A member of the Beijing SWAT team, police officer Mao Weidong, has set a new world record for the world’s longest plank. Now if you’ve been following our workout plans then you’ve definitely performed this bodyweight exercise before, and would probably be pleased with holding a plank for, oh, about two-minutes or so. So when you hear that Weidong held his plank for over 4 hours, well, hopefully it inspires you to push for five-minutes next time…