Toe Taps: Sit in your office chair put up your legs and then touch the ground with your toes, 20 taps per leg.
V to Boat: Sit in your chair, put up your legs as you did on the toe taps but now you will pull your knees to your abdomen. repeat 10 times
Oblique Crunches: just like V to boat but go to side to side (cheek yo cheek) 10 repetitions per side.
Roll Outs: Now get on your knees and pull your chair back and forth, (10 times)
Knee Tucks: hands on the ground, to es on the chair and now roll out your chair with you legs strength. (10 times)