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A video of a 63-year-old man in China using a stainless steel basin as an ab wheel to train his core strength on the surface of a river has gone viral online. The man, surnamed Shi, said he has been working out for years. Last year, he happened to see someone pushing a basin along a riverbank and decided to give it a try. What began as an easy two-handed push soon became a one-handed feat - and he pulled it off with surprising steadiness. ’I never expected it to work so well with one hand,’ Shi