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As we grow older, our bodies naturally undergo a variety of changes—one of the most noticeable (and often frustrating) being a decline in muscle mass and strength. This process, known as sarcopenia, is a normal part of ageing, but that doesn’t mean it’s inevitable or irreversible. In fact, science and countless personal stories show that resistance training (also called strength training) is one of the most effective ways to combat muscle ageing—and even reverse some of its effects.

In this blog, we’ll explore what happens to our muscles as we age, why resistance training is such a powerful antidote, and how you can get started no matter your current age or fitness level.

What Is Muscle Ageing?

Muscle ageing, or sarcopenia, typically begins around the age of 30 and accelerates after 60. On average, adults can lose 3–8% of their muscle mass per decade. This leads to:

• Reduced strength
• Slower metabolism
• Decreased mobility
• Greater risk of falls and fractures
• Reduced ability to perform everyday tasks
• The causes of muscle ageing include:
• Hormonal changes (such as reduced testosterone and growth hormone)
• Neurological decline (less efficient nerve-muscle communication)
• Increased inflammation
• Reduced physical activity
• Nutritional deficiencies, especially in protein
•  

Without intervention, these changes can lead to frailty, poor quality of life, and even increased mortality. But here’s the good news: resistance training can significantly slow or even reverse these effects.

What Is Resistance Training?

Resistance training is any form of exercise that causes muscles to contract against an external resistance. This includes:

• Bodyweight exercises (push-ups, squats, lunges)
• Free weights (dumbbells, barbells, kettlebells)
• Resistance bands
• Weight machines
• Functional training using everyday movements with added load

The goal is to improve muscular strength, endurance, and size by challenging the muscle fibers enough to stimulate growth and adaptation.

How Resistance Training Combats Muscle Ageing

Increases Muscle Mass and Strength
The most obvious benefit of resistance training is that it builds muscle—and this is especially important as we age. When you lift weights or do resistance-based bodyweight movements, you’re sending a message to your muscles that they are still needed.

In response, your body activates muscle protein synthesis, the process by which new muscle tissue is built. Even people in their 60s, 70s, and beyond can gain significant muscle mass through consistent training.

A landmark study published in The Journal of the American Geriatrics Society found that adults in their 90s who performed resistance training for just 8 weeks increased muscle strength by over 100%.

Boosts Metabolism
Muscle tissue is metabolically active, meaning it burns more calories than fat tissue, even at rest. By increasing muscle mass, resistance training helps boost your resting metabolic rate. This can counteract age-related weight gain and help maintain a healthy body composition.

Improves Bone Density
Ageing also leads to a decline in bone density, increasing the risk of osteoporosis and fractures. Resistance training puts stress on the bones in a safe and controlled way, which stimulates osteoblast activity—the process that forms new bone. This makes your bones stronger and more resilient over time.

Enhances Mobility and Balance
One of the greatest risks associated with muscle ageing is reduced balance and coordination. This can lead to falls, which are a major cause of injury in older adults. Strengthening the muscles in the legs, core, and hips significantly improves postural control and balance, making day-to-day activities safer.

Improves Insulin Sensitivity and Blood Sugar Control
Resistance training enhances glucose uptake in muscle cells, which helps regulate blood sugar levels and improves insulin sensitivity. This is particularly important for preventing or managing type 2 diabetes, which becomes more common with age.

Supports Mental Health and Cognitive Function
Numerous studies have linked resistance training to improved mental health, reduced symptoms of depression and anxiety, and even better cognitive function in older adults. The combination of physical effort, goal setting, and neural stimulation can keep the brain sharper for longer.

Getting Started: Resistance Training at Any Age

You don’t need to be an athlete or join a gym to benefit from resistance training. It’s never too late to start, and the benefits can be felt at any age—even if you’ve never exercised before.

Here are some simple tips to help you get started:

• Start with Bodyweight Movements
• Begin with exercises such as:
• Squats (to strengthen legs and hips)
• Push-ups (on knees if needed) for chest and arms
• Planks for core stability
• Chair sits/stands to simulate real-life movement

These are great for learning proper technique and building foundational strength.

Use Resistance Bands or Light Dumbbells

Once you’re comfortable with bodyweight movements, start incorporating bands or weights. Choose a resistance that allows you to perform 10–15 repetitions with good form, but feels challenging by the last few reps.

Aim for 2–3 Days a Week
Research suggests that training each muscle group twice a week yields optimal results. Keep sessions to around 30–45 minutes and focus on all major muscle groups: legs, chest, back, shoulders, arms, and core.

Rest and Recover
Muscles need time to repair and grow. Make sure to rest each muscle group for 48 hours before working it again. Rest days are just as important as training days.

Stay Consistent
Like all good things, results come with consistency. Start small and build from there. Track your progress, celebrate wins, and don’t worry about perfection—just keep showing up.

Common Myths About Resistance Training and Ageing

“I’m too old to lift weights.”
Wrong! You’re never too old. Studies have shown that even people in their 80s and 90s can build strength with the right training program.

“It’s dangerous.”
When done with proper form and supervision, resistance training is safe and has a lower injury rate than many other forms of exercise. A qualified trainer or physiotherapist can guide you safely through a tailored program.

“It will make me bulky.”
Building large muscles takes intense effort and specific genetics. Most people, especially women, will gain tone, not bulk—with leaner limbs and a stronger core.

The Bigger Picture: Aging Stronger, Not Weaker

Beyond muscle mass and strength, it enhances your quality of life—helping you carry groceries, climb stairs, play with grandkids, travel, and live life on your terms.

So whether you’re 40 or 75, now is the best time to start. Your future self will thank you.

Ready to Take the First Step?

Call 0420 998 460 to book your free 30-minute consultation, or visit www.pickspt.com.au to learn more.