Before going for strenuous exercises warm up exercises are necessary.
Warm up exercises relieves stress and prevents from injury. Warm up
exercises such as walk for few minutes, tread mill for few minutes is
good before going for strenuous activities. If you are going for a run
or brisk walk start up with warm up exercise is good. Warming up also
increases your heart rate slowly and breathing to ease your body into
exercising. Even before you dance start slowly and gradually increase
intensity. Warm up makes your body flexible. Suddenly stopping strenuous
activities are also not good so slowly stop your activity and so
cooling down is also important.