Kelli Fierras

RUNNING 5 - ENDURANCE + SPEED

45 MinutesAll Levels

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Overview

This 45-minute interval-based workout is all about switching gears. After a warm up, you'll complete four 2-minute intervals consisting of a 30s jog, 60s run, and 30s sprint. The remaining intervals are similar, but with different speed timing.

What You'll Need

You will need a treadmill or the ability to run outdoors for this workout.