Step 1: Anchor the TRX effectively, adjust the straps to long-length.
Step 2: Lie on your back directly under the TRX and place both hands in the foot straps palms down.
Step 3: Bend both knees and place them on the floor in a comfortable position.
Step 4: Engage your core and stabilize through your arms and shoulders.
Step 5: Lift both knees up towards your chest while ensuring your core is engaged the entire time.
Step 6: Lower your legs back to the ground while keeping your core strong.
Step 7: Repeat.
How to progress the exercise
Increase difficulty by straightening your knees until your legs are straight and turning the exercise into a straight leg raise.