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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.
These range from mild sprains and lacerations to joint dislocations, broken bones and severe neck or head injuries. Trampoline deaths are rare, but they do occur. Most trampoline injuries occur in ...
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]
Sprains may be mild (first degree), moderate (second degree), or severe (third degree), with the latter two classes involving some degree of tearing of the ligament. Sprains can occur at any joint but most commonly occur in the ankle, knee, or wrist. [2] An equivalent injury to a muscle or tendon is known as a strain.
Strain vs. Time graph for the three stages of creep. Strain slowly rises up and almost becomes constant from a constant stress on a viscoelastic material. Like cartilage, it will deform or strain, from constant stress. The strain deformation is slow, but eventually too much stress will increase it.
Injury can be described as a ‘mechanical disruption of tissues resulting in pain.' [13] Despite the fact tissues can self-repair, muscle degradation occurs after repeated and prolonged use. [13] Overuse and strain injuries can occur at work, physical activity and daily life. [11]
Here's how to pinpoint when you're actually in this phase of life even if your symptoms (hot flashes, mood swings, stress, dryness) are nonspecific.
This can be caused by excessive external rotation, inversion or eversion of the foot caused by an external force. When the foot is moved past its range of motion, the excess stress puts a strain on the ligaments. If the strain is great enough to the ligaments past the yield point, then the ligament becomes damaged, or sprained. [5] [6]