If you’re a runner, chances are you’d like to improve your performance and gain speed. This may be to improve your race times, burn more calories, or beat your personal best. There are plenty of ...

For a moment, the pace slowed—or at least that’s how it seemed to Kaitlin Gregg Goodman. Years ago, when the former pro distance runner ran the 10,000 meters at the Stanford Invitational, she sensed ...

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