Sit-up with Arms on Chest
Strengthen your rectus abdominis and hip flexors with the sit-up, a classic bodyweight exercise.
Description
A core strengthening exercise where the individual lays on their back with knees bent and feet flat on the ground, and sit up towards their knees with their arms crossed on their chest.
How to Do Sit-up with Arms on Chest
- 1Setup
Lie on your back with your knees bent at approximately a 90-degree angle and your feet flat on the floor, hip-width apart.
- 2Setup
Cross your arms over your chest, placing your hands on opposite shoulders, ensuring your chin is slightly tucked towards your chest.
- 3
Engage your abdominal muscles to slowly lift your head, shoulders, and upper back off the floor, initiating the movement with your core. Exhale as you lift.
- 4
Continue to curl your torso upwards, maintaining a stable lower back, until your chest is close to your knees and your body forms a V-shape.
- 5
Inhale as you slowly and with control reverse the movement, lowering your torso back down to the starting position segment by segment.
Tips
- Initiate the movement by actively engaging your rectus abdominis, focusing on curling your spine rather than just hinging at the hips, to maximize core activation.
- Maintain a neutral neck position throughout the exercise; avoid pulling your head forward with your chin tucked too aggressively, which can strain your cervical spine.
- Control the eccentric (lowering) phase of the sit-up, resisting gravity slowly to enhance muscle engagement and prevent momentum from doing the work.
- Keep your lower back pressed into the floor as you begin to lift to prevent arching and ensure proper abdominal engagement, protecting your spine.
Common Mistakes
- ×Using momentum to "throw" yourself up reduces core engagement; instead, perform the movement slowly and controlled, focusing on muscle contraction throughout.
- ×Lifting your feet off the ground indicates a lack of core strength or reliance on hip flexors; fix this by consciously pressing your heels down and engaging your glutes slightly.
- ×Arching your lower back excessively at the top or bottom can strain your spine; maintain a slight posterior pelvic tilt and keep your abs braced throughout the entire range of motion.
Variations
Overhead Sit-up with Legs on Bench
Enhance core strength and stability with the Overhead Sit-up. This variation uses a bench for leg support, increasing abdominal isolation while holding a
Sit up with Chair Assisted
Perform chair-assisted sit-ups to strengthen your rectus abdominis and obliques. This bodyweight exercise helps build core strength and improve abdominal
Dumbbell Overhead Sit-up with Legs on Bench
Engage your core with this challenging sit-up variation. Hold a dumbbell overhead, legs elevated, to build stronger abs and improve spinal stability.
Related Exercises
Assisted Sit-Up
Perform assisted sit-ups to build core strength with support. This effective exercise targets your rectus abdominis, enhancing stability and definition.
Half Sit-up
A half sit-up targets the rectus abdominis and iliopsoas, strengthening your core. Learn proper form to enhance abdominal definition and stability.
Quarter Sit-up
Engage your upper abs with the Quarter Sit-up, a focused bodyweight exercise. Lift your head and shoulders slightly for core strength and definition.
Flexion Leg Sit up (straight arm)
Engage your core with the Flexion Leg Sit-up. This bodyweight exercise strengthens your rectus abdominis by lifting your torso while keeping legs straight
Dumbbell Complex Push-up Row Clean and Press
The ultimate full-body dumbbell complex combining a push-up, row, clean, and overhead press in one flow.
Dumbbell Renegade Row to Squat
Build total-body strength with this demanding complex combining renegade rows and explosive squats.
Track Sit-up with Arms on Chest in your workouts
Log sets, reps, and weight. See your progress over time.
Get Ellim — Free