Why Resistance Training Matters More As You Age (And What I See When You Don’t)

I work in operating theatres — both orthopaedic and general surgery. Every week, I see the inside of what happens when the human body hasn’t been looked after. Not in a judgemental way. In a heartbreaking, preventable way.

I see it in the fragility of muscles that have wasted away. In the bones that shatter from a fall that a stronger body might have survived. In the long, difficult recoveries that take twice as long because there was no physical reserve to draw from going in.

This article isn’t about vanity. It’s not about lifting heavy weights or looking a certain way. It’s about one of the most important things you can do for your future self — and it’s something most people aren’t doing nearly enough of.

What Happens to Our Bodies As We Age

From around our mid-30s, we begin losing muscle mass at a rate of roughly 3–8% per decade. After 60, that rate accelerates. This process is called sarcopenia, and it is one of the most underappreciated health crises of our time.

Muscle loss isn’t just about strength. It affects:

• Balance and coordination — increasing your risk of falls

• Bone density — muscles pulling on bones is what keeps them strong

• Metabolism — muscle tissue burns more energy at rest than fat

• Joint stability — muscles protect and support every joint in your body

• Independence — your ability to get off the floor, carry shopping, climb stairs

And here’s the uncomfortable truth: if you’re not actively working to maintain and build muscle, you are losing it. Inactivity isn’t neutral. It’s a slow decline.

What I See in Theatre

When someone comes into an orthopaedic theatre for a hip or knee replacement, or into general theatre for an abdominal procedure, their physical condition shapes almost everything about what happens next.

I’ve seen patients who are strong, active, and well-conditioned walk out of difficult surgeries and recover in ways that surprise even their surgical teams. I’ve also seen the other side — patients with significant muscle wasting, poor grip strength, and frail frames facing complications, longer hospital stays, and recoveries measured in months rather than weeks.

The medical term for this is prehabilitation — the idea that preparing your body before a procedure dramatically improves outcomes after it. But the honest truth is, most people don’t know they’ll ever need surgery until they do.

Why Resistance Training Specifically?

Walking is wonderful. Yoga has real benefits. But when it comes to preserving muscle, protecting bones, and building the kind of physical resilience that changes surgical outcomes — resistance training is in a category of its own.

Here’s why:

1. It directly combats sarcopenia

Lifting weights, using resistance bands, or doing bodyweight exercises sends a signal to your muscles to maintain and grow. It’s the only reliable stimulus that does this.

2. It protects your bones

Weight-bearing and resistance exercise increases bone density, reducing the risk of osteoporosis and fractures. In orthopaedic theatres, we see the consequences of brittle bones regularly — and many cases are not inevitable.

3. It improves balance and reduces falls

Stronger legs and a more stable core mean better coordination and reaction time. Falls are one of the leading causes of serious injury and hospitalisation in older adults. Resistance training directly reduces that risk.

4. It supports metabolic health

Muscle tissue is metabolically active. Building and maintaining it helps regulate blood sugar, reduce inflammation, and lower the risk of type 2 diabetes — all of which affect surgical risk and recovery.

5. It builds reserve capacity

Think of it like a savings account. You build it up when times are good, so that when your body faces a major demand — illness, injury, surgery, infection — it has something to draw from.

“But I’m Too Old to Start”

No. You’re not.

Research consistently shows that people in their 60s, 70s, and even 80s respond to resistance training. The adaptations are real. The gains in strength and muscle are real. It is never too late to begin.

What changes with age is the recovery time between sessions, and the importance of good technique and progressive loading. That’s where working with a qualified professional — a personal trainer, physiotherapist, or exercise physiologist — can make a significant difference, particularly if you’re returning to exercise after a long break or managing an existing condition.

Where to Start

You don’t need a gym membership or fancy equipment. You need consistency and progressive challenge. Some starting points:

• Bodyweight squats — one of the most functional movements you can do

• Resistance band rows and presses — joint-friendly and highly effective

• Step-ups — build leg strength and improve balance simultaneously

• Deadlifts (with proper coaching) — arguably the most useful exercise for everyday life

Aim for two to three sessions per week, with at least one rest day between. Track your progress. Add challenge gradually. And don’t underestimate rest and nutrition — protein intake becomes increasingly important as we age to support muscle maintenance.

A Final Word From the Theatre

I don’t write this to scare you. I write it because I have a perspective that most people never see — and it has changed how I think about my own health and how urgently I want to share this message.

The patients who recover best are the ones who invested in their bodies before they ever needed to. The ones who lifted weights, stayed active, and kept their muscle. They didn’t know they’d need surgery. They just made the choice, consistently, to look after themselves.

Your future self — whether they face a procedure or simply want to carry their grandchildren, walk without pain, or get up off the floor unaided — is counting on what you do today.

Start now. Even small steps compound into something remarkable.

Stay strong, stay focused.