Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult your doctor before starting a new exercise programme, especially if you have a medical condition, injury, or have been inactive for a long period.
Turning 40 doesn't mean slowing down — but it does mean training smarter. Your body changes after 40, and what worked in your twenties might not be the best approach now. The good news is that South Africans over 40 are some of the most active people in the country — just look at the Comrades Marathon, where a significant portion of finishers are in the 40–60 age group, and the Two Oceans Ultra attracts thousands of runners in their forties and fifties every year.
This guide will explain the physiological changes that occur after 40, recommend the best joint-friendly exercise options, and give you a practical 4-week programme to start losing weight and building strength safely.
What Changes After 40?
Hormonal Shifts
After 40, both men and women experience hormonal changes that affect body composition:
- Women: Oestrogen and progesterone decline as perimenopause approaches, leading to increased abdominal fat storage, reduced muscle mass, and changes in mood and energy levels
- Men: Testosterone levels decline gradually from around age 30, with accelerating effects after 40 — reduced muscle mass, increased fat (especially visceral fat), and lower energy
These changes mean the same exercise and diet that worked at 30 may need to be adjusted. See our guide on losing visceral fat for targeted strategies.
Muscle Loss (Sarcopenia)
From around age 35, we lose approximately 3–8% of muscle mass per decade — a condition called sarcopenia. This slows metabolism and makes weight gain easier. The solution? Resistance training. Building and maintaining muscle after 40 is one of the most important things you can do for your long-term health and weight management.
Joint Health
Cartilage and joint lubrication naturally decline with age, making high-impact exercise more challenging. This doesn't mean you can't train hard — it means choosing the right exercises and prioritising warm-up and recovery.
Best Joint-Friendly Exercise Options for Over 40s
Low-Impact Cardio
- Walking: The gold standard for over-40 cardio. Check our walking for weight loss guide
- Swimming: Zero impact, excellent for joint health. Public pools across SA offer affordable lane swimming
- Cycling: Road cycling or stationary bike. Virgin Active and Planet Fitness have excellent cycling facilities
- Elliptical trainer: Gym-based, mimics running with minimal joint impact
Strength Training
Essential for preserving muscle mass. Focus on controlled movements, avoid ego-lifting, and prioritise compound exercises. See our strength training guide for detailed programmes.
Yoga and Pilates
Excellent for flexibility, core strength, and mental wellbeing. Many Virgin Active branches offer yoga and Pilates classes included in membership.
4-Week Exercise Plan for Over 40s
This plan balances cardio, strength, and recovery. Always include a 10-minute warm-up and cool-down.
| Day | Week 1 | Week 2 | Week 3 | Week 4 |
|---|---|---|---|---|
| Mon | Walk 25 min | Walk 30 min | Strength 30 min | Strength 35 min |
| Tue | Rest/Stretch | Strength 20 min | Walk 35 min | Cycle/Swim 30 min |
| Wed | Strength 20 min | Walk 25 min | Rest/Yoga | Strength 35 min |
| Thu | Rest/Stretch | Rest/Stretch | Strength 30 min | Walk 40 min |
| Fri | Walk 30 min | Strength 25 min | Walk 40 min | Rest/Yoga |
| Sat | Leisure walk | Swim/Cycle 30 min | Leisure swim | Strength 40 min |
| Sun | Complete rest | Complete rest | Complete rest | Complete rest |
Recovery: The Most Underrated Part of Training Over 40
Recovery becomes increasingly important with age. Your body takes longer to repair between sessions, and ignoring this leads to overuse injuries, fatigue, and burnout. Prioritise:
Sleep
Quality sleep is when your body repairs muscle tissue and releases growth hormone. Aim for 7–9 hours per night. Our article on sleep and weight loss explains the powerful connection between rest and fat loss.
Stretching and Mobility Work
Spend 10 minutes stretching after every workout. Focus on hip flexors, hamstrings, thoracic spine, and shoulders — the areas most affected by modern sedentary lifestyles.
Nutrition for Recovery
Protein intake is crucial for muscle repair. Consider a high-protein diet and ensure you're eating within 30–60 minutes after strength sessions. Rooibos tea (a South African staple) is rich in antioxidants and supports recovery.
Avoiding Common Mistakes Over 40
- Don't skip warm-ups — joints need more time to prepare than they did at 25
- Don't train through pain — distinguish between muscle soreness and joint pain
- Don't compare yourself to your 25-year-old self — progress at your own pace
- Don't neglect consistency over intensity — 4 moderate sessions per week beats 1 brutal one
40+ Is Not a Barrier — It's a Starting Point
Some of South Africa's most inspiring athletes are over 40. Start this 4-week plan, train smart, prioritise recovery, and combine exercise with our South African weight loss tips for a complete approach to health at any age.