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Joint Actions - Flexion Extension Abduction Adduction Rotation
Joint Action
Joints provide a fulcrum point for muscles to do work. There are
six types of joint action:
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JOINT ACTION
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MOVEMENT DESCRIPTION
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EXAMPLE MOVEMENT
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| Flexion |
decreasing joint angle |
Biceps Curl
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| Extension |
increasing joint angle |
Triceps Extension
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| Abduction |
movement away from body centerline |
Lateral Raises (Deltoids)
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| Adduction |
movement toward body centerline |
Horizontal Flyes (Pectorals)
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| Rotation |
rotation about and axis |
Twisting the Arm
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| Circumduction |
360 degree rotation |
Arm circle around
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Fitness Guide
& Training Manual - Main Page
Content Provided by International Fitness Association
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