You should rethink skipping your warm-up. Whether you are a professional athlete or weekend warrior, a proper warm-up is always essential. Warm-up activity increases blood flow to your muscles, which prepares them for more strenuous activity. For example, if you are going to play basketball, you should first walk or jog around the court, perform lay-ups, and shoot some baskets for a minimum of 10 minutes, preferably 20 minutes.
Many people are confused about when to stretch.
Stretching should always be done at the end of the warm-up just prior to starting the activity.