Where do skeletal muscle strains most commonly occur?

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Multiple Choice

Where do skeletal muscle strains most commonly occur?

Strains happen where the force from contracting muscle is transmitted into tendon and bone, and the myotendinous junction is the spot where this force transfer is most concentrated. At this junction, the contractile muscle fibers meet the tendon, and during rapid or forceful lengthening (eccentric) contractions the tissue experiences high tensile and shear stress. This combination makes microscopic tears more likely here, so many acute muscle strains occur at the myotendinous junction. For example, hamstring strains during sprinting or sudden lunges often tear right where the muscle blends into tendon. By contrast, tearing that occurs in the muscle belly is less typical for a classic strain, insertional injuries involve the tendon at its bone attachment, and nerve entrapment is not a muscle tear at all.

Strains happen where the force from contracting muscle is transmitted into tendon and bone, and the myotendinous junction is the spot where this force transfer is most concentrated. At this junction, the contractile muscle fibers meet the tendon, and during rapid or forceful lengthening (eccentric) contractions the tissue experiences high tensile and shear stress. This combination makes microscopic tears more likely here, so many acute muscle strains occur at the myotendinous junction. For example, hamstring strains during sprinting or sudden lunges often tear right where the muscle blends into tendon. By contrast, tearing that occurs in the muscle belly is less typical for a classic strain, insertional injuries involve the tendon at its bone attachment, and nerve entrapment is not a muscle tear at all.

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