head impact telemetry system

Head Impact Telemetry System

HITS is a wireless monitoring system

used to identify hits capable of

producing an injury.

Helmets equipped with HITS look

and function the same as other

helmets

Accurately identifies the location to ± .41 cm

Impacts 15 g or greater are recorded


Applying newton s laws

Applying Newton’s Laws

  • Formula for calculating acceleration

    • a=(V² – Vo²)/2sg

    • Example:

      • A=(-3.658 m/s)²/ (2)(0.152m)(9.8 m/s²)=4.49 g

  • Formula for Newton Second Law of Motion

    • F=mass x acceleration


Protecting the athlete

Protecting the Athlete

  • Helmets

    • Pressure= Force/Area

  • Mouth Guards

    • The cushioning effects of a mouth guard increase time and distance of deceleration


Recent developments

Recent Developments

  • Return to Play

  • Long Term Effects of Concussions

  • NFL and NCAA rule changes

  • Concerns with Young Athletes


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