16. Chair Push-Ups

You can also try this version! It seems easy but you still get a great core workout and your arms will be ripped. You need to place your hands on a very stable, immobile chair or bench, and stretch your body out behind you. From there, you just lift and lower your body as you would in a regular push-up. The great part about this version is that you can do a lot more repetitions -- which, again, will really benefit both your arms and your abs. What could be better?

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