The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman - Timothy Ferriss
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Save the fatigue for your sport.
If you're looking for an abdominal exercise well-suited to power development without bulk,
look no further than the Janda sit-up.
Pavel has been able to register contractions in excess of 175% MVC (maximal voluntary
isometric contraction) for the rectus abdominis at Dr. Stuart McGill's laboratory performing the
Janda sit-up with a device called, appropriately enough, the Ab Pavelizer. Some scientists
theorize that the downward contraction of the hamstrings forces the hip exors to relax, which
largely prevents them from helping with the movement. Ergo, more than 100% MVC of the
remaining workhorse: the rectus abdominis.
To perform the Janda sit-up without any equipment, do the following:
1. · Loop a towel around your calves and have a training partner pull on it lightly at a 45-
degree upward angle, trying to lift your feet.