You are never too old, and it is never too late, to get stronger.

Your strongest years can still be ahead of you.

Joint-friendly workouts, straightforward coaching and a supportive community for adults over 40 who want to feel strong, move well and stay capable.

Start my 7-day free trial Or start with a free guide

Adults over 50 in a strength-training session

10,000+coaching hours

1,000+adults helped

20kgGavyn's own transformation

40+our sole focus

Choose your best place to start.

You do not need to fix everything at once. Pick the resource that matches your most important goal right now.

Full Body Strength (Over 40)

A complete strength programme designed for adults over 40.

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Resistance Band Strength (Over 50)

Build strength at home with one simple, joint-friendly band.

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Walking Plan (Over 40)

Improve fitness, support fat loss and boost circulation.

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Calorie Deficit Blueprint (Over 40)

Ten practical steps to make weight loss simpler after 40.

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A plan you can follow. People who understand.

Stop guessing what to do next. Get sensible workouts, expert guidance and the encouragement to keep going, even when life gets busy.

Structured, joint-friendly workouts
Beginner and intermediate options
Strength, mobility and nutrition coaching
Direct support and accountability
A positive community of people just like you
New guidance every week

Explore Lifelong Strong

Try everything free for 7 days. Cancel any time.

Strength that shows up in everyday life

AGE 72

Stronger and doing more

Rhondda lost over 5kg, improved her lower-body strength by 25% and her upper body by 53%, and got back to gardening and badminton with confidence.

AGE 62

Back to confident movement

After two knee replacements, Richard progressed from needing help to stand to squatting and stepping up with confidence.

AGE 68

Confidence restored

Anthony rebuilt his strength, lost 8kg and rediscovered the confidence he thought he had left behind.

Gavyn Berntsen, founder of Fit Life After 40

Meet your coach. Hi, I'm Gavyn.

I've dedicated my career to helping adults over 40 get stronger without beating up their joints or living in the gym. After losing 20kg myself, I know how powerful it is to feel capable in your own body again.

Today I co-own New Zealand's only fitness studio built specifically for people over 40, and I've helped more than 1,000 people build strength that lasts. I'm a Functional Ageing Specialist and nutrition coach, a former New Zealand police officer, and a bit stubborn about the idea that your best years are behind you. They are not.

Train with me in Lifelong Strong

Your strongest years aren't behind you.

Train smarter, stay supported, and keep doing the things you love.

Try Lifelong Strong free