Bent Windshield Wipers With Extension Guide
Intermediate No Equipment
Muscles: abs, obliques, hips
  • Lie on your back with arms out wide for support
  • Lift knees bent above hips
  • Rotate legs to one side, extending both legs
  • Return to center and repeat on the other side

Bent Windshield Wipers With Extension Tutorial

This abs exercise is a rotational core move performed lying on your back, where you rotate your legs side to side while extending them at each turn. It strongly targets the obliques and deep core while teaching hip control and shoulder stability. This guide is best for intermediate trainees who already have basic core strength and want to progress to more dynamic movements. Focus on keeping your shoulders grounded, controlling the leg extension, and moving with intention rather than speed.

Benefits

  • Builds rotational core strength
  • Improves oblique definition
  • Enhances hip and pelvic control
  • Trains shoulder stability against rotation
  • Develops coordination between upper and lower body
  • Challenges core endurance without equipment

Setup & Starting Position

Lie flat on your back on the floor. Extend your arms out to the sides at shoulder height with your palms pressing lightly into the ground. This arm position helps anchor your upper body and keeps your shoulders grounded throughout the movement.

Bend both knees and lift your legs so your hips and knees are bent about 90 degrees. Your thighs should be vertical, and your shins roughly parallel to the floor. Keep your feet together and off the ground.

Before starting, gently brace your core by tightening your abs as if preparing for a light cough. Press your shoulders and upper back into the floor and make sure your lower back stays close to the ground without excessive arching.

Quick tip: If your shoulders lift when you rotate, reset and reduce your range of motion.

How To Do Bent windshield wipers with extension (Step-by-step)

  1. Start lying on your back with arms out wide and knees bent above your hips.
  2. Brace your core and keep your shoulders pressed into the floor.
  3. Slowly rotate both bent legs to the right across your hips.
  4. As you reach the side, extend both legs straight while hovering them above the floor.
  5. Pause briefly with control, without letting your shoulders lift.
  6. Bend your knees again and bring the legs back to center.
  7. Repeat the rotation to the left side and extend both legs.
  8. Return to center to complete one full rep, right and left together count as one rep.
  9. Continue alternating sides with steady, controlled tempo.
Bent windshield wipers with extension exercise demonstration - proper form and technique

Form Cues

  • Shoulders stay glued to the floor
  • Move slow and controlled
  • Extend legs only as far as you can control
  • Abs tight before you rotate
  • Feet stay together
  • No swinging or momentum

Breathing & Bracing

Start each rep by gently bracing your core before your legs begin to move. Think about tightening your abs as if you are zipping up tight pants, without holding your breath.

Inhale softly through your nose in the center position. As you rotate and extend your legs to one side, exhale slowly through your mouth. This exhale helps your obliques engage and keeps your ribs from flaring.

When you bring your legs back to center, inhale again and re brace before rotating to the opposite side. Keep your breathing smooth and controlled, matching the rhythm of your movement.

A simple rhythm to follow is inhale at center, exhale during the rotation and extension, inhale back to center. If you feel your lower back arching, slow your breathing and reduce the range of motion.

Common Mistakes

  • Letting shoulders lift off the floor, press arms harder into the ground.
  • Swinging the legs with momentum, slow down and control each rep.
  • Overextending legs too low, shorten the extension range.
  • Arching the lower back, tighten abs before moving.
  • Bending and extending at random times, keep the sequence consistent.
  • Holding the breath, use steady exhales during rotation.

How It Should Feel

Good signs: You should feel strong tension along the sides of your abs, especially the obliques. Your core should feel challenged but controlled, and your shoulders should stay heavy against the floor. Mild shaking in the abs is normal and shows engagement.

Warning signs: Sharp pain in the lower back or hips means you should stop immediately. If your shoulders peel off the floor or you feel strain in the neck, the movement is too large or too fast.

Quick adjustments: If you feel it mostly in your lower back, bend your knees more and limit how far you extend your legs. If your neck tenses up, relax your head and press your arms down more firmly for support.

Alternative Names

Windshield wipers with leg extension, Bent knee windshield wipers with extension

Variations

Easier

  • Bent Knee Windshield Wipers: Rotate bent legs side to side without extending them.
  • Short Range Wipers: Only rotate a small distance before returning to center.

Harder

  • Straight Leg Windshield Wipers: Keep legs straight for the entire movement.
  • Paused Extension Wipers: Hold the extended leg position for 2 to 3 seconds on each side.

Sample Workout

Core Focus Workout:

  • Dead Bug, 3 sets of 8 reps per side
  • Bent Windshield Wipers With Extension Both Sides, 3 sets of 6 to 10 reps
  • Side Plank, 3 sets of 20 to 40 seconds per side

Rest 45 to 60 seconds between sets. One rep of this exercise includes a rotation and extension to both the right and left side.

Progression Plan

Week 1: Perform 3 sets of 6 reps with slow control. Focus on keeping shoulders grounded and limiting the extension height if needed. Rest 60 seconds between sets.

Week 2: Increase to 8 to 10 reps per set. Slow the lowering phase and briefly pause for one second during each leg extension. Keep rest periods the same.

Week 3: Add a fourth set or reduce rest to 45 seconds. Aim for perfect form on every rep.

Progress to advanced variations once you can complete all reps without shoulder lift or lower back strain. If form breaks down, repeat the previous week and focus on control rather than volume.

FAQ

How many reps should I do?
Most people start with 6 to 10 controlled reps, where one rep includes both sides.

Should my feet touch the floor?
No, keep your feet hovering above the floor during the extension.

Can I do this exercise every day?
It is better to allow at least one rest day between hard core sessions.

Why do my shoulders lift?
This usually means the range is too big or the core is not braced enough.

If you have lower back, hip, or spinal issues, consult a qualified professional before performing this exercise.

Summary

Bent windshield wipers with extension on both sides are a powerful way to challenge your abs through rotation and control. When performed with patience and good technique, they build strong obliques and teach your core to stabilize under movement.

Keep your shoulders grounded, move slowly, and respect your current limits. Progress gradually, and this exercise can become a reliable staple in your bodyweight core training routine.

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