Well, it depends. How many can you do in one go? :>
What are the benefits of doing sit ups, crunches and push ups? Is it more upper body, lower body or both? Should it be done everyday or alternate days?
Well, it depends. How many can you do in one go? :>
What are the benefits of doing sit ups, crunches and push ups? Is it more upper body, lower body or both? Should it be done everyday or alternate days?