Exercise Is Medicine: Preventing Sarcopenia Through Movement

As a sports medicine physician, I’ve spent my career helping professional athletes as well as non-athlete patients stay active and recover from injuries. But one of the most important conversations I have—especially with my older patients—isn’t about healing a sprain or improving a running gait. It’s about muscle loss. Specifically, sarcopenia, the gradual loss of muscle mass, strength, and function that occurs with aging.

Understanding Sarcopenia

Sarcopenia typically begins as early as our 30s, accelerating around age 60. It’s a natural part of aging, but it’s far from inevitable. Without intervention, sarcopenia can lead to frailty, falls, loss of independence, and a decline in overall quality of life. What’s often overlooked is how preventable this condition is. And the prescription? Exercise—specifically strength training.

While some degree of muscle loss may be unavoidable with age, lifestyle factors play a massive role. Inactivity, poor nutrition (particularly insufficient protein), and chronic inflammation can all hasten sarcopenia. On the flip side, consistent resistance training and adequate dietary protein can help preserve and even build muscle well into your 70s, 80s, and beyond.

Why Exercise Works

When we place controlled stress on our muscles through strength training, we stimulate the repair and growth of muscle fibers. This response doesn’t stop at a certain age. In fact, older adults often gain strength more quickly than they expect once they begin a training program. Additionally, exercise improves balance, coordination, and bone density—all crucial to maintaining mobility and preventing falls.

Movement Rx: What to Do

If you’re new to exercise, or returning after a long break, start slow. The key is consistency and progression. Here are a few recommendations I give to patients:

1. Resistance Training – 2 to 3 Days/Week
   Focus on major muscle groups: legs, hips, back, abdomen, chest, shoulders, and arms. Bodyweight exercises like squats, wall push-ups, and resistance band movements are excellent starting points. For those who are able, dumbbells or machines can add helpful resistance.
   
2. Balance and Core Work – 2+ Days/Week
   Incorporate exercises like single-leg stands, heel-to-toe walking, or using a balance board. Pilates and yoga are also beneficial and can be adapted for any fitness level.
   
3. Aerobic Activity – Most Days of the Week
   Walking, biking, swimming, or any low-impact cardio keeps the heart healthy and supports overall mobility. Aim for 150 minutes per week of moderate-intensity activity.
   
4. Don’t Forget Nutrition
   Protein intake is crucial. Most older adults need more than they realize—about 1.0 to 1.2 grams per kilogram of body weight daily. A registered dietitian can help tailor this to your needs.

Final Thoughts

Sarcopenia isn’t a fate we have to accept—it’s a challenge we can rise to meet. Through regular, purposeful movement and good nutrition, we can maintain our strength, independence, and joy of movement at every stage of life. As I often tell my patients, you don’t stop moving because you get old—you get old because you stop moving.

So, find an activity you enjoy, make a plan, and get moving!