Isometric And Isotonic Contractions
Isometric And Isotonic Contractions

Isometric contraction (A) sustains the position of a joint without producing movement. Concentric (B) and eccentric (C) contractions are isotonic contractions in which the muscle changes length: concentric contractions by shortening and eccentric contractions by actively controlled lengthening (relaxation). CONTRACTION OF MUSCLES Skeletal muscles function by contracting; they pull and never push. However, certain phenomena—such […]

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Terms Of Movement 02
Terms Of Movement 02

Flexion and extension movements generally occur in sagittal planes around a transverse axis. Flexion indicates bending or decreasing the angle between the bones or parts of the body. For joints above the knee, flexion involves movement in an anterior direction. Extension indicates straightening or increasing the angle between the bones or parts of the body. Extension usually occurs in […]

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Terms Of Movement 01
Terms Of Movement 01

Flexion and extension movements generally occur in sagittal planes around a transverse axis. Flexion indicates bending or decreasing the angle between the bones or parts of the body. For joints above the knee, flexion involves movement in an anterior direction. Extension indicates straightening or increasing the angle between the bones or parts of the body. Extension usually occurs in […]

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