Muscle Actions
 3 Muscle actions
 Eccentric : Elongating of the muscle
 Concentric : Shortening of the muscle
 Isometric : Static hold

Planes of Movement

Warm-Up
 General
 Large muscle groups, generic movements, increase body temperature
 Specific
 Movement specific, muscle specific, low intensity

Flexion

Extension

Ad- & Abduction

Protraction &
Retraction

Elevation &
Depression

Internal & External
Rotation

Dorsi- & Plantar-
Flexion

Prone & Supine

Pronated, Supinated, &
Neutral Grips

 Pronated/Supinated
 Closed/Open
 Neutral
 Hook
Open
Hook
Closed

SSC
Main Points: Plyometrics
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Eccentric action immediately followed by a concentric action
Jump
 Take off 2 feet, land on 2
Hop
 Take off 1, land on the same
Skip
 A step followed by a hop
Leap
 Take off 1, land on the other
Difference between a walk and a run
 Walking: 1 foot is always in contact w/ the ground
 Run: Instances within the gait that both feet leave the ground