He enjoyed running for exercise around the park when he was free.

当他有空的时候，他喜欢在公园里跑步锻炼身体。

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He devotes 30 minutes to cardio exercise — a knee operation three years ago forced him to switch from running outdoors to using a treadmill — and the rest to weightlifting.

他花30分钟做有氧运动——三年前的一次膝盖手术迫使他从户外跑步转而使用跑步机——剩下的时间用来举重。

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It does in rats, he said, and he is running a clinical trial in 600 patients to see if exercise also slows the disease in humans.

他说，这在试验老鼠身上已得到验证。他现在正在对600名患者做临床验证，以确定是否对人类亦如此。

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He realized that the most exercise he could squeeze in while running a 294-room, luxury hotel was assisting guests with their luggage or rushing around to fulfill a guest's request for a cab or theater tickets.

WSJ: Run to Work, Run a Hotel

Mark has been training by swimming twice a week, a form of exercise which he said he finds "easier than running".

BBC: News