When these cross bridges contract, the muscle shortens and performs work.

When you die in a fire, your muscles shorten.

Why is the muscle shortening itself like this?

Concentric muscles contractions are those in which the muscle shortens.

Having to stay in bed for a long period of time may cause muscles to shorten (contractures).

These muscles have broad attachments compared to other muscle types and can shorten to about 40%-60% of their resting length.

"When muscles shorten, you are predisposed to joint injury."

Fundamentally, the muscle and its tendons shorten, resulting in reduced flexibility.

"You think the muscles will scar and shorten?"

Some patients develop contractures, when the muscle shortens and causes joints to stay bent; exercise can prevent this.