Sarcopenia: Causes of Muscle Loss and Practical Solutions
Sarcopenia is the age-related loss of muscle strength, muscle mass, and physical performance. It becomes more common with advancing age, but it isn’t an inevitable part of getting older. Low activity, inadequate nutrition, illness, and certain medications can accelerate muscle loss.
What can cause muscle loss?
- Aging: Muscle mass and strength naturally decline over time, particularly without regular resistance exercise.
- Inactivity: Sitting for long periods, bed rest, or reduced activity can cause muscle to shrink surprisingly quickly.
- Not eating enough protein or calories: Muscles need adequate energy and protein to maintain and repair themselves.
- Chronic illness: Conditions affecting the heart, lungs, kidneys, liver, nervous system, or hormones can contribute to muscle loss.
- Inflammation: Some chronic diseases increase inflammation, which can promote muscle breakdown.
- Hormonal changes: Changes involving hormones such as testosterone, estrogen, thyroid hormones, and growth-related hormones can affect muscle and strength.
- Certain medications: Some long-term medications, particularly corticosteroids, can contribute to muscle weakness or loss.
💪 What actually helps?
1. Make resistance training the foundation
Strength training is one of the most effective ways to preserve or improve muscle and function.
Depending on your ability, this could include:
- Squats or chair stands
- Wall push-ups
- Resistance bands
- Light dumbbells
- Step-ups
- Leg raises
Aim for regular sessions at least twice a week, gradually increasing resistance as you become stronger.
If you have significant weakness, balance problems, or chronic medical conditions, ask a healthcare professional or physical therapist for an appropriate program.
2. Get enough protein
Protein provides the amino acids your body needs to maintain and build muscle.
Good choices include:
- Eggs
- Fish
- Chicken
- Greek yogurt
- Milk
- Cottage cheese
- Beans and lentils
- Tofu and other soy foods
- Nuts and seeds
Rather than focusing only on one huge protein-heavy meal, distributing protein across meals can be a practical strategy.
3. Don’t overlook calories
Older adults sometimes unintentionally eat too little because of reduced appetite, dental problems, difficulty cooking, or illness.
Not getting enough total calories can make it harder to maintain muscle, even when protein intake is reasonable.
4. Stay physically active
Resistance training is especially important for muscle, but walking, cycling, swimming, and other activities help maintain cardiovascular fitness and independence.
For older adults, balance exercises are also valuable because preventing falls is an important part of preserving mobility.
