I've found the below workout to be FAR more effective than my standard, average fitness sessions. Intense, short-duration workout is far more effective than long duration, lower intensity workout Here is more details: http://www.rosstraining.com/articles/tabataintervals.html And for the actual (very helpful) timer: http://www.speedbagforum.com/timerff.html I've already completed two sessions, one push-up and another boxing. EXTREMELY tiring, yet very rewarding. Hurts like a ****, but it's worth it.
