Run Long, Run Healthy — August 22, 2024

Double Threshold Workouts Vs Singles — Which To Do? 10 Worst Training Tips; Bounding is Best Plyo

PLUS: What shoes “won” the Olympic Marathon? Stay injury free with this simple guideline; To live long, try the pole vault; “Yes” to skincare

Amby Burfoot
Runner's Life
Published in
10 min readAug 22, 2024

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Should you be doing “double threshold” workouts? Image created with Microsoft Designer

“Double Threshold” Workouts Vs Singles: Which Is Best?

Double threshold workouts are all the rage. They’re thought to be instrumental in the big successes of Norwegian runners like Jakob Ingebrigtsen, and also the country’s triathletes and Nordic skiers.

Essentially, “double thresholds” mean two workouts (the same day) at/around tempo pace. They’re not easy runs, they’re not speed sessions. They’re in between — where athletes can gain a genuine fitness boost without risking injury, excessive fatigue, and burnout.

But no one has tested this 2 vs 1 theory in a controlled trial. Until now. “This study represents the first attempt to compare acute physiological responses between different methods of organizing moderate-intensity endurance training, specifically contrasting one long session with the increasingly popular ‘double-threshold training’…

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Amby Burfoot
Runner's Life

I am the 1968 Boston Marathon winner, former editor of Runner's World Magazine, book author, and editor of the weekly newsletter, "Run Long, Run Healthy."