Warming up means doing a slower, quieter version of the type of exercise you've chosen. For example, if your exercise prescription is for walking briskly for thirty minutes, you should start out by walking slowly. It gets your muscles warmed up so they’re more relaxed and less likely to get injured as you speed up to reach your THR. And it gets you into the mood of the whole thing.
I generally advise people to warm up for about five minutes before beginning the actual aerobic exercise.
Author: Cleaves M. Bennett MD FACP
Aerobic exercise is exercise that moves the larger muscles freely, generates heat in the body, and thus burns up oxygen: Aerobic exercise generally makes you breathe more heavily than you would at rest and causes you to work up a little bit of a sweat. Read More