Footwork on Pilates Reformer Optimized with T-BOW®
- T-BOW TRAINING AND THERAPY
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By Maja Tsirimokos

Foot Work on Pilates Reformer OPTIMIZED with T-BOW® adapted to Spine's Natural Lumbar Lordois
By Maja Tsirimokos
@maja_pilates
Kinesiological Stability of the Lumbar Spine with T-BOW® on the Pilates Reformer
The T-BOW® ensures safe and stable fixation of the lumbar spine, effectively preventing the harmful “yo-yo” effect, especially in the critical area between L5 and S1 (Blandine Calais-Germain, 2010). This phenomenon is often triggered by repeated leg extensions and flexions on the Reformer.
When these extension-flexion exercises in Pilates reformer are performed with poor technique, the T-BOW® can be a healthy aid for the spine, preventing the "yo-yo" effect.
When these extension-flexion exercises in Pilates reformer are to be performed with high intensity and/or heavy loads, the T-BOW® will provide safe and stable support for the spine, preventing the "yo-yo" effect.
None of the Pilates barrels replicate the natural anatomical lumbar lordosis of healthy adults. For reference, some Merrithew/Stott models have the following arches: Stability Barrel 79.6°; Arch Barrel and Arch Barrel Deluxe 117°; Stability Barrel Lite 76.7°; Spine Corrector 170°.
Would you use any of these Pilates barrels on the Reformer to provide natural stability to the lumbar lordosis?
The unique design of the T-BOW®, with a 40° arc in the synthetic fiber (HDPE) version and a 45° arc in the wooden version, is designed to match the typical lumbar lordosis—approximately 40–50° in healthy adults. This provides healthy support for the spine and, thanks to its responsive nature, offers exceptional stability. Furthermore, it allows for precise adjustments to hip and shoulder girdle posture during trunk extensions, promoting a more anatomical and secure alignment.
Tip: No apparatus is needed to achieve healthy limits of spinal mobility; however, typical benches and plinths or very inexpensive equipment can facilitate the process.
Footwork and Yo-yoing of the Pelvis (Blandine Calais-Germain in "No-Risc Pilates", 2010):
- When executed poorly, the footwork exercise causes repeated rocking of the pelvis, which has an impact on the intervertebral disks.
- The Yo-yo Effect: The extension of the hips, knees and ankles together tends to antevert the pelvis, while flexion of these three joints together tends to retrovert the pelvis; causing "scissoring" of the lower intervertebral discs repeatedly.
- The yo-yo effect has the greatest impact on L5/S1.
- Solutions and prevention: learn how to stabilize the pelvis during the push-out and on the return.
T-BOW®
Arch Adapted to the Spine's Natural Anatomical Lumbar Lordosis
a. Lying backward on the T-BOW®—thanks to its high proprioceptive sensitivity—prevents the spine from sinking, allowing partially blocked vertebrae to receive mobilizing pressure that promotes natural anatomical lumbar lordosis.
b. Therapeutic segmental strengthening and mobilization of vertebrae while lying prone, sideways or supine.
c. The T-BOW® enables strengthening the abs while maintaining a stable anatomical-structural lumbar lordosis and through a greater range of motion than a flat surface.
d. Thoracic back extension, moves from kyphosis toward lordosis, staying within the T-BOW®'s 40-45-degree limit.
45-Degree Arch for the Wood T-BOW® / 40-Degree Arch for the Classic T-BOW®
Typical Profiles · Cobb Method
* Thoracic Kyphosis: 20-40 degree arch
* Lumbar Lordosis: 40-50 degree arch

The arch of the T-BOW®, in a stable position, supports the spine allowing a greater range of motion than a flat surface; It also maintains the physiological curvature in a stable position throughout the exercise or static posture.
Fine postural adjustment
The design, reactivity, lightness and single axis of instability of the T-BOW® facilitate quick and precise postural adjustments, optimizing:
- Agile transitions and postural corrections—in concavity and convexity; in stable and unstable conditions.
- Deep joint stabilization and high responsiveness.
- Balance and coordination applications to daily and sports activities.

Simultaneously, the T-BOW®'s reactivity—enhanced by a comfortable, highly sensitive mat on its convex side—improves kinesiological stabilization of the lumbar spine, allows for stable alignment of the spinal curves, and facilitates quick and precise postural and motor adjustments. In contrast, softer, less reactive surfaces (such as the Bosu ball, exercise ball, or Technogym Balance Dome) tend to cause spinal vertebrae to collapse and provide slower postural feedback, thus limiting fine postural adjustments.








