5 Seated Chair Moves That Target the Midsection More Efficiently Than Gym Machines After 55

Strengthen your core at home using body weight, a stable chair, and these simple movements.

If you’ve noticed extra weight settling around your middle, you’re not alone. Belly overhang can build gradually because of pregnancy, weight changes, hormonal shifts, and the aging process. As the years pass, changes in body composition — including a natural decline in lean muscle mass — plus reduced skin elasticity can also contribute to abdominal fullness. The good news is that there are practical ways to work on it.

Jacob Siwicki, founder and head coach of Siwicki Fitness, NCSF- and AFAA-certified, former top 1% globally ranked Equinox group fitness instructor in 2019, Dartmouth economics graduate and former Dartmouth football player, FOX 5 DC fitness expert, and the No. 1 personal trainer in D.C. in 2021, recommends five chair exercises that can help tighten the waistline more effectively than gym machines after 55.

“A lot of people overlook the fact that the abs are not only active when you’re standing or on the floor,” Siwicki says. “Their role is to stabilize the spine and pelvis in every position. When you sit upright, keep your ribs stacked over your hips, and move without leaning back, your core has to stay engaged the whole time.”

“A chair also removes much of the balance challenge, so people can concentrate on the core instead of worrying about falling. That makes these a smart starting point for anyone who has been hesitant to exercise because floor work or gym equipment feels intimidating.”

It’s important to remember that these moves can support stronger abdominal muscles and better posture, but they do not burn fat from one specific spot. A more defined midsection comes from building muscle while also paying attention to diet and overall lifestyle.

Pull up a chair and get moving.

Seated March

1. Sit with your feet flat on the floor and about hip-width apart.
2. Lift your left knee to hip height.
3. Lower it back down.
4. Lift your right knee to hip level.
5. Lower it back down.
6. Continue marching from the seated position while keeping your posture steady.

Seated Knee Tucks

1. Sit near the edge of a sturdy chair.
2. Lean back slightly and hold the seat with your hands.
3. Draw both knees toward your chest while keeping your core tight.

Seated Cross-Body Knee Lifts

1. Sit with your feet on the floor and your hands behind your head.
2. Brace your core.
3. Lift your left knee while bringing your right elbow toward it.
4. Return to the starting position.
5. Repeat on the other side and keep alternating.

Seated Torso Rotations

1. Sit tall on a sturdy chair with your feet flat and your core engaged.
2. Place your hands behind your head or cross them in front of your chest.
3. Slowly rotate your torso to the left while keeping your hips facing forward.
4. Come back to center, then rotate to the right.

Seated Side Bends

1. Sit upright with your core active and your feet flat on the floor.
2. Rest your right hand on the side of the chair for support. You can also hold a dumbbell or water bottle with that arm reaching toward the floor.
3. Reach your right arm overhead and slowly bend to the right, feeling a stretch through the left side of your body.
4. Pause briefly at the bottom, then return to the starting position.