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Alternating 45-Degree Bent-Leg Extension

Strengthen your core! Alternating leg extensions target abs & hip flexors. Perfect for all fitness levels, no equipment needed.

The Alternating 45-Degree Bent-Leg Extension mainly works the core. No equipment needed: it uses just your bodyweight.

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Optional Equipment

Yoga Mat
Yoga Mat

Alternating 45-Degree Bent-Leg Extension Muscles Worked

Primary

Abdominals (rectus abdominis); Obliques

Secondary

Hip Flexor (iliopsoas)

How to do the Alternating 45-Degree Bent-Leg Extension

  1. Lie flat on your back on a mat with your knees bent at 90 degrees and your feet lifted off the floor. Ensure that your lower back is in a neutral position, slightly touching the mat.

  2. Place your hands flat on the floor beside your hips for stability.

  3. Brace your core and keep your chin slightly tucked to maintain a neutral spine throughout the movement.

  4. Slowly extend one leg out straight so that it is at a 45-degree angle to the floor while the other knee remains bent above your hips.

  5. Hold the position for a beat and then return your extended leg to the starting position.

  6. Alternate and extend the opposite leg in the same manner, ensuring a smooth and controlled motion.

  7. Continue alternating legs for the desired number of repetitions, maintaining controlled breathing and keeping your core engaged throughout the exercise.

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Alternating 45-Degree Bent-Leg Extension FAQs

What muscles does the Alternating 45-Degree Bent-Leg Extension work?

The Alternating 45-Degree Bent-Leg Extension mainly works the core. The main muscles are the rectus abdominis and obliques.

What equipment do you need for the Alternating 45-Degree Bent-Leg Extension?

None. The Alternating 45-Degree Bent-Leg Extension is a bodyweight exercise, so you can do it anywhere.

What are some Alternating 45-Degree Bent-Leg Extension variations and alternatives?

Similar exercises include the Alternating 45-Degree Backward-Lean Knee Raise, 90-Degree Heel-Tap, Alternating Leg Pull and Alternating Toe-Tap Leg Lift.

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