Tag: Running

Junyong Pak smashes Guinness Record-Running Fastest Marathon while carrying 40lb

Junyong pak Elite Obstacle Race Athlete

Junyong Pak, 2 time Toughest Mudder World Champ smashes Guinness Book World Record by  running the fastest marathon (3:12:47) carrying a 40lb. weight.  Pak says: “it’s an addictive rush when you’re so good at tolerating pain—and you come out the other side”.  Few would argue that when Junyong toes the start line at any obstacle…

Running vs. Gravity

A runner’s greatest energy expense is spent in a vertical plane (opposing gravity).  A runner has to leap 7.5 centimeters in the air (3”) to cover one body length in distance.  A typically well trained marathon runner’s stride length is between 75-90% of their total height. Here are some interesting deal points:  Scientists who measured…