Special chair foams aim to take the pain out of sitting
NCT ID NCT07533617
First seen Jun 25, 2026 · Last updated Jul 14, 2026 · Updated 4 times
Summary
This study tests whether chairs with special foam materials and shapes can reduce tailbone pain and improve comfort for people with coccydynia. About 42 adults who sit at desks 5-6 hours daily will use the chairs for one week. Researchers will measure pressure distribution, pain levels, and quality of life to see if the design helps.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Ergonomic chair with modified foam materials and geometry
- What this could lead to
- If successful, this could point toward a simple, non-drug way to reduce tailbone pain for people who sit at desks for long hours.
- What could go wrong
- This is a small, early-stage trial with only 42 participants and a short one-week use period, so results may not apply to everyone or show lasting benefits.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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48 people
The number who actually took part.
- Started
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May 2026
- Finished
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Jun 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Aged between 18 and 65 years * Working at a desk for at least 5-6 hours per day * Experiencing coccydynia (tailbone pain) * Able to sit independently without assistive support * No diagnosed spinal disorders (e.g., lumbar disc herniation) * Willing to use the assigned chair during working hours for 1 week * Able to understand and complete questionnaires * Provided written informed consent Exclusion Criteria: * History of spinal surgery * Diagnosed spinal disorders (e.g., lumbar disc herniation, scoliosis, severe degenerative spine disease) * Neurological disorders affecting posture, sitting balance, or sensation * Severe musculoskeletal conditions (e.g., hip or pelvic disorders) that may affect sitting * Pregnancy * Inability to sit for prolonged periods * Use of assistive seating devices (e.g., orthopedic cushions) during the study period * Regular use of pain medication that may affect outcome measures
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Kto Karatay University
Konya, 42030, Turkey (Türkiye)
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