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How many sit-ups you need to do to see results is initially very few and will continue to increase as you get stronger.
How good is doing 150 sit ups a day for a month? What results will I see? - Quora
The Fastest Way to Improve Your Sit-Ups
I did 1000 Sit-Ups in One Day *SHOCKING RESULTS*
How many sit-ups you need to do to see results is initially very few and will continue to increase as you get stronger. How soon will I see results from sit-ups? How
How Many Push-Ups Should You Be Able to Do? - Steel Supplements
How to Increase the Number of Sit Ups You Can Do: 11 Steps
How Many Sit-Ups A Day Will Sculpt Envy-Inducing Abs Or A Perfectly Flat Stomach - BetterMe
How to Get Six Pack Abs Fast (with Pictures) - wikiHow
Sit ups are making you fat. Ditch the core work to see your 6 pack abs
I Did 100 Sit Ups a Day for 30 Days