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Biomechanics of Sports Related Concussions

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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  1. Lisa Schulte Biomechanics of Sports Related Concussions

  2. 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.

  3. 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

  4. 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

  5. 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

  6. 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

  7. Protecting the Athlete • Helmets • Pressure= Force/Area • Mouth Guards • The cushioning effects of a mouth guard increase time and distance of deceleration

  8. Recent Developments • Return to Play • Long Term Effects of Concussions • NFL and NCAA rule changes • Concerns with Young Athletes

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