3 / How to Build a Body That Stays Strong as You Age

In the previous article, we established the foundations: resistance training, cardiovascular activity, balance, adequate protein and enough recovery to allow the body to adapt. Now we need to take the next step, because simply doing exercise is not quite the same as training your body to remain capable.

Your body adapts remarkably well to what you repeatedly ask it to do. That is both the good news and the problem. Walk the same route at the same pace every day and eventually it becomes easy. Lift the same weights for the same repetitions every week and eventually your muscles have little reason to become stronger. Perform the same comfortable workout for years and you may remain active, but you are no longer necessarily building physical reserve.

Healthy ageing requires some progression. Not relentless intensity and certainly not punishment, but enough challenge to keep asking the body to adapt.

Understand what training is actually trying to achieve

Exercise can have many purposes. A walk can clear your head, yoga can feel wonderful, swimming can be enjoyable and a dance class may be the highlight of your week. All of those things have value.

Training is slightly different because it has a specific physiological objective. If the objective is greater strength, the programme needs to progressively challenge strength. If it is better cardiovascular fitness, the heart and circulatory system need an appropriate aerobic stimulus. If it is better balance, balance needs to be challenged.

This sounds obvious, but it explains why someone can exercise regularly and still become weaker with age. Being active and specifically training the physical qualities you want to preserve are not always the same thing.

Ideally, we do both.

Progressive overload is the principle that changes your body

Your muscles respond to demands placed upon them. If those demands are greater than they are accustomed to, the body has a reason to adapt.

This is the principle of progressive overload.

Imagine you begin squatting with a 5 kg weight and ten repetitions feel difficult. Several weeks later, those same ten repetitions feel easy. That is good news. Your body has adapted.

But if you continue doing exactly the same thing indefinitely, the stimulus becomes smaller because you are now stronger. Progress may eventually stop.

At that point you could increase the weight, perform more repetitions, add another set, improve the range of movement or progress to a more challenging version of the exercise.

You do not need to increase something every workout. Progress is rarely perfectly linear, particularly as we get stronger. The important thing is that six months from now you should ideally be capable of doing something you cannot comfortably do today.

That is a far more meaningful measure of progress than how many calories your watch says you burned.

What does sufficiently challenging actually mean?

You do not have to train until complete muscular failure to become stronger, but your muscles do need to work.

One practical way to judge resistance is to consider how many good repetitions you could still perform at the end of a set. If you finish ten repetitions and could easily perform another fifteen, the exercise probably isn't providing much of a strength stimulus.

If you finish and feel you could perhaps perform another two or three good repetitions before technique deteriorates, the set is considerably more challenging.

Beginners do not need to push particularly close to failure. Learning good technique and building tolerance to training comes first. As experience increases, effort can increase too.

The aim is not to make every workout brutal. It is to ensure your muscles periodically receive a signal strong enough to say, we need to become better at this.

Strength and muscle size are related, but they are not identical

Becoming stronger does not depend solely on making muscles larger.

When you begin resistance training, some of the earliest strength improvements come from the nervous system becoming better at recruiting and coordinating muscle fibres. Your brain and muscles essentially become more efficient at performing the movement.

Over time, resistance training can also stimulate muscle hypertrophy, an increase in muscle fibre size. Adequate protein, energy intake, training volume, intensity, genetics and recovery all influence this process.

Both matter as we age.

We want sufficient muscle tissue, but we also want that tissue to function effectively. A larger muscle that cannot produce useful force is not our goal, nor is being technically strong in one gym exercise while lacking the capacity to perform everyday tasks.

We are building usable strength.

Train movements that translate into life

You don't need dozens of complicated exercises.

A well-designed resistance programme generally includes variations of several fundamental movement patterns. Squatting trains the pattern used when sitting down and standing up. Hip-hinge movements strengthen the posterior chain used when lifting objects from the floor. Pushing and pulling develop upper-body strength, while loaded carries challenge grip, trunk stability and the ability to move while carrying weight.

The exact exercise can change according to your body. A squat might initially mean repeatedly standing from a chair. Later it might become a goblet squat holding a dumbbell and eventually something more challenging.

A push-up may begin against a wall, progress to a bench and eventually reach the floor. A hip hinge can be learned without weight before progressing to a deadlift variation.

The movement does not have to look impressive. It needs to become progressively more demanding as your capacity improves.

Grip strength tells us more than whether you can open a jar

Grip strength has become an interesting marker in healthy-ageing research because lower grip strength is associated with poorer health outcomes, disability and mortality.

That does not mean weak hands cause all of those problems. Grip strength is partly useful because it can act as a simple indicator of overall strength and physical function.

You can train grip indirectly by carrying weights, performing pulling exercises and simply handling progressively heavier loads. Loaded carries, where you walk while holding dumbbells or kettlebells, are particularly practical because they simultaneously challenge grip, trunk stability, posture and walking under load.

Think about the real-world equivalent: carrying shopping bags, moving a suitcase or picking up something heavy and transporting it safely.

That is physical independence in disguise.

Muscle power deserves a place in your programme

Strength tells us how much force you can produce. Power combines force with speed.

Imagine getting out of a chair slowly. That requires strength. Now imagine you stumble and have half a second to move your foot and stop yourself falling. That requires the ability to generate force quickly.

Power tends to decline more rapidly with ageing than maximal strength, which makes it particularly relevant to maintaining function.

Training power does not mean performing dangerous explosive exercises. Once a good strength foundation exists, some movements can simply be performed with greater intention to move quickly during the lifting phase while remaining controlled.

Standing up from a chair with purposeful speed, for example, can become a basic power exercise. More experienced women may progress to appropriately programmed faster resistance movements, medicine-ball work or impact exercises.

The level depends entirely on the individual.

The principle is what matters: we don't only want the ability to produce force. We want to retain the ability to produce it when we need it quickly.

Bone needs progressive challenge too

Bone adapts to mechanical loading, but just like muscle, it can become accustomed to familiar forces.

Resistance training can provide useful skeletal loading, particularly when exercises progressively become more demanding. Weight-bearing and impact activities can provide additional stimuli depending on the person and the skeletal sites we are trying to protect.

This does not mean a woman diagnosed with osteoporosis should start jumping around her living room after reading this article. Fracture history, bone density, balance, spinal health and other medical factors affect which exercises are appropriate.

But the broader principle is important. Bone responds to load, not simply movement.

If bone health is one of your priorities, your training programme should reflect that rather than relying solely on walking, supplements and hope.

Now build your cardiovascular engine

Strength determines what you can lift. Cardiovascular fitness determines how long and how intensely your body can keep working.

One important measure is VO2 max, which describes the maximum amount of oxygen your body can use during intense exercise. It reflects the combined ability of your lungs, heart, circulation and muscles to deliver and use oxygen.

You do not need laboratory VO2 testing to improve cardiovascular fitness. You simply need to challenge the aerobic system appropriately.

Much of your aerobic activity can be performed at a moderate intensity where your breathing is clearly increased but you can still speak. This builds a strong aerobic base and can come from brisk walking, cycling, swimming, hiking, dancing or other activities.

As fitness improves, some higher-intensity work may provide an additional stimulus if it is appropriate for you.

The mistake is assuming every exercise session has to be hard. A strong cardiovascular programme can contain plenty of moderate work and relatively small amounts of genuinely intense work.

Higher intensity has a role, but earn it first

Intervals can be useful because they allow brief periods of harder cardiovascular work separated by recovery.

For someone relatively new to exercise, this could simply mean alternating a brisk uphill walk with easier walking. As fitness improves, intervals can become progressively more demanding.

High-intensity interval training, or HIIT, is one way to structure this, but the term has become so fashionable that women sometimes believe they must perform exhausting HIIT workouts to obtain cardiovascular benefits.

They don't.

Build the base first. Develop strength. Make sure joints tolerate the activity. Learn how your body responds. Then introduce greater intensity strategically.

The objective is to increase capacity, not to spend every workout proving that your heart rate can reach an impressive number.

Balance training needs to become progressively harder too

Standing on one leg is useful if standing on one leg is difficult.

Once it becomes easy, repeating exactly the same exercise provides less challenge. Just like strength training, balance work needs progression.

You might narrow your base of support, move your head, reach in different directions, stand on a less stable surface or combine balance with another task. Strengthening the legs and improving reaction speed also contribute to fall prevention.

The real world rarely gives us a warning before balance is challenged. You step off an unexpected curb, slip on wet tiles or turn quickly when someone calls your name.

Balance training is therefore not about becoming excellent at one static exercise. It is about helping the nervous system continually integrate information from your eyes, inner ear, joints and muscles while your body moves.

Train the ability to get off the floor

This is one of my favourite functional goals because it combines so many abilities.

Getting down to the floor and back up requires strength, mobility, balance, coordination and confidence.

If you can do it easily, keep doing it.

If you cannot, that is not something to be embarrassed about. It is useful information. Break the movement into parts and train what is limiting you. Perhaps leg strength needs improving. Perhaps hip or ankle mobility is restricted. Perhaps balance is the problem.

A physiotherapist or knowledgeable trainer can help if necessary.

The reason this matters is practical. At some point in life, you may end up on the floor unexpectedly. Being capable of getting yourself back up is a form of independence worth training for.

Protein needs to support the training stimulus

Resistance training stimulates muscle protein synthesis, but adaptation also requires amino acids.

As discussed in the previous article, many healthy older adults may benefit from protein intakes above the minimum adult recommendation, with individual needs depending on body size, activity, health and other factors.

Protein quality matters too. The amino acid leucine plays an important signalling role in stimulating muscle protein synthesis. Animal proteins such as dairy, eggs, fish and meat tend to contain relatively high amounts of leucine, while plant-based diets can absolutely provide sufficient protein but may require more attention to total intake and protein sources.

You do not need to calculate the leucine content of every meal.

The practical message is to include a meaningful amount of protein at several meals across the day, rather than eating very little until dinner.

Training sends the message. Nutrition provides the materials.

Creatine is one supplement worth discussing

I am deliberately cautious about supplements throughout these articles, but creatine monohydrate deserves a mention because it has a substantial research base.

Creatine helps replenish phosphocreatine, which supports rapid ATP production during high-intensity muscular work. Supplementation can improve strength and training performance and may support increases in lean mass when combined with resistance training.

There is also growing research interest in creatine and cognitive function, particularly under certain conditions, although the evidence for brain benefits is not as established as its role in exercise performance.

Creatine occurs naturally in foods such as meat and fish, and the body also synthesises it.

For many healthy adults, creatine monohydrate is generally well studied and relatively inexpensive. But supplements should still be considered in the context of individual health, medications and kidney function where relevant.

And importantly, creatine without resistance training is not a replacement for resistance training.

Recovery determines whether training becomes adaptation

There is a seductive idea that the most disciplined person is the one who does the most.

Physiology does not work like that.

Training temporarily disrupts homeostasis. Muscle fibres experience mechanical stress, energy stores are used and the nervous system is challenged. The body then responds during recovery by repairing and adapting.

If sufficient recovery never arrives, performance can stagnate or deteriorate.

Sleep is therefore part of your training programme. So is adequate nutrition. Rest days are not evidence of laziness, and an easier week after a demanding training block does not mean you are losing progress.

Women dealing with severe menopause symptoms, significant insomnia, illness or major psychological stress may temporarily have less recovery capacity available. Training can be adjusted without abandoning it.

The best programme is not the hardest programme you can survive. It is the programme from which you can consistently recover and improve.

Stop measuring exercise by calories

This may be one of the most liberating changes you can make.

The calorie number on your watch tells you almost nothing about the quality of the training stimulus.

A strength session may display relatively few calories while providing exactly the mechanical stimulus your muscle and bone need. A short interval session may improve cardiovascular capacity without producing a spectacular calorie total. Balance training barely registers at all, yet could eventually help prevent a fall.

If body-fat reduction is a goal, energy balance still matters. But exercise has jobs far beyond increasing energy expenditure.

Instead of asking “How much did I burn?”, ask better questions.

Am I stronger than three months ago? Can I walk faster or further? Am I lifting heavier weights? Can I get off the floor more easily? Has my balance improved? Can I climb stairs without becoming as breathless?

Those are signs that your body is becoming more capable.

Your programme should change as your body changes

There will be weeks when you progress quickly and periods when you do not.

Illness happens. Holidays happen. Menopause symptoms fluctuate. Joints occasionally complain. Life becomes busy. Sometimes you need to reduce training temporarily and then build back up.

That is not failure.

The goal is consistency across years, not perfection across weeks.

A sustainable programme evolves with you. At 55 you may train differently from the way you trained at 35, and at 75 the exercises may change again. But the underlying goals remain remarkably similar: preserve strength, muscle, power, cardiovascular fitness, balance and the ability to move confidently.

The exercises are tools. Physical capacity

Train for your future: how to stay strong as you age

This is ultimately where I want this series to take you.

Think about the life you want at 70, 80 or beyond. Perhaps you want to travel, hike, garden, swim, play with grandchildren, live alone, carry your own shopping or simply get up from a low chair without thinking about it.

Now work backwards.

If you want to carry your suitcase at 75, you need enough grip, leg and upper-body strength to do it. If you want to explore cities on foot, you need cardiovascular capacity. If you want to reduce your risk of serious injury from a fall, you need bone, strength, balance and reaction speed.

You cannot store fitness in a bank account at 50 and withdraw it forever. The body needs continuing stimulus.

But building more capacity now gives you more reserve from which to age.

That is a much more powerful goal than trying to make your body look younger.

What I want you to take away from this

Exercise keeps you active. Progressive training builds capacity. Your muscles need increasing resistance, your cardiovascular system needs an appropriate aerobic challenge, your bones need mechanical loading and your balance needs to be tested before it begins to fail. Protein and adequate nutrition support the process, while recovery allows adaptation to occur.

You do not need to train like an athlete to stay strong as you age. You need to gradually become better at the physical abilities you want to keep. The goal is to build enough strength, fitness, power and reserve that ordinary life remains comfortably below the limits of what your body can do for as long as possible.

In the final article, we will look at how to find out whether all of this is working and what deserves closer attention: bone density, cardiovascular and metabolic markers, body composition, grip strength, balance and physical function, and the signs that something needs medical investigation rather than another workout.

Next: Healthy Ageing After 45: What Is Actually Worth Measuring and Checking?

You can explore more articles, free and paid resources, my book and programmes in the Healthy Ageing & Strengthsection of Feel Good Menopause.