Building muscle from the age of 20 to 70

The human musculature is not only responsible for our physical performance, but also plays a key role in metabolism, postural stability, protection against injury and quality of life in old age. But how does our muscle mass develop over the decades? When is muscle building most effective? And what can be done to counteract age-related muscle loss?

In your twenties, your body and hormone balance are at their peak for muscle growth. Testosterone levels are high, growth hormones provide support, and your body’s ability to recover is excellent. Anyone who does regular strength training during this stage of life and ensures they follow a protein-rich diet can build significant muscle mass in a short space of time.

Training methods such as classic hypertrophy training with moderate weights (70–85 per cent of one’s maximum) and 6–12 repetitions per set are particularly effective at this stage. In addition, you should ensure you get enough sleep, manage stress and maintain a balanced diet – as all of these factors have a significant influence on the muscle-building process.

From around the age of 30, the body begins to gradually lose muscle mass – unless measures are taken to counteract this. The age-related decline in protein synthesis is around 0.5 to 1 per cent per year. The good news is that targeted strength training can not only halt this decline but also reverse it.

At this stage of life, the focus shifts not only to building muscle but also to maintaining it. It is important to have a good training routine that includes regular strength training – at least two to three times a week. Functional training, which promotes balance and coordination, can also provide valuable benefits here.

From the age of 50 at the latest, inactive people begin to experience more pronounced losses in muscle strength and mass – a process known medically as sarcopenia. The muscles lose not only volume, but also quality and reaction speed. This is accompanied by an increased risk of falls and reduced mobility in everyday life.

However, the same applies here: age-related muscle loss is not an irreversible fate. Studies clearly show that even people of advanced age can still build muscle mass and strength – provided they exercise regularly. Strength training therefore remains the treatment of choice even in one’s 50s and 60s. It is also advisable to ensure an appropriate protein intake (at least 1.2 to 1.8 g/kg body weight per day), sufficient vitamin D intake and, where appropriate, the use of targeted dietary supplements (e.g. creatine, leucine).

Even in one’s seventh decade of life, targeted exercise and nutrition are crucial for maintaining physical independence. A combination of strength training, balance exercises and activities that mimic everyday movements is particularly important. Exercises using equipment, one’s own body weight or even Therabands can be tailored to individual needs and carried out regularly.

Recovery time increases, so breaks from training should be deliberately planned. It is important to note that the intensity can – and should – remain challenging. This is because even older muscles respond to training stimuli – just a little more slowly.

Dietary supplements are no substitute for a good workout or a balanced diet – but they can be a crucial building block for maintaining muscle mass and vitality at certain stages of life. Particularly in later life, targeted use of products such as creatine, leucine or EAAs makes sense in order to overcome the anabolic threshold and slow down age-related muscle loss. It remains important to prioritise: quality, individualisation and consultation with a doctor – especially if you have any pre-existing medical conditions.