Flexion

Flexion is a positional term used in anatomy and physiology to describe the bending movement that decreases the angle between a segment and its proximal segment. It is the opposite of extension.

Overview

In anatomy, flexion is a position that is made possible by the joint angle decreasing. The skeletal and muscular systems in mammals are designed so that they can flex and extend. Flexion and extension are the basic medical terms used to describe the angles between the bones of the body.

Types of Flexion

There are two types of flexion deformation. They are, concentric and eccentric.

Concentric Flexion

Concentric flexion is a type of muscle contraction where the muscles shorten while generating force. This is typical of muscles that contract due to the sliding filament theory.

Eccentric Flexion

Eccentric flexion is a type of muscle elongation used in movement and locomotion, specifically in the lowering phase in resistance training to control the speed of movement.

See Also

• Extension (anatomy)
• Hyperextension
• Abduction (physiology)
• Adduction
• Rotation (anatomy)

References

Flexion Resources
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