TRX Semicircle

Abs, obliques, hip flexorsTRX Suspension Trainer

A TRX plank variation focused on strengthening the abs and obliques. The sweeping knee arc creates dynamic demand on your hip flexors and core stabilizers.

How to do it

1Place your feet into the TRX loops and lock into a push-up plank position.

2Form a straight line from head to heels, squeezing your abs and glutes with no arch in your back.

3Drive your knees toward your chest, sweeping them in an arc toward your right side.

4Return to the plank, fully extending your legs.

5Repeat the motion, sweeping your knees in an arc toward your left side.

Common mistakes

Arching your lower back, shifting work off your abs and onto your spine.

Using momentum and swinging your legs uncontrollably.

Piking your hips too high, which takes tension off your core.

Breathing

Inhale as you extend your legs back to plank; exhale as you pull your knees up in an arc.

This is general guidance, not a medical opinion. Listen to your body: if it hurts, stop. If you have an injury or a chronic condition, talk to a doctor first.