This classic core exercise can be done basically anywhere, anytime. So, how often should you be doing it?
How many situps should you do in a day if you're performing daily situps as part of your fitness routine? We have an answer—and a better plan for abs.
What is a good way to get used to doing sit-ups and press-ups? - Quora
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
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