PATHOLOGY

Detailed explanation-1: -Overview. A muscle strain is an injury to a muscle or a tendon-the fibrous tissue that connects muscles to bones. Minor injuries may only overstretch a muscle or tendon, while more severe injuries may involve partial or complete tears in these tissues.

Detailed explanation-2: -It is a contraction-induced injury in which muscle fibers tear due to extensive mechanical stress. This mostly occurs as a result of a powerful eccentric contraction or over-stretching of the muscle.

Detailed explanation-3: -A muscle strain, or pulled muscle, occurs when your muscle is overstretched or torn. This usually occurs as a result of fatigue, overuse, or improper use of a muscle. Strains can happen in any muscle, but they’re most common in your lower back, neck, shoulder, and hamstring, which is the muscle behind your thigh.

Detailed explanation-4: -Tension stimulates muscle, tendon, ligament and in some cases neurological tissue. Overload with “tension” leads to sprains, strains and in some cases peripheral nerve injury. Examples: hamstring tear, patellar tendonopathy, brachial plexopathy, MCL tear.