NCT01323127|Completed
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Sponsor study identifier
Secondary identifiers
OTHER · ANSM
observational
20
1 country
1
Study Start
April 2011
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
December 10, 2011
Actual (reported)Study Completion
December 10, 2011
Actual (reported)The main objective of this study is to investigate the influence of seat type (straight chair versus "ergonomic" chair) on the sagittal alignment of the lumbo-pelvic complex in two different postures compared to standing for each individual in both a chronic-back-pain and a non-chronic-back-pain population.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 10, 2011
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
March 24, 2011
Actual (reported)March 25, 2011
Actual (reported)April 2011
Date type not reportedThis date has not been verified as actual or estimated.
December 10, 2011
Actual (reported)December 10, 2011
Actual (reported)% variation in the pelvic incidence angle in sitting compared to standing
Upon xray; day 1
% variation in the sacral slope angle in sitting compared to standing
upon xray; Day 1
% variation in the pelvic tilt angle in sitting compared to standing
upon xray; Day 1
% variation in the lumbar lardosis angle in sitting compared to standing
upon xray; Day 1
This group of patients has had chronic back pain for longer than 3 months.
This group of patients is hospitalized for cardio physical therapy, and has no lumbar-pelvic complications. Patients are selected from the hospitalized population according to age, sex, and BMI in order to match chronic back pain patients.
5 xrays will be taken: (1) Upright standing position; (2) Upright, straight chair position; (3) Slouching, straight chair position; (4) Upright, ergonomic chair position; (5) Slouching, ergonomic chair position.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Two populations are compared: one with chronic back pain, and the other a group of hospitalized patients with no lombo-peliven complications.
Centre Hospitalier Universitaire de Nîmes
Nîmes, Gard, 30029, France
Vaucher M, Isner-Horobeti ME, Demattei C, Alonso S, Herisson C, Kouyoumdjian P, van Dieen JH, Dupeyron A. Effect of a kneeling chair on lumbar curvature in patients with low back pain and healthy controls: A pilot study. Ann Phys Rehabil Med. 2015 Jun;58(3):151-6. doi: 10.1016/j.rehab.2015.01.003. Epub 2015 May 5.
Arnaud Dupeyron, MD PhD
Centre Hospitalier Universitaire de Nīmes
20 participants (actual enrollment reported by the registry).
First Submitted
March 24, 2011
First Posted
March 25, 2011
Study Start
April 2011
Date type not reportedThis date has not been verified as actual or estimated.
Contact the study team to confirm eligibility.
Primary Completion
December 10, 2011
Actual (reported)Study Completion
December 10, 2011
Actual (reported)Last Updated
November 17, 2025
Record last verified: 2015-03
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Source: ClinicalTrials.gov.
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