Seated Thoracic Extension (Chest Opener)

What you'll gain

• Opens the chest and upper back after long periods of sitting.

• Uses a chair as a fulcrum so the motion stays in the thoracic spine.

• Needs no floor space, so it fits desk-break programming.

Step-by-Step Instructions

1. 1

   Sit back on a sturdy chair so the upper back can rest against the top of the backrest.

2. 2

   Plant both feet and interlace the hands behind the head with the elbows open.

3. 3

   Keep the hips down on the seat so the chair, not the lower back, is the fulcrum.

4. 4

   Lean the chest open over the backrest, looking slightly up without cranking the neck.

5. 5

   Pause in the open position, then return to the upright sit.

6. 6

   Repeat the extension, staying slow and stopping if the motion dumps into the lumbar spine.

Common Mistakes

• Arching the lower back off the seat instead of extending over the chair contact.

• Pulling the head forward with the hands instead of supporting it.

• Sitting too far forward so the backrest never becomes a fulcrum.

• Bouncing at the end range rather than pausing in a controlled open position.

About This Exercise

Seated thoracic extension uses the chair backrest as a fulcrum. Sit back so the mid-back contacts the top of the rest, interlace the hands behind the head, and lean the chest open over that contact while the hips stay down. The goal is extension through the upper back, not a big lumbar dump or a neck hinge. The spinal erectors control the arch; the mid trapezius helps set the shoulder blades as the chest opens. For a catalog this is the chair chest-opener clip for desk and warm-up pages. The side view shows the backrest contact and the hands-behind-head setup, which is the version the approved animation actually performs.

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