His body 'totally depleted' by distance running, Ryan Hall became reenergized after turning to weightlifting

By George Ramsay, CNN

Updated 1403 GMT (2203 HKT) December 21, 2021

ReplayMore Videos ...MUST WATCH(16 Videos)See what the US' fastest marathon runner is up to nowLawyer breaks down what Djokovic's team could do nextHear Djokovic's Serbian fans react to his Covid-19 scandal Georgia wins its first national championship in college football since 1980Teqball World Championships pave the way for Olympics inclusionSumo girls: Meet the women changing the face of Japan's national sportHow the Hong Kong Divas have taken everyone by surpriseKylian Mbappé is hungry for more World Cup success in QatarTom Stoltman: Meet the 'World's Strongest Man'NHL equipment manager thanks fan who noticed his melanomaKylian Mbappe on playing alongside Messi at PSG and what's in store for his futureHe was one of Iran's top athletes. His life unraveled after this happenedTackling discrimination on a Chelsea matchdaySpeed skydiving: Rocketing 300mph through the skies with nothing but a parachuteHow Judit Polgár became the best female chess player in historyHow a jiu-jitsu practitioner overcame sexual abuse to become a champion

(CNN)Ryan Hall may hold the fastest marathon and half marathon times for a US athlete, but these days he admits that running doesn't feel like it used to.

«It just feels like you're wearing a weight vest the whole time,» says Hall, which is hardly a surprise when you consider his physical transformation since retiring from the sport five years ago.As a professional runner racking up 120 to 140 miles a week, Hall would weigh in at a lithe 130 pounds; today, he's 190 pounds and far more likely to be found lifting weights than grinding out 20-mile long runs.And while he may not be able to get close to his half marathon record of