Polarized training is based on a clear 80/20 distribution: 80% of your training at low intensity (max HR 65–75%) and 20% intense (at or above the anaerobic threshold), while the middle zone is largely ...

At 17, Winnie Yu was a high school track-and-field runner with a bright future. When Yu’s parents encouraged her to try sports in middle school, they didn’t expect she’d fall in love with ...

Finally, after many years of trying,, Erin Wallace, won her first senior outdoor cap last year. And now, she's looking ...