15/03/2026
Long Box Plank Series ✨
Set up:
Place the long box on the floor next to the reformer. 1 white spring.
One forearm on the box, the other hand on the carriage.
1. Press the carriage in & out.
2. Add rotation to a side plank, reaching the carriage arm up to the ceiling.
Modification:
Keep one or both knees down if holding the plank with knees lifted is too challenging.
Form Check✔️
• Keep the shoulders stacked and avoid sinking into the supporting arm.
• Stay connected through the core to prevent the hips from dropping.
• Move the carriage with control.