Reformer exercise · Intermediate

Arm Opening & Rotation Sitting Sideways on the Short Box

Arm Opening & Rotation Sitting Sideways on the Short Box is an intermediate reformer exercise with the short box and weights that mainly works the arms, shoulders and core. Spring setting: 1× extra light (otherwise 1× light). Below you'll find the starting position, the flow in 3 steps and the cues to teach it in class.

From the reformer classes of Marie-Sophie Wernicke, certified Pilates instructor · Updated

Spring Setting and Key Facts

Springs
1× extra light (otherwise 1× light)
Reps
6–8 reps per variation
Level
Intermediate
Equipment
Reformer, Short box, Weights
Body area
Arms, Shoulders, Core
Muscles
Chest, Shoulders, Upper back, Obliques
Video tutorial
in the member area
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Starting Position

Sitting sideways on the short box, one foot on the headrest, the other on the carriage, facing right. The left hand holds the weight, the right upper arm in the short strap. Arms bent to the right and left at shoulder height, palms facing forward.

Step-by-Step Flow

  1. Open and close the bent arms in front of the face.
  2. Bring the bent arms up.
  3. Rotate the bent arm and upper body toward the end of the Reformer.

Cues for Teaching

  • The elbows stay at shoulder height.
  • The rotation comes from the rib cage, the pelvis stays still.
  • The upper body stays long, the shoulders down.

Featured in These Classes

This exercise is part of a ready-made reformer class plan with class outline, springs and cues:

Preview from the video for Arm Opening & Rotation Sitting Sideways on the Short BoxWith videoWith video in the plan “Box & Weights: Curtsey Lunge, Pike & Squat Series”The whole exercise on video, step by step, with springs and cues. The video plays inside the plan.Go to the plan →

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