Decreased muscle mass, known medically as sarcopenia, is a common condition characterized by loss of muscle tissue, muscle strength, and physical function. Muscle mass naturally declines with age, typically after 50 years old, but other factors like illness or inactivity can also lead to accelerated muscle loss at any age. The main causes of decreased muscle mass are:
- Aging - Starting around age 30, adults lose 3-5% of muscle mass per decade. After 50 this rate increases to 1-2% loss per year.
- Lack of exercise - Muscles need strength training and activity to maintain mass. Without it, they will weaken and atrophy over time.
- Poor nutrition - Consuming adequate protein, calories, vitamin D, and antioxidants is essential for muscle health. Deficiencies speed up muscle wasting.
- Illnesses - Chronic conditions like cancer, kidney disease, heart failure, and rheumatoid arthritis are linked to accelerated muscle loss.
- Feeling physically weaker and fatigued
- Difficulty performing daily tasks
- Weight loss, loose-fitting clothes
- Achy, tender muscles
- Frequent falls or trouble with balance
- Lifting weights
- Using resistance bands
- Bodyweight exercises like squats or push-ups
- Eating more fish, eggs, beans, and dairy
- Taking vitamin D and antioxidant supplements