Decreased muscle mass, also known as sarcopenia, is a common condition characterized by loss of skeletal muscle tissue, muscle strength, and physical function. It tends to happen as people get older, typically starting around age 30, and accelerates after age 60.
Some key points about decreased muscle mass:
- It is estimated that 5–13% of 60–70 year olds and 11–50% of those over 80 years old have sarcopenia. So it is very common.
- Several factors can contribute to loss of muscle, including:
- Age-related changes like decreased hormone levels and protein synthesis
- Lack of physical activity
- Inadequate intake of protein and calories
- Illnesses or chronic conditions
- Consequences can be serious, including:
- Loss of strength and mobility
- Increased risk of falls and fractures
- Impaired ability to perform daily tasks
- Reduced quality of life
- There are ways to slow muscle loss. Experts recommend:
- Engaging in resistance training and weight-bearing exercise
- Eating enough protein - up to 1.2 grams per kilogram of body weight per day
- Getting adequate vitamin D and antioxidant nutrients
- Managing chronic illnesses
In summary, decreased muscle mass involves the loss of skeletal muscle that occurs naturally but can be accelerated by lifestyle factors. It becomes increasingly common in older adulthood. Without preventive steps, it can lead to major loss of physical function. But a combination of exercise and good nutrition can slow muscle decline.
If you have any other questions, feel free to ask. I'll be happy to provide further information about decreased muscle mass and its causes.