He always ran all out at practice in the belief that pushing his body in workouts would make races seem easy.

WSJ: US sprinter Tyson Gay pulling back to push forward

You must exercise, you must push yourself, you won't gain any ground unless you push your body beyond it's limit and keep pushing it until you mold it into the body you have always dreamed of.

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After his second place in this year's Giro, he should at least be a contender for the top 20 in the Tour de France, depending how his body copes with pushing strongly in two Grand Tours.

BBC: Vini Caldirola

So some biotechnology companies are taking stem cells from other, more accessible parts of the body, and are pushing ahead with them in clinical trials.

ECONOMIST: Stem cells

Djokovic is 25 and now owns six Grand Slam titles, five of them taken since 2011, and if his body holds, it's hard to imagine him not pushing into double figures in the next few years.

WSJ: Jason Gay: Tennis's Awesome Problem

When you jump, you are exerting energy, by running and pushing off the ground, to raise as high as possible not simply your body but your center of gravity.

NEWYORKER: Glory Days

Pronounced body roll, combined with that old guy driving position, kept me from pushing too hard through the curves.

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By changing the angle of its wings and its body, the moth was able to create a delicate balance between the thrust pushing it forwards, the drag - or air resistance - pushing against it, and the lift keeping it in the air.

BBC: Footage reveals how insects use their bodies to hover