Elbow to Knee Sit up
Target your obliques and build core strength with the Elbow to Knee Sit-up. This rotational sit-up variation effectively engages your waist muscles for a
Description
A sit up variation where you bring your elbow to the opposite knee to engage the obliques.
How to Do Elbow to Knee Sit up
- 1Setup
Lie on your back with your knees bent, feet flat on the floor, and hands lightly placed behind your head, elbows wide.
- 2Setup
Cross one ankle over the opposite knee (e.g., right ankle over left knee), allowing the top knee to fall open slightly.
- 3
Exhale as you engage your core, lifting your head, shoulders, and upper back off the floor while rotating your torso.
- 4
Aim to bring the elbow opposite to the elevated knee towards that knee (e.g., left elbow towards right knee), focusing on contracting your oblique muscles.
- 5
Inhale as you slowly and with control lower your torso back to the starting position, maintaining tension in your core.
- 6
Complete all repetitions on one side before switching to the other, or alternate sides for each repetition.
Tips
- Focus on initiating the movement from your obliques and abdominal muscles, not by pulling on your neck with your hands.
- Keep your lower back pressed into the floor as much as possible throughout the movement to protect your spine and maximize core engagement.
- Control both the concentric (lifting) and eccentric (lowering) phases of the movement to fully engage the muscles and prevent momentum from taking over.
- Keep your elbows wide throughout the exercise to prevent neck strain and ensure your shoulders are rotating properly.
Common Mistakes
- ×Pulling on the neck instead of engaging the core: Lightly support your head with your hands, allowing your abdominal muscles to drive the lift and rotation.
- ×Rushing the movement and losing control: Slow down the entire exercise, especially the lowering phase, to maximize time under tension and muscle activation.
- ×Lifting the lower back excessively off the floor: Actively brace your core and press your lumbar spine towards the floor to maintain stability and prevent arching.
Variations

Lying Elbow to Knee
Strengthen your obliques and sculpt your waist with the Lying Elbow to Knee. This bodyweight exercise targets core stability and rotational strength

Hanging Knees to Elbows
Master Hanging Knees to Elbows for a powerful core workout. This advanced exercise targets your rectus abdominis and hip flexors, building strength and

Elbow to Knee
Strengthen your core with the Elbow to Knee exercise. This dynamic plank variation targets your obliques and rectus abdominis, improving stability and

Decline Sit up
Challenge your core with decline sit-ups! This exercise targets your rectus abdominis, increasing intensity by working against gravity for a stronger,
Related Exercises

3/4 Sit-up
Engage your core with the 3/4 sit-up, a targeted abdominal exercise. Lift your torso partially to maintain constant tension and build strength.

Kneeling Rotational Push Up
Enhance chest, shoulders, and core strength with the Kneeling Rotational Push Up. This dynamic exercise improves stability and upper body power.

Staggered Leg Side Bridge
Strengthen your obliques and enhance core stability with the Staggered Leg Side Bridge.

Push-up with Knee Drive
Master the push-up with knee drive, a dynamic bodyweight exercise that builds upper body strength while igniting your core. Boost stability and endurance.

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 Elbow to Knee Sit up in your workouts
Log sets, reps, and weight. See your progress over time.
Get Ellim — Free