When I’ve finished a long run, my leg muscles feel like they’re ablaze. By the last few seconds of planking, my abs feel like they’re burning and close to shaking. When the workout burn is real, it's ...

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The moment that lingered in my mind after a recent triathlon-science conference came from a panel discussion with “gold-medal coaches,” including Iñaki Arenal, head of the Spanish high-performance ...

Endurance means a lot of different things to different people. To runners, it means being able to run for a long time, covering many miles. To weightlifters, it might mean being able to lift heavy ...

For people entering their senior years, staying physically active is key to staying healthy. But it can be difficult to determine which type of workout is best for aging bodies. Now, two recent ...