Classic sit ups not bio-mechanicly relevent?

[Flash]

@James_Smith

Due to the muscles of the abdomen operating much more so in a stabilizer capacity, whether concerning collisions, battles, sprinting (during American football field based actions) I selected to have my guys perform the totality of abdominal exercise in the form of very small amplitude dynamic movements in various positions (McGill variants, dynamic front/side isometric supports, trunk rotations within 30 degrees either way, etcetera).

The repetitions themselves involve dynamic movement; however, the movement amplitudes are very small. This could be considered oscillatory isometrics.

Most of my ab work is of this nature. I can easily rack up 300-400 reps in about 5-6min.