Alternate between the two for 2-3 rounds, rest 1 min between rounds

1) Hollow Rocks (10 reps)
2) V Ups (10 reps)
3) Tuck Ups (10 reps)
4) Hollow Hold (10 sec)

1)Arch Rock
2)Arch Up:
3)Arch Hold:
-arms and legs fully extended
-feet knees together throughout
-neutral head position
-when rocking create uniform action front to back (equal lift from upper/lower 1/2)
-when performing arch up or hold, rise off ground as much as possible maintaining good position