‘I’m a Taekwondo World Champion and 4th-Degree Black Belt—Here’s How I Build Strong *and* Flexible Legs’

At only 20, Rayna Vallandingham has already won 13 taekwondo world championships. Here's her best advice for long, strong leg muscles.

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Photo: W+G Creative/Nathan Tecson

‘I’m an Olympic Rower, and This is Hands-Down the Best Rowing Machine’

Three Team USA rowers highlight what to look for when shopping for an at-home rower.

Female crew team rowing on the water.
Stocksy / Shelly Perry