The most common cause of vascular obstruction is a blood clot, also known as a DVT. This type of vascular problem usually occurs in one leg (not both), and leads to swelling of the soft tissues throughout the foot and ankle. The swelling can also extend further up the leg.
The hypothalamus is a part of your brain that controls body temperature. When you exercise, your body temperature increases, causing the hypothalamus to signal the brainstem to further increase your heart rate.
A. Monitoring heart rate during exercise provides an excellent measurement of intensity. Intensity, or how hard you are working, is an important factor in determining if you will improve your fitness level. Heart rate training takes the guesswork out of how hard you should be working to achieve the results you want.