Always listen to your body. If you need to take more time warming up to prepare for a workout, don't hesitate. Avoid rushing into exercise without a warm up. This particular warm up is great if you only have a couple of minutes before your training session begins. It's short and hits the major muscle groups encouraging blood flow and preparing your central nervous system for exercise.
This is not an extensive warm up - if you are planning to train or play you should spend more time warming up and stretching.