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What Muscles Does the Stair Climber Work?

by
author image Matthew Schirm
Matthew Schirm has worked in the sports-performance field since 1998. He has professional experience as a college baseball coach and weight-training instructor. He earned a Master of Science in human movement from A.T. Still University in 2009.
What Muscles Does the Stair Climber Work?
The stair climber targets numerous muscles throughout your body. Photo Credit Joseph C. Justice Jr./iStock/Getty Images

Climbing stairs helps strengthen your cardiovascular system and various muscle groups throughout your body. Whether your goal is to lose weight, strengthen your muscles or improve your cardiovascular fitness, taking a turn on the stair climber can help you reach your fitness goals. To fully reap the benefits of this type of exercise, aim for at least 150 minutes of cardio exercise, like stair climbing, each week.

Abdominal Muscles

The abdominal muscles include the rectus abdominis in front; the external and internal obliques on the sides; and the transversus abdominis, which wraps around your abdomen underneath the others. These muscles allow you to move your spine through various ranges of motion, but not as you're climbing stairs. Rather, they work to stabilize and support your spine, helping you maintain balance and remain upright as you move your hips and knees through the extension and flexion ranges of motion required to exercise on a stair-climbing machine. With this additional strength, you'll enjoy better posture, a more-toned abdomen and more efficient movement.

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Gluteus Maximus

The gluteus maximus is the largest muscle of the gluteal muscle group, which also contains the gluteus medius and gluteus minimus muscles. The gluteus maximus is the primary hip extensor, helping to lift your body as you press downward with one leg at a time while exercising on a stair-climbing machine. The muscle attaches to the back, inside portion of the pelvis and runs diagonally downward, reattaching to the back, upper portion of the femur, or thigh bone. The gluteus maximus is also active during common activities such as bending over, squatting down, standing up, and walking or running. Strengthening this muscle makes these movements easier to execute.

Hamstrings

The hamstrings are a group of three muscles -- the biceps femoris, semimembranosus and semitendinosus -- that span the back of your thighs, crossing both the hip and knee joints. They are the primary knee flexors and help the gluteus maximus extend your upper legs. They work almost constantly, therefore, as you're training on a stair-climbing machine. For example, the hamstrings on your left leg contract to help extend your hip as you're pressing downward with your left foot at the same time that the hamstrings on your right leg contract to flex your knee as you're lifting your right foot and vice versa. Working these muscles on the stair climber helps tone your legs.

Quadriceps

The quadriceps are a group of four muscles -- the rectus femoris, vastus intermedius, vastus lateralis and vastus medialis -- that span the front of your thighs, opposite your hamstrings. Accordingly, they facilitate the opposite range of motion -- knee extension -- and the rectus femoris also helps flex your hip joint. The quadriceps contract powerfully to extend your knee each time you press your foot downward when you're using a stair-climbing machine. The rectus femoris also works to lift your upper leg during the exercise, along with the other hip flexors. Because the quadriceps are used in a variety of sports and daily activities, strengthening the muscles on the stair climber will make your movements more efficient.

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