· 4 min read
The default warm-up in most gyms is five minutes of easy cardio followed by static stretching. The first part is fine and insufficient. The second part, held for long periods immediately before lifting, tends to reduce force production for a while afterwards.
That does not make stretching bad. It makes the timing wrong.
What a warm-up is for
Three things. Raising tissue temperature, which changes how muscle and tendon behave under load. Taking the joints you are about to use through the range you are about to use them in. And rehearsing the movement itself at increasing loads so the nervous system has seen it before it matters.
The third is the one people skip, and it is the one that most changes the first working set.
A structure that holds up
Five minutes raising the heart rate. Five minutes of movement through range, in motion rather than held. Then ramp the actual lift: empty bar, then three or four progressively heavier sets before your working weight.
Ten to fifteen minutes total. Longer is usually procrastination, and shorter shows up in the first set, particularly for anyone coming straight from a desk. Save the long static stretching for after, or for a separate session, where it does its work without costing you anything.
If it never feels like enough
Some people need a long warm-up every session to feel functional. That is worth investigating rather than accommodating forever, because it usually points at a specific restriction rather than at a general need for more time.
Getting stronger under a bar starts every session with a ramp for this reason. Using the floor on your own is where most members do the extra ten minutes of range work. Squat depth and hip mobility is the most common specific restriction we see, and lifting in your fifties and sixties covers why the ramp matters more as training history accumulates, and training around a desk job is the version of this for anyone arriving straight from eight hours in a chair.