How fast the heart beats depends on the body's need for oxygen-rich blood. At rest, the SA node causes your heart to beat about 50 to 100 times each minute. During activity or excitement, your body needs more oxygen-rich blood; the heart rate rises to well over 100 beats per minute.Medications and some medical conditions may affect how fast your heart-rate is at rest and with exercise.ou can tell how fast your heart is beating (your heart rate) by feeling your pulse. Your heart-rate is the amount of times your heart beats in one minute.
Look straight ahead. When sprinting, you can use the motion of your arms to help you sprint faster. You should keep your shoulders and arms relaxed during any type of running; many runners hunch their shoulders, drawing them up towards the ears.Tension of this sort in the shoulders causes muscle pain and slows you down.rop your shoulders away from your ears and keep your hands open with the fingers curled slightly. Allow your arms to move back and forth in rhythm with your legs. Your arms should be moving back and forth in a straight line. Side to side movement slows you down.
1 Stretch and take a break. 2  Try exercising at a school track, a local park, or even your neighborhood. 3  Mix it up to keep it new and stimulating. 4  When you are running, and your tired but want to get somewhere, stare at an object close to where you want to go and keep staring at it while running.