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Interval Running

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The 6 Best Fitness Trackers for Run/Walk Intervals

Smarter, easier workout tracking allows you to turn your mind off.

By Matt Rudisill

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Hammer Intervals Add a New Challenge to Your Speed Workouts—Here’s How to Do Them

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Why Repeating a Speed Workout Makes You Faster

speed endurance workouts so you can run faster longer

Two Workouts to Help Build Speed Endurance

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Use this Chart to Find Your Treadmill Pace

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A Comprehensive Guide to Picking Up the Pace

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8 Types of Runs Every Runner Should Know

three runners on a track

How to Build Your Speed Endurance

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How to Make Hill Running Easier

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The Difference Between Long and Short Intervals

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Struggling With Long Runs? Master These 2 Techniques to Make Them Easier

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Build Muscular Endurance With This One Move

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Why a Running Base Is Essential for Race Training

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How to Balance Strength and Marathon Training

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How to Run Stronger in Your 40s

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6 Threshold Workouts to Build Speed Endurance

By Matt Rudisill

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How to Conquer Your Sprint Workouts

By Laurel Leicht

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Lacate Threshold Runs Are Key to Your Training

By Heather Mayer Irvine

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The Ultimate Guide to HIIT for Runners

By Selene Yeager and Cindy Kuzma

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Best Half Marathon Workouts

By Jennifer Acker

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Try These 20-Minute Run Workouts

By Kristine Kearns

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Marathon Workouts to Get Faster

By Jennifer Acker

how many calories do you burn running one mile

Speed Workout Progression for New Runners

By Rozalynn S. Frazier

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4 Interval Workouts for Every Experience Level

By Emily Abbate

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Anabolic vs. Catabolic Metabolism and Running

By Victoria Clayton

400 meter repeats sprinting

400-Meter Repeat Workouts

By Jenessa Connor

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Best Workouts to Set Race Day Goals

By Ashley Mateo

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Track Running Beginner’s Guide

By Ashley Mateo

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5 Different Workouts to Help You Boost Speed

by Jennifer Van Allen

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The Benefits of Resistance Sprints

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The Best Interval Workout for Boosting Performance

By Elizabeth Millard