Flexion vs. extension: what’s the difference?

Flexion and extension are opposite movements that occur in the sagittal plane around a joint. They are initiated by agonist muscles and resisted by antagonist muscles. Some joints only allow flexion and extension, while others can perform multiple movements. In anatomy, flexion and extension are two opposite movements that muscles can perform around a joint. […]

What’s elbow flexion?

Elbow flexion is the bending of the arm at the elbow, used in daily activities and exercise. Weightlifting exercises, such as bicep curls, can strengthen the upper arm muscles involved in elbow flexion. Varying the position of exercises can work different muscles and affect the force generated. Elbow flexion is a movement that occurs when […]

Shoulder flexion: what is it?

Shoulder flexion is the movement of raising the arm forward, achieved through the glenohumeral joint and aided by muscles such as the pectoralis major, anterior deltoid, biceps, and others depending on arm rotation. Shoulder flexion is the action of raising the arm forward in front of the body. Initiated by the pectoralis major and anterior […]

Hip flexion pain: what causes it?

Hip flexors provide flexibility and stability for the leg, but sudden movements during sports can cause pain and injury. The rectus femoris, iliacus, and psoas major muscles make up the hip flexors, and strains or compensation for other injuries can cause pain. Recovery involves time, home care, and exercise plans. The hip flexors help provide […]

What’s plantar flexion?

Plantar flexion is the movement of the foot away from the body, performed by bending the ankle. It is used in many activities, including sports and everyday tasks, but can cause pain and injury. Strengthening exercises and treatments are available to prevent and treat plantar flexion injuries. Plantar flexion is the movement of the foot […]

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