WARM-UP
Each and every time you exercise, you must warm up to prepare your body for exercise. Warming up increases the flow of blood to your muscles, ligaments, and tendons to prepare them for more intense activities with less risk of injury. It also increases the range of motion in your joints. If you start intense conditioning activities without a warm-up, you’re more likely to have an injury.
The warm-up should last for 5 to 7 minutes, and include some running-in-place or slow jogging, joint-rotation exercises, stretching, and calisthenics exercises like the flutter kick or high jumper. After your warm-up, you’re ready to move into your main workout routine.