Sit-Up Challenge (FREE)
7 Day Sit-Up Fit For All Challenge.
A 7 Day Sit-Up Fitness Challenge with Coach Chris. You get 7 days with intense core and ab-focused exercises.
Join Coach Chris for weekly free fitness challenges. Every day it gets more fun and challenging. Want more? Turn in weekly for free content, and join our Club Yes.Fit exclusive membership for amazing monthly fitness challenges and workouts.