TRX Single-Leg Plank (Straight Arm)
The TRX single-leg forearm plank with one arm reaching straight forward as the free leg lifts; two limbs leave the floor at once.
How to do it
Setup
Forearm plank, one foot in the TRX cradle, the other foot hanging below it.
Steps
- Reach one arm straight forward as the free leg lifts behind.
- Keep the hips square on one forearm and one foot.
- Return both, then use the other arm; switch feet after the time.
Common mistakes
Rolling toward the reaching side: widen the supporting elbow and brace. Reaching the arm out to the side: point it straight ahead. Rushing the reach: move slowly enough that the strap stays still.
Breathing
Steady throughout; never held.
