Repeated sprint training in hypoxic conditions has emerged as a promising strategy to enhance performance in team sports, where short bursts of high-intensity activity and rapid recovery are critical.

Here’s an example. Running an ultra marathon requires endurance, because the goal is to maintain a steady pace for several hours. Tackling 100m repeats at your top speed, meanwhile, demands stamina, ...

On TikTok, workout tips abound — some credible, some dubious. And recently, you may have been hearing about something called sprint training, which falls somewhere between 12-3-20 treadmill workouts ...