Bent knee Lying Twist

Instructions

1
Lie flat on your back with knees bent, feet flat on the floor hip-width apart, and positioned near your buttocks. Head is neutral, eyes facing upward.
2
Place hands behind head with fingers lightly touching temples or crossed over chest. Keep elbows wide and core engaged before initiating movement.
3
Lower the upper torso back toward the floor in a controlled manner, allowing the abdominal muscles to lengthen and stretch. Maintain neutral head position throughout descent.
4
Drive through the abdominal muscles to lift the upper torso toward the thighs in a crunching motion. Exhale as you curl up, then return to starting position with control.
PRIMARY MUSCLESRectus Abdominis
SECONDARY MUSCLESObliques, Transverse Abdominis, Hip Flexors
EQUIPMENTBody weight
DIFFICULTYBeginner

Overview

When programming for Rectus Abdominis growth, the Bent knee Lying Twist stands out as a highly efficient Strength, Cardio, Stretching choice. Performing this movement with Body weight forces your stabilizer muscles to work in tandem with the primary movers, translating to functional strength and enhanced muscular endurance.

Benefits

  • Promotes balanced muscular development by effectively recruiting the Rectus Abdominis and associated synergists.
  • Significantly enhances the structural integrity and power of the Rectus Abdominis.
  • Acts as a highly scalable Strength, Cardio, Stretching movement, perfect for both beginners and elite athletes.

Common Mistakes

  • Using excessive momentum to swing the Body weight rather than controlling the eccentric phase.
  • Failing to achieve a full range of motion, which drastically limits Rectus Abdominis engagement.
  • Losing core tension, leading to poor spinal alignment and reduced power output.
  • Rushing the repetition tempo instead of focusing on the mind-muscle connection with the Waist.

Pro Tips

If you feel this primarily in your joints rather than the Rectus Abdominis, instantly lower the weight and readjust your Body weight setup.

Muscle Anatomy

The primary driver is the Rectus Abdominis. However, the movement also recruits Obliques, Transverse Abdominis, Hip Flexors to maintain control of the Body weight.

Exercise Variations

  • Dumbbell Bent knee Lying Twist
  • Cable Bent knee Lying Twist
  • Banded Bent knee Lying Twist

Beginner Tips

If you are new to the Bent knee Lying Twist, focus on mastering the movement pattern with zero weight before adding Body weight.

Frequently Asked Questions