100 walking planks every day for seven days? Sign me up. Below, I explain how to do walking push-ups, the benefits and what happened when I committed to a week’s worth. Here are the results.

Dreeben, a retiree in Riverhead, New York, now does weekly CrossFit sessions and 100 push-ups six days a week ... "I called ...

Being part of the Bushido 100 team not only fosters ... By taking on the Push-Up Challenge, you're supporting the research that helps beat it. £70 could fund a clinical research grant for one day, ...

He does 100 push-ups and also planks six days a week ... "I called my trainer up the next day and said, 'That's all you got?'" Dreeben said. "So the following week he upped it.

Jim Dreeben, 83, took up CrossFit in his 80s and got hooked. He does 100 push-ups and also planks six days a week, and his doctor told him to keep going. Dreeben's active lifestyle includes ...