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A sprain is a soft tissue injury of the ligaments within a joint, often caused by a sudden movement abruptly forcing the joint to exceed its functional range of motion. Ligaments are tough, inelastic fibers made of collagen that connect two or more bones to form a joint and are important for joint stability and proprioception , which is the ...
A strain is an acute or chronic soft tissue injury that occurs to a muscle, tendon, or both. The equivalent injury to a ligament is a sprain . [ 1 ] Generally, the muscle or tendon overstretches and partially tears, under more physical stress than it can withstand, often from a sudden increase in duration, intensity, or frequency of an activity.
A strain is a type of acute injury that occurs to the muscle or tendon. Similar to sprains, it can vary in severity, from a stretching of the muscle or tendon to a complete tear of the tendon from the muscle. Some of the most common places that strains occur are in the foot, back of the leg (hamstring), or back. [2]
Ankle sprains are classified as grade 1, 2, or 3, [8] and, depending on the amount of damage or the number of ligaments that are damaged, each sprain is classified from mild to severe. A grade 1 sprain is defined as mild damage to a ligament or ligaments without instability of the affected joint.
Nerve compression is a result of poor posture, prolonged computer use is an example of repetitive strain injury which affects the musculoskeletal system. [16] [2] Whiplash injury, whereby the force causes strain to the capsule and ligaments of the apophyseal joints of the cervical spine. [7]
A Lisfranc sprain or fracture is an injury in the middle of the foot in which at least one (or sometimes, all) of the small bones (or metatarsals) is broken or the ligaments that support the foot ...
Inversion Ankle Sprain: landing on an uneven surface sprains the ankle. Swelling, localized pain, difficulty bearing weight, and limping are signs of an inversion ankle sprain. [23] Eversion Ankle Sprain: injury related to the ankle turning outward or rotating externally. A typical symptom of eversion ankle sprain is excruciating pain that ...
Over-extension of the ligaments and tendons can result in sprains and strains, respectively. [25] Repetitive sedentary behaviors such as extended use of a computer or a physically repetitive occupation may cause a repetitive strain injury. [26] Extended use of brightly lit screens may also cause eye strain. [27]