Muscle loss

What is muscle loss?

Muscle loss, known medically as muscle atrophy, occurs when muscle cells shrink and the muscles become weaker. This can happen due to aging, illnesses, injuries, or inactivity.

Some key points about muscle loss include:

• What causes it? Muscle loss can be caused by aging, illnesses, injuries, inactivity, poor nutrition, hormonal changes, and more. As we get older, muscles naturally atrophy. Certain medications and health conditions also contribute.


• What are the risks? Losing muscle mass decreases strength and mobility, raising the risk of falls and fractures. It also slows metabolism, potentially leading to weight gain and associated illnesses.


• Can it be prevented? Engaging in strength training and getting enough protein can help maintain muscle mass. Some supplements may also help, but check with your doctor first. Renewal Hormone Center offers customized fitness and nutrition plans utilizing the latest science to help patients preserve their muscle strength into older age.


• What are the symptoms? Symptoms include feeling weaker, fatigue, shrinkage of muscle size, trouble with balance, increased joint pains, and unplanned weight loss.


• How is it diagnosed? Doctors can diagnose muscle atrophy based on symptoms, physical exams, strength tests, and sometimes MRI scans to visualize the condition of muscles.


• How is it treated? Treatment focuses on addressing the underlying cause, improving nutrition, exercising, taking medications or supplements in some cases, and managing related health conditions. Building strength through resistance training and high-protein diets can help rebuild muscle.

What Muscle Groups Are Most Impacted?

The muscles most prone to atrophy include:

• Leg muscles


• Shoulder muscles


• Spinal muscles


• Forearm and hand muscles

Muscle loss often starts in the legs and core, then progresses to the arms and upper body over time.

"I first noticed muscle loss in my thighs and glutes in my late 40s. Now in my 60s, keeping muscle has become much more challenging."

Can Muscle Loss Be Reversed Once It Starts?

The good news is that lean muscle mass can often be rebuilt through exercise and improved nutrition at any age. However, it becomes more difficult over time.

• Resistance training is key - this involves strength training exercises using weights, bands, or even bodyweight. Focusing on hard-hit muscle groups with 2-3 sessions per week can stimulate muscle growth.


• Getting enough protein - at least 0.5g per pound of body weight per day - gives muscles the fuel they need to repair and rebuild.

While some muscle loss is inevitable with aging, taking proactive steps can slow progression and help you stay strong, active and independent. Speak to your healthcare provider to address any concerns.