TRX tuck

3 × 8-10  ·  Equipment: No equipment, TRX

Muscle groups: Core & abs

How to do trx tuck

1. Place your feet in the TRX foot cradles and set a high plank with your hands on the floor.
2. With arms straight, align your wrists under your shoulders.
3. Brace your abs and glutes and form a straight line from head to feet.
4. Bring your knees toward your chest by bending your hips, without arching your back.
5. Pause briefly with your knees close to your chest.
6. Extend your legs slowly back to the plank without swinging your hips.

Mistakes to avoid

• Do not arch your lower back as you tuck; pull your navel in.
• Avoid swinging or using momentum to raise your knees; the move must be controlled.
• Do not drop your head or push your wrists out of line with your shoulders.
• To avoid injury, if you cannot control the plank with feet suspended, start with knees on the floor.

Progression

• Master the high plank with feet in the straps for 30-60 seconds before the tuck.
• Do slow reps: raise in 3 seconds and lower in 3.
• Increase from 8 to 12 reps keeping technique before speeding up.
• To progress further, move to straight-leg raises with greater hip control.