Sarcopenia: Causes of Muscle Loss and Solutions
Sarcopenia is the age-related loss of muscle mass, strength, and physical function. It becomes more common with advancing age, but muscle loss is not an inevitable part of getting older—many factors can be addressed.
Common causes
- Aging: Hormonal and cellular changes can gradually reduce muscle-building capacity.
- Physical inactivity: Sitting for long periods or avoiding resistance exercise accelerates muscle loss.
- Insufficient protein or calories: Poor appetite, restrictive diets, or inadequate nutrition can make it harder to maintain muscle.
- Chronic illnesses: Conditions such as diabetes, heart or lung disease, kidney disease, and inflammatory disorders can contribute.
- Hospitalization or prolonged bed rest: Even relatively short periods of inactivity can cause significant weakness in older adults.
- Certain medications and lifestyle factors: Some medicines, excessive alcohol use, and smoking may contribute in particular circumstances.
What can help?
- Do resistance training: Strength exercises 2–3 times per week can help preserve and rebuild muscle. Start gradually and prioritize proper technique.
- Eat enough protein: Include protein-rich foods such as eggs, fish, dairy, beans, lentils, chicken, or other lean proteins throughout the day.
- Stay physically active: Walking, climbing stairs, balance exercises, and other regular movement support strength and independence.
- Get adequate nutrition and vitamin D: Avoid unintended weight loss and discuss vitamin D supplementation with a clinician if you may be deficient.
- Address underlying conditions: If muscle loss is rapid or accompanied by unexplained weight loss or weakness, a healthcare professional should look for contributing medical problems.
Important: If an older person is becoming noticeably weaker, having repeated falls, struggling to rise from a chair, or losing weight without trying, it’s worth getting evaluated. Sarcopenia can often be managed—and sometimes substantially improved—with appropriate exercise and nutrition.
