TRX Leg Raise
The TRX Leg Raise is an intermediate core exercise performed lying on your back with feet suspended in the straps, requiring you to lift your legs and hips while maintaining a rigid plank. This movement intensely targets the lower abdominals and deep stabilizers by leveraging your body weight against gravity and instability.
Iridium monitors sub-muscle fatigue in your forearms and hip flexors to ensure recent heavy pulling or leg sessions won't limit your performance on this movement. The system tracks your repetition count relative to body weight to gauge progressive overload, ensuring your lower abs remain the primary driver of failure rather than your grip strength.
Form Cues
- Press your palms firmly into the floor to create a stable base.
- Engage your glutes and core to hover your hips off the ground.
- Lift your legs towards the ceiling by contracting your lower abs.
- Exhale sharply as you raise your legs.
- Lower your legs slowly to the starting plank position.
- Don't allow your lower back to arch or sag at the bottom.
- Don't use momentum or swing your legs to initiate the lift.
- Don't let your knees bend excessively during the movement.
- Don't hold your breath while exerting force.
Common Mistakes
- Hyperextending the lower back
- Relying on momentum
- Bending knees to cheat
- Placing hands too wide
- Dropping hips too low
Muscles Worked
This exercise primarily targets the lower fibers of the rectus abdominis and the hip flexors, which work together to lift the legs and pelvis. The instability provided by the suspension straps forces the transverse abdominis and obliques to engage intensely to prevent rotation and protect the lumbar spine.
Primary
Secondary
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