Muscle strength and ageing

Muscle is what lets you get out of a chair, climb the stairs, carry the shopping and hold yourself upright. It is the difference between managing your own day and needing someone else to manage it for you, which is why it deserves more attention than it usually gets.

We all lose some muscle as the years pass, and we lose strength faster than we lose size. That distinction matters: a muscle can look much the same and still have less to give. There is a further distinction worth knowing, which is between strength and power. Strength is how much force you can produce. Power is how quickly you can produce it.

Power is the one that saves you when you trip. A stumble does not give you a few seconds to gather yourself and push back; the correction has to happen almost immediately. That is why training that asks your muscles to work briskly, not only slowly and heavily, is part of staying steady on your feet.

The encouraging part is how well muscle responds at any age. It adapts to being asked to do a little more than it is used to, and it keeps adapting into later life. Alongside that, muscle pulling on bone is one of the strongest signals bone gets to stay strong, so the same work pays into both. This is general movement guidance, not a prescription, and it is worth checking with your doctor before starting something new if you have a health condition.