Biomechanics Review Test 1

Define Biomechanics

the study of force acting on the body and the effects produced by the forces.

GIVE AN EXAMPLE OF HOW A COACH, PHYSICAL EDUCATION TEACHER AND ATHLETIC TRAINER MIGHT USE BIOMECHANICS.

teach proper form to athletes, avoid injury

e.g. a coach analyzing a baseball pitchers throwing motion to identify areas where they can generate more power or reduce joint stress to avoid injury.

What is the difference between kinematics and kinetics

kinematics describes the position, velocity, and acceleration without considering the forces that cause it.

kinetics studies the relationship between motion and the forces that cause it

name three companies that make a video system for biomechanics

Vicon, Qualisys, OptiTrack

what does a biomechanics force plate measure?

Walking, running, vertical jump, balance

How does the CNS know if the center of mass is over the base of support?

Uses data from vision, vestibular, and somatosensory to choose appropriate neuromuscular response to keep center of mass on base of support.

What is dartfish used for?

A video analysis system that is used to enhance sports performance by providing detailed insight into movement and technique

Define a scalar and give an example

A scalar is a quantity that has only magnitude

E.x. mass, moment of inertia

Define a vector and give an example

a quantity with both direction and magnitude

e.x. position, velocity, acceleration, force, torque