From swimming pools to fitness racing podiums – Austria's Alexander Rončević is widely recognised as one of the best HYROX athletes in the sport's history and a current double world record holder.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." SCROLL THROUGH RUNNING TikTok or watch enough YouTube workout videos and you’ll start seeing the phrase ...

Over the summer, a physiologist named Karlman Wasserman, formerly of UCLA, passed away at the age of 93. The name may not ring a bell, but you can consider your next threshold workout an unofficial ...

Ready to get into the best shape of your life? Get free weekly workouts and no-nonsense training insights delivered straight to your inbox. Sign up here and let the gains begin. SCROLL THROUGH RUNNING ...

Many coaches argue that lactate threshold is one of, if not the, biggest performance predictor. It determines how fast you can run longer distances without burning out. So, a key component of training ...

‘Comfortably hard’ sounds a bit like a contradiction in terms, yet that’s the feeling you’re looking for when you start thinking about thresholds. It’s helpful for runners to know where their lactate ...