¿Qué es SEMISITTING?

Innovative Ergonomic Solutions: The Semitin Chair

Overview of Semitin Chair

• Semitin is an innovative chair designed to adapt to the user's morphology, developed through extensive ergonomic studies.

• It facilitates posture changes based on different tasks, crucial for preventing postural risks and reducing fatigue.

• The chair maintains the natural curvature of the spine while offering high mobility and accessibility due to its pivoting base.

Environmental Considerations

• Constructed from environmentally friendly materials, Semitin is not just a work chair but a unique product tested at IBV laboratories.

Ergonomic Benefits

• Research indicates that a semi-sitting posture improves lumbar-pelvic alignment and reduces pressure on ischial bones and intervertebral discs.

• This position decreases static muscle activation in spinal erectors, enhancing perceived comfort compared to conventional sitting.

Study Insights

• A study conducted at the Instituto de Biomecánica aimed to verify if back posture remains unchanged when using the semisitting chair designed by Goznel.

• Participants included 15 healthy individuals of varying heights; dynamic body scanning was used to measure spinal curvature angles in three positions: standing, semi-sitting, and sitting.

Posture Analysis Results

• Objective tests showed similar kyphotic behavior across all three conditions; however, lumbar angle differences were noted: approximately 15º standing, 7.5º sitting, and 9º semi-sitting—indicating a 22% improvement in semi-sitting posture.

• For women specifically, this improvement increased up to 45%.

Subjective Feedback from Participants

• Over half of participants reported reduced pressure in the lumbar region and lower back as well as less fatigue in legs and glutes.

• More than 70% found it easier to maintain an upright posture with minimal effort; positive aspects included significant lumbar posture improvement and ease of transitioning between sitting and standing.