Push-ups always came easy to me. In my 20s and 30s, I could crank out more than 30 a day if I wanted to, and I loved how strong they made me feel. But the other day, when I went to do a set of 10 push ...

To reach 100 reps each day, Heria completed 50 per arm. He could split the reps into as many sets as needed and spread them across the day. After each session, he rated the difficulty and fatigue.

Push-ups come in many forms — some are progressions to make a push-up harder while others are regressions to make the upper-body exercise more accessible. One push-up variation that holds muscles ...

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