Muscle loss, also known as muscle atrophy, occurs when muscle cells shrink or degrade as a result of aging, illness, or lack of physical activity. This leads to reduced muscle strength, coordination, and mobility. Some key points about muscle loss:
- It can happen at any age, but is more common later in life. The medical term for age-related muscle loss is sarcopenia.
- Many factors can accelerate muscle loss, including poor nutrition, immobility, hormonal changes, and chronic diseases.
- Muscle cells require regular stimulation through activity and exercise. Without it, they start to weaken and shrink. "Use it or lose it" applies here.
- Lost muscle is harder to regain than building it originally. So prevention is key by staying active and eating a protein-rich diet.
- Aging - Starting around age 30, adults lose 3-5% of muscle mass per decade. This accelerates after age 60.
- Inactivity - Sedentary lifestyles with little exercise lead to gradual wasting of muscle over time.
- Malnutrition - Consuming inadequate protein and calories leads to breakdown of muscle for energy.
- Chronic diseases like cancer or heart failure
- Injuries requiring immobilization
- Medications including steroids and chemotherapy
- Muscular dystrophies and other muscle diseases
- Decreased strength - trouble lifting, pushing, or carrying objects
- Less endurance - tiring more easily from daily activities
- Clumsier movement and poorer balance
- Feeling physically weaker overall
- Noticeable shrinking of muscle size and definition
- Trouble getting up from chairs unaided or climbing stairs
- Increased number of falls or difficulty recovering balance
- Greater fatigue, tiredness, and reduced energy
- Engage in regular strength training and weight-bearing exercise
- Eat a diet high in protein sources like meats, dairy, beans, and eggs
- Get adequate calories to avoid weight and muscle loss
- Treat any underlying chronic illnesses
- Take medications and supplements that may improve muscle health
- Work on balance-training exercises to prevent falls