If you have never properly done strength training — or have not done it since your 20s — starting after 40 can feel daunting. But after 18 years of introducing people in their 40s, 50s and 60s to strength training, I can tell you it is one of the most transformative things you can do for your body. This guide tells you exactly where to start.

Why Strength Training Is Especially Important After 40

Strength training counteracts sarcopenia — the natural loss of muscle mass that begins in our 30s. Without resistance training, the average person loses 3 to 5 percent of their muscle mass per decade. This loss reduces metabolism, increases the risk of injury, reduces bone density, and makes day-to-day physical tasks progressively harder.

Strength training is also the most effective tool for improving body composition after 40. It builds the muscle that raises your resting metabolic rate, and the combination of increased muscle and reduced body fat creates the physical changes that most people are looking for — without the need for extreme calorie restriction.

Strength training has profound benefits for hormonal health. It naturally supports testosterone production in men, helps manage the hormonal changes of perimenopause and menopause in women, and reduces cortisol over time — directly addressing belly fat storage.

How to Start Strength Training After 40

The most important principle when starting is to begin with less intensity and more technique focus than you think you need. The most common source of early injuries in over-40 beginners is progressing weight before form is solid.

A sensible starting programme involves three sessions per week on non-consecutive days — for example Monday, Wednesday and Friday. Each session should include five to six exercises covering the major movement patterns: a squat variation, a hinge variation, a push variation, a pull variation, and a core exercise. Session duration should be 40 to 50 minutes including warm-up.

A Beginner Strength Programme for Over 40s

Session A — Monday: Goblet Squat 3 sets of 12 reps, Dumbbell Row 3 sets of 10 each side, Incline Push-Up 3 sets of 10, Glute Bridge 3 sets of 15, Dead Bug 3 sets of 8 each side.

Session B — Wednesday: Romanian Deadlift 3 sets of 10, Shoulder Press 3 sets of 10, Lat Pulldown 3 sets of 12, Reverse Lunge 3 sets of 10 each leg, Plank 3 sets of 30 seconds.

Session C — Friday: Repeat Session A with slightly increased weight if form was solid on Monday.

This programme is appropriate for the first four to six weeks. After that, it should be progressed — either through increased weight, additional sets, or exercise variation. A qualified personal trainer can manage this progression safely and effectively.

Getting Started with Strength Training at NMG Fitness

NMG Fitness specialises in introducing men and women over 40 to strength training at UNTIL in Soho and Marylebone, London. The premium private environment means you can focus entirely on your training without distraction — ideal for learning technique and building the habit. Online strength training programmes are also available for clients across the UK.