A 43-year-old member of the Beijing SWAT team decided to challenge the Guinness World Record for the amount of time spent in a plank. Let's be honest, planks suck. This guy planked for four hours and 26 minutes, which he only stopped for because that was his wife's birthday. Unbelievable! The RTM hosts attempted the same feat and although they were about four hours and 23 minutes short, Christian is the official RTM planking champion!