From sprints to incline walking, the data shows which workouts burned the most fat – and it's good news for runners ...

I love running, but I'm not a fast runner by any means, and I have no desire to be. I do want to be an efficient runner, though, and the two often go hand in hand. Having taken three months away from ...

Throughout my ultra-endurance sports career, I pushed my body to extremes that were dangerous and unhealthy; I took my love of running and my passion for Ironman triathlons too far and almost died ...

You’ve seen them at the gym – the cardio bunnies who spend hours on the treadmill but never touch a weight, and the muscle-obsessed lifters who break into a cold sweat at the mere mention of running.

HIIT once boosted your fitness, now it leaves you shattered. Learn how experts suggest balancing Zone 2 and intervals for ...