Busy work schedules and household chores often leave little time for exercise. A key component of any fitness routine is developing your abdominal and core muscles. Strengthening these muscles can improve posture and protect your back from injury. However, you may not always have time to hit the gym. Instead, you can use your sitting time to work on your abs. You can target specific areas and incorporate chair-based cardio exercises to engage your core while seated.
Steps
Perform Abdominal Muscle Development Exercises

Variation of the Crunch Exercise. Sit upright with your knees close together and bent at a 90-degree angle. Interlace your fingers and place them behind your head, engaging your core. Lean back slightly so your back barely grazes the chair. Use your core muscles to twist forward, bringing your right elbow to the outside of your left knee. Return to the starting position and repeat with your left elbow to your right knee. Perform 20 alternating reps.
- Lift your legs and knees to meet the opposite elbow, increasing the difficulty of the exercise.


Russian twists for oblique engagement. Rotate your body to one side so that it angles away from the backrest. Using your abdominal and core muscles, lean back as far as possible without losing control or arching your back. Hold your hands in front of your chest and twist your shoulders to the left. Then, twist to the right to complete one rep. Repeat for 10 reps or more if you can.

Simple waist rotations. Even small movements can engage your abdominal muscles. Sit upright on a chair and tighten your core while using other stabilizing muscles. Rotate your torso at the waist to one side while maintaining an upright posture. Hold for five seconds and repeat on the other side.

Be cautious with wheeled chairs. Some chairs or armchairs have wheels and may cause you to slide around the room during exercises. Perform movements slowly when doing ab workouts on a wheeled chair. Keeping the chair stationary forces your abs and core muscles to work harder and prevents injuries. Some ways to stabilize the chair include:
Engage your abs with cardio exercises

Jumping jacks while seated. Sit upright with your feet close together on the floor and knees touching. Raise your arms overhead while spreading your legs apart. Repeat this motion for 30 seconds. This exercise builds endurance, improves blood circulation, and can enhance mental clarity.

Swimming motions for a six-pack. Tighten and pull your abdominal muscles toward your back to engage your core. Gently lean back at the waist with your legs extended to one side of the chair. Kick your legs up and down rapidly for 30-50 reps. This movement activates your core, boosts stamina, and can help sculpt your abs.

Seated running. Sit on the edge of your chair with your back straight. Hold the sides of the chair for stability. Slightly lean back, engaging your abs and core. Lift your right knee toward your chest, then lower it as you raise your left knee. Start with 5 reps per leg and gradually increase as your core strengthens.

Sitting on an exercise ball. Check with your manager to see if you can use an exercise ball as a chair. If approved, alternate between sitting on a chair and the ball for 20-30 minutes throughout the day. This exercise not only works your abs but also strengthens your hips and legs. Choose a ball size that matches your height:
Warning
- Consult your doctor before engaging in core and abdominal exercises if you have lower back issues or other health concerns.
What you'll need
- A chair
- An exercise ball