During the deceleration periods in conventional methods, toxins become trapped within the tissues as the less active heart slows down the rate of blood flow. Circuit training's continuous cardiovascular requirements flush toxins out from the tissues by forcing the blood through the tubal pathways of the CV system. Your muscles become cleaner and recuperate immediately after each workout. Conventional weight training methods suggest that the applicant handle heavier weights with 6-10 rep sets. Inter-set rest periods of up to 6 minutes replenish the ability to lift more weight but, at the same time, can expose the lifter to possible injuries.
Injuries can occur from extended rest periods which cool the tissues.
Overemphasis on heavy resistance can place too much stress on the muscles, tendons and ligaments. Since circuit training is continuous, resistance automatically becomes substantially lighter. As the applicant remains active, the muscles can work just as hard as during conventional methods, but the added responsibility of the heart and lungs adds to the benefits. The mission behind circuit training makes a lot of sense. For those who are avid conventional applicants, I suggest using circuit training at least twice each year for 1-3 week periods.