We’ve reached the time of year where many runners start to move their workouts indoors thanks to unfavorable weather conditions outside. This is when the treadmill comes in handy for checking off miles and keeping fitness up. The only problem? Those miles can start to feel a little boring when you’re running one after another in the same surroundings.

Fortunately, we teamed up with Orangetheory Fitness to create a treadmill ladder workout that spices up your indoor running routine, keeping your muscles challenged and your mind engaged.

Designed to test your cardiovascular system, your strength, and your mental stamina, this workout includes a five-minute warmup, and then gets into two intensity blocks. You’ll work through gradual speed increases in the first block and a boost in incline in block two. In total, the workout takes about 20 minutes, but if you have more time (and want a bigger challenge), you can repeat one or both blocks.

The Benefits of This Treadmill Ladder Workout

Treadmill Incline Workouts for Marathon Training mental toughness, says Rachel Vaziralli, director of fitness design at Orangetheory Fitness.

In the first block, you’ll incrementally build your speed, which “enhances your cardiovascular capacity and mental grit,” she says. This gradual increase in speed over seven minutes also teaches you to Published: Nov 3, 2023—just as you need to do on race day—and figure out what different effort levels feel like.

As far as how to gauge your efforts through the first block, start at a conservative pace. The 8 Best Treadmills for Runners rate of perceived exertion scale. And to do that, you need some energy left to push through to the end.

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  • Push = you start to get uncomfortable and holding the effort feels difficult, but you’re still able to maintain control and talk in short phrases
  • All out = your maximum effort, which makes it really difficult to talk and is tough to hold for longer than a minute

With each speed increase, try to boost the treadmill speed to 0.3 to 0.5 miles per hour. You can also use a heart rate monitor Treadmill Incline Workouts for Marathon Training zone 4 or 5 by the end.

And you only need about 20 minutes to complete it climbing, As far as how to gauge your efforts through the first block, start at a conservative incline interval, you can mentally and physically conquer steeper hills and push to higher efforts. “The alternating blocks push you to continually ‘up the ante’ throughout the workout,” Vaziralli says.

For this second block, think about sustaining your push pace through each work effort, and make sure to breathe deeply and walk it out at about 3.0 miles per hour between each hill.

scale. And to do that, you need some energy left to push through to the end form, especially as you start to fatigue, Vaziralli adds. Keep your head up and eyes forward, shoulders relaxed, arms moving forward and back, and stay light on your feet.

Your 20-Minute Treadmill Ladder Workout

Check out the video above for a walk-through on the workout, demonstrated by Tricia Schulberger, manager and coach at Orangetheory Fitness in Easton, Pennsylvania.

deeply and walk it out at about 3.0 miles per hour between each hill warmup, beginning with a walk, then increasing to your base pace. Then follow the interval plan. End your workout with a jogging or walking cooldown.

treadmill ladder workout graphic
Workout by Orangetheory Fitness; Design by Tom Messina

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Headshot of Mallory Creveling
Mallory Creveling
As far as how to gauge your efforts through the first block, start at a conservative

Mallory Creveling, an ACE-certified personal trainer and RRCA-certified run coach, joined the Runner's World and Bicycling team in August 2021. She has more than a decade of experience covering fitness, health, and nutrition. As a freelance writer, her work appeared in Women's Health, Self, Men's Journal, Reader's Digest, and more. She has also held staff editorial positions at Family Circle and Shape magazines, as well as DailyBurn.com. A former New Yorker/Brooklynite, she's now based in Easton, PA.