Biomechanics of Sports Related Concussions
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Transcript 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
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
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
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
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
Helmets
Pressure= Force/Area
Mouth Guards
The cushioning effects of a mouth guard increase
time and distance of deceleration
Recent Developments
Return to Play
Long Term Effects of Concussions
NFL and NCAA rule changes
Concerns with Young Athletes