What is the difference between muscle tone and atrophy?

Muscle tone and atrophy are two distinct conditions that affect the muscles.

Muscle tone refers to the slight, continuous contraction of muscles that keeps them in a state of readiness to move. This tone is maintained by the nervous system and helps to support the body, maintain posture, and protect joints.

Atrophy, on the other hand, refers to the wasting or shrinking of muscles. This can occur for various reasons, including:

* Disuse: When a muscle is not used, it can start to atrophy. This can happen due to immobilization, such as after a surgery, or due to certain neurological conditions that affect muscle movement.

* Aging: As people get older, they may experience muscle atrophy. This is due to a combination of factors, including reduced physical activity, decreased production of hormones such as testosterone, and changes in the nervous system.

* Malnutrition: A lack of certain nutrients, such as protein, can lead to muscle atrophy.

* Medical conditions: Certain medical conditions, such as cancer, heart failure, and chronic obstructive pulmonary disease (COPD), can lead to muscle atrophy.

* Medications: Some medications, such as corticosteroids, can cause muscle atrophy.

Muscle atrophy can lead to weakness, decreased range of motion, and impaired function. Treatment options may include physical therapy, occupational therapy, and surgery.