Many recent studies in exercise physiology have concluded that short, intense exercise can have equal or better effects on both muscular and cardiovascular conditioning! Great news for those, like most of us, who have busy lifestyles and cannot afford the time to take 2-3 hours a few times a week to go to the gym. Also, the benefits of High Intensity Interval Training can last hours longer than tradional “slow and steady” workouts. The attached link below from The Journal of Physiology has all of the science behind several studies that prove this to be the case. If you are medically fit to do so, this type of training can provide a jump start to a new exercise regimen or breath life back into one that has become monotonous!