What muscles do push-ups work? - Quora

What would happen if you did 1000 push-ups a day? - Quora

How many muscles are worked when doing push-ups and pull-ups? - Quora

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What are pushups good for? - Quora

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What other muscle groups need to be workout and developed and why

What muscles do push-ups work? - Quora

What groups of muscles does a reverse grip pull up work? - Quora

When doing Planks, how long do you need to hold to work your abs