Being active is vital for everyone at any age. But how men and women approach their fitness, especially strength training, might look slightly different after 40. That’s because our bodies undergo different hormonal and physical changes at this life stage.
Understanding these differences for men and women is key to getting the most out of your fitness, helping you build a body that feels and looks great, and tackling the specific health concerns that might come up or are already happening in your 40s.
For women
As you move through your late 30s and 40s, you’ll start to experience a naturally slower metabolism and changes in your energy levels. These are all normal parts of this stage of life, and understanding them can help you tailor your fitness approach to stay healthy and vibrant.
Navigating hormonal shifts: The role of strength training after 35
Around age 35, women’s bodies start to see changes in essential hormones like estrogen and progesterone. While the most significant drop happens later with menopause, these changes begin earlier and can affect how your body feels and reacts to exercise.
For example, lower estrogen levels can make your muscles take longer to recover after you work out, as estrogen helps improve muscle quality and strength. This is precisely why consistently challenging your muscles with resistance through strength training is vital, as it sends signals to your body to preserve and even build lean muscle, helping the body adapt to this hormonal change.
Building resilience: Preventing pain and injury through strength
Weak muscles are often silent contributors to discomfort and injury, although they’re rarely the sole cause. In many cases, persistent back pain may be linked to a weak core, knee issues may stem from underactive leg and glute muscles, and plantar fasciitis can sometimes be associated with tight calves or poor ankle stability.
By consistently strengthening key muscle groups throughout the body, you may improve your ability to handle everyday physical demands, such as lifting groceries, going for a walk, or staying active with hobbies. When muscles are better conditioned, they can help distribute force more efficiently, reducing excessive strain on your joints. Strength training also supports improved control and stability, especially around the hips and core, which can contribute to better balance and physical confidence. Crucially, often overlooked accessory muscles—like the rotator cuff, glute medius, and deep core muscles—play a vital stabilizing role. Targeting these with specific isolation movements further enhances joint protection and overall balance.
Crucially, as you age, the risk of fractures due to decreased bone density (osteoporosis) rises. Weight-bearing strength training when over 40 can help your bones stay strong and can help prevent these kinds of breaks as you age by stimulating bone growth and increasing bone density.
Preserving everyday function: Staying capable as you age
Beyond strength and posture, maintaining muscle mass and joint stability is essential for preserving your ability to live independently and enjoy daily activities as you get older. While this holds true for men, it is especially vital for women who may face unique physiological considerations as they age. Whether it’s climbing stairs, carrying groceries, or playing with your children, strength training helps you stay physically capable, confident, and resilient.
Building and maintaining strength is not just about fitness; it’s about preserving freedom and function well into later life.
Igniting metabolism: Strength training for fat loss and body composition
As you consistently build muscle through strength training, your body’s basal metabolic rate (BMR) naturally elevates. This means that your muscles will continue burning more calories even while at rest.
Beyond this metabolic boost, it’s important to know that muscle is denser and takes up less space than fat. This means that even if the number on the scale doesn’t change a lot, you might look and feel smaller as you gain muscle and lose fat. Additionally, active muscle tissue is metabolically demanding, increasing your resting calorie burn and making weight management easier, even during hormonal shifts that often promote fat storage.
It’s also important to note that spot reduction of fat is a myth; while exercises can strengthen specific muscles, overall fat loss occurs throughout the body. To effectively lose fat, you need to burn more calories than you eat through both exercise and healthy eating.
Finding alignment: Improving posture and body mechanics
Long hours of sitting and repetitive movement patterns can gradually lead to muscular imbalances and postural issues. While strength training alone isn’t a guaranteed fix, it can play a valuable role in helping to correct these patterns, especially when paired with proper mobility and awareness of daily habits.
For example, strengthening your posterior chain (back, glutes, and scapular stabilizers) and core, while mobilizing the often stiff area of the body such as shoulders, hips and upper spone may contribute to better alignment, improved joint stability, and more efficient movement.
Meanwhile, targeting your deep core muscles, particularly the transversus abdominis or the deepest layer of the abdominal muscle, can also help support spinal stability and may alleviate certain types of lower back discomfort. However, postural issues are often multifactorial and may require a more holistic approach that includes flexibility, ergonomics, and movement retraining.
To support you through these specific needs, Vigeo offers the option to work with a dedicated female fitness trainer. Our female trainers in Singapore possess a deep understanding of the hormonal shifts women experience during this time, as well as the potential impact on their bodies and exercise responses. With a female trainer, you can feel confident knowing your personal training program is designed with your needs, physical limitations, and experiences in mind.
For Men
Just like women, men’s bodies also change in their 40s. Although the hormonal shifts are typically more gradual than in women, this still emphasizes the importance of keeping up with strength training to stay healthy, feel energetic, and take care of their bodies for the long run.
Building a strong foundation: Maintaining bone density
Even though bone loss often occurs later in men, neglecting strength training in your 40s can accelerate that decline, raising the risk of fractures and mobility limitations over time. Resistance training has been shown to be an effective way to combat bone loss. Studies note that this kind of exercise can reverse age-related bone loss in older adult men.
This makes strength training for men in their 40s a smart way to build and keep strong bones. This can include workouts using weight machines, free weights, like dumbbells and barbells, and even using one’s own body weight to add resistance to movement and make muscles work harder and become stronger.
Protecting cognitive function: Reversing brain aging
Like your muscles and bones, your brain can also change as you age. One part of the brain that’s affected is important for learning and memory, called the hippocampus, which can gradually decrease in size as we age. In turn, the shrinking can potentially impact your cognitive function, such as reasoning, remembering, and decision-making.
Research shows that regular physical activity, including strength and aerobic training, may help increase and preserve hippocampus size. As a result, this can help reduce the risk of age-related cognitive decline and dementia. Other studies have also found that people who exercise regularly might have a lower chance of getting dementia compared to people who don’t exercise regularly.
Basically, staying active could help keep your mind healthy as you get older.
Preserving lean mass and boosting calorie burn
Sarcopenia, the age-related loss of muscle mass, also often begins to happen in men in their 30s. This decline in muscle can slow down your body’s metabolism and make it harder to do everyday physical tasks. And inactivity is a major culprit in losing muscle even faster, so it’s important for men in their 40s to make exercise a priority.
Eating healthy foods and being active regularly can help turn sarcopenia around, which can mean living longer and having a better quality of life. Simple exercises that make your muscles work, like squats push-ups, pull ups, lunges are simple but effective exercises if done consistently s, can also help manage and even reverse this muscle loss that can happen as you get older.
Supporting hormonal health: Preserving testosterone levels
Testosterone is a key hormone for men’s health, but it naturally begins to decrease after age 30. Although this decrease is gradual, maintaining healthy testosterone levels is important for muscle strength, bone health, mood, and overall well-being.
Studies have found that doing resistance training (HIIT) can help your body make more testosterone. Also, keeping a healthy weight is really important for men’s testosterone levels. This is because having too much body fat, especially around the abdomen, can actually cause your testosterone to go down.
Structuring your strength routine in your 40s
Entering your 40s doesn’t mean you need to overhaul your entire approach to fitness, but it does call for a strategic plan. Also, paying attention to how you feel is important as you get stronger and avoid injuries.
Here’s a simple way to set up your week and build strength in your 40s:
- Know how often you should do strength training when over 40: Aim for at least two to three times per week. And then build consistency by making it a regular part of your weekly routine, gradually increasing frequency or intensity as your body adapts and you feel more comfortable.
- Do a mix of compound exercises and accessory exercises. Compound exercises like squats, deadlifts, bench presses, and rows are highly efficient for building overall strength and burning calories. Meanwhile, accessory exercises, such as split squats, reverse planks, and feet-elevated bench presses, complement your main workouts by strengthening smaller or imbalanced muscles, leading to greater overall strength and helping you push past plateaus. By varying your routine with these targeted moves, you can also protect your joints and reduce wear and tear on your body, ultimately minimizing injury risk and enhancing performance.
- Consider how many sets and reps you’re doing. This depends on your goals, but the three common rep ranges are 3 to 5 sets of 2 to 6 reps per exercise for building strength, 3 to 4 sets of 6 to 12 reps for building muscle, and 2 to 3 sets of 12 to 20 reps for muscle endurance. The bottom line is that the weight and intensity should feel challenging, but you should still be able to do the exercises in good form. For the right rep range for you, it’s best to consult with a personal trainer for the best results.
- Keep challenging your muscles over time. This is called progressive overload. You can do this by lifting more weight, doing more reps or sets, or taking shorter breaks between exercises. To keep you accountable and help ensure consistent growth, track your progress with simple metrics, such as weights lifted, sets completed, or rest time between sets.
- Understand that strength training is just one part of staying healthy. Try to move your body daily in ways you enjoy, like walking, yoga, or taking the stairs. For lasting fitness, the key is to discover a balanced approach that you can consistently stick with.
Reaching your 40s is not a signal to slow down but an invitation to become even more intentional about your health and well-being.
Starting or returning to strength training in your 40s can feel daunting, but with the right support, it becomes empowering. At Vigeo, you’ll find fitness instructors committed to your overall well-being, alongside personal trainers for seniors who deeply grasp the specific considerations for those in their 40s and above. Plus, our supportive environment and expert guidance can make strength training an enjoyable and sustainable part of your journey to a healthier, more vibrant you in your 40s and beyond.
Ready to explore how Vigeo can help you build a stronger, healthier you in your 40s? Book a no-obligation consultation today, and let’s discuss your goals to get started in reaping the benefits.



