PE 202 - Chap. 3 Fundamentals of Applied Kinesiology

is a muscle that causes a desired motion. (prime mover)

muscles that have the potential to oppose the action of the agonist muscle.

assist the agonist in causing a desired action.

• Muscle acts as the motive force and shortens
• as it creates tension.

Motion is created by the muscle contraction.

• body’s mass is balanced on either side in all planes
• (frontal, sagittal, and transverse)

A point where gravity is enacting a constant downward pull.

Gravity acts on the body in a straight line through its COG toward the center of the earth.

• is the area beneath the body that is encompassed when one continuous line connects all points of
• the body that are in contact with the ground.

• A body at rest will stay at rest and a body in motion will stay in motion
• (with the same direction and velocity)
• unless acted upon by an external force

Force (F) acting on a body in a givendirection is equal to the body’s mass (m) multiplied by its acceleration (a).

Every applied force is accompanied by an equal and opposite reaction.