The key to success with your training program is a program that varies often and is always challenging in relation to your goals. Depending on your goals, it may be beneficial to do a different training session each time you train. This constant and high-intensity variety can create several benefits for your cardiovascular health while modifying your body composition. Otherwise, a repetitive program may be useful if you are training for a specific event (for example a marathon or a particular race), but this program should be updated regularly. It is not recommended to repeat the same program for more than 4 weeks.