What Areas of the Body Does a Treadmill Work?

Treadmills offer one of the best cardiovascular workouts because they work your whole body. They offer a freedom of movement that engages muscles throughout your body, toning muscle as you burn calories.

Woman working out on treadmill. (Image: "Twitter 365 Project - Day 62" is Copyrighted by Flickr user: lu_lu (Luis Markovic) under the Creative Commons Attribution license.)


Your hamstrings (back of thighs) and quadriceps (front of thighs) do most of the work in running and walking. Raising the incline on the treadmill increases the load on your hamstrings and glutes (backside).

Hips and Buttocks

Your gluteal muscles work in concert with your hamstrings to provide propulsion when you are running. The muscles in your hips lift your knee off the belt with each step.


The muscles in the backs of your calves (gastrocnemius and soleus) engage with each step. Running and walking also work the muscles in the front of the shins (tibialis anterior).


Between the rib cage and the hips, there is little bone to hold you upright. Instead, the “core” muscles hold you erect while running or walking. The core muscles also act as a conduit for transferring power between the upper and lower body, allowing pumping arms to power you up an incline.

Upper Body

Your biceps and chest (pectorals) pump your arms as you walk or run.

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