for more oxygen to be supplied throughout the body during activity. Pulse wave velocity is used to monitor arterial stiffness; which increases with age and high blood pressure, leading to a higher probability of cardiovascular problems including hypertension or a stroke. A 2019 study on the relevance of exercise intensity in lower back rehabilitation, demonstrated higher intensity had a greater effectiveness with back therapy than moderate intensity exercise. Participants in the HIIT group had a decrease in back pain intensity and an increase in back muscle strength. In 2020, a similar study explained the strong effectiveness of cardiorespiratory HIIT in treating lower back pain, when combined with other forms of HIIT or mobility exercises. A 2020 study examined the impact of HIIT and moderate intensity continuous training (MICT) on overweight individuals by measuring the effect on cardiorespiratory fitness (CRF). The study found that both forms of training were effective in improving CRF with an increase in VO2 max, however there was no evidence that either training method was more effective than the other in improving cardiorespiratory fitness. According to a 2020 study HIIT could be used as prehabilitation for men awaiting surgery for urological cancer and it may improve heart and lung fitness within a month before their surgery. See also Aerobic exercise Anaerobic exercise Bodyweight exercise Boxercise Continuous training CrossFit Fartlek Long slow distance Physical fitness Powerlifting Power training Street workout Strength training References External links Tabata Protocol in swimming Anaerobic exercise Strength training Physical exercise