Daniela Ohlendorf1, Frederic Adjami2, Benjamin Scharnweber3, Johannes Schulze1, Hanns Ackermann4, Gerhard M Oremek1, Stefan Kopp2, David A Groneberg1. 1. Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Faculty of Medical Science, Goethe University Frankfurt, Germany. 2. Department of Orthodontics, School of Dentistry, Faculty of Medical Science, Goethe University Frankfurt, Germany. 3. Department of Prosthetics, School of Dentistry, Faculty of Medical Science, Goethe University Frankfurt, Germany. 4. Institute of Biostatistics and Mathematical Modeling, Faculty of Medical Science, Goethe University Frankfurt, Germany.
Abstract
BACKGROUND: Interactions within the musculoskeletal system have been investigated and confirmed in numerous studies. OBJECTIVES: Since there are no standard values for the posture of healthy persons, this study attempts to define reference values for the upper body posture in healthy men. MATERIAL AND METHODS: A 3-dimensional back scan was performed to quantify the upper back posture while habitually standing. Tolerance regions for habitual posture were calculated, including the upper and lower limit for 95% of all values. Furthermore, the left and right limit of the confidence interval (CI) was carried out. Group differences were tested by using the t-test or the Wilcoxon-Mann-Whitney U test. RESULTS: Height, weight and body mass index (BMI) of the participants were comparable to those of the average young German males. The spinal column was marginally twisted to the right. The spinal curves, defined by the thoracic or lumbar flexion angle, and the kyphosis and lordosis angle, indicated that the angle in the thoracic spine area was larger than that in the lumbar region. Consequently, a more kyphotic posture was observed in the sagittal plane. The habitual posture was slightly scoliotic, with a rotational component (scapular depression left, right scapula marginally located more dorsally, high state of pelvic left, iliac left further rotated posteriorly and simultaneously tilted further ventrally). No significant difference between right and left-handed persons could be proven. CONCLUSIONS: Video raster stereography is a suitable method to measure the 3-dimensional back surface. Using this method for healthy young men, we observed that they had an almost ideally balanced posture with minimal ventral body inclination and a marginal scoliotic deviation. The normal values allow a better comparison of data between different studies of body posture.
BACKGROUND: Interactions within the musculoskeletal system have been investigated and confirmed in numerous studies. OBJECTIVES: Since there are no standard values for the posture of healthy persons, this study attempts to define reference values for the upper body posture in healthy men. MATERIAL AND METHODS: A 3-dimensional back scan was performed to quantify the upper back posture while habitually standing. Tolerance regions for habitual posture were calculated, including the upper and lower limit for 95% of all values. Furthermore, the left and right limit of the confidence interval (CI) was carried out. Group differences were tested by using the t-test or the Wilcoxon-Mann-Whitney U test. RESULTS: Height, weight and body mass index (BMI) of the participants were comparable to those of the average young German males. The spinal column was marginally twisted to the right. The spinal curves, defined by the thoracic or lumbar flexion angle, and the kyphosis and lordosis angle, indicated that the angle in the thoracic spine area was larger than that in the lumbar region. Consequently, a more kyphotic posture was observed in the sagittal plane. The habitual posture was slightly scoliotic, with a rotational component (scapular depression left, right scapula marginally located more dorsally, high state of pelvic left, iliac left further rotated posteriorly and simultaneously tilted further ventrally). No significant difference between right and left-handed persons could be proven. CONCLUSIONS: Video raster stereography is a suitable method to measure the 3-dimensional back surface. Using this method for healthy young men, we observed that they had an almost ideally balanced posture with minimal ventral body inclination and a marginal scoliotic deviation. The normal values allow a better comparison of data between different studies of body posture.
Entities:
Keywords:
back scan; confidence interval; male subjects; standard value; tolerance value
Authors: F Huppert; W Betz; C Maurer-Grubinger; F Holzgreve; L Fraeulin; N Filmann; D A Groneberg; D Ohlendorf Journal: BMC Musculoskelet Disord Date: 2021-05-19 Impact factor: 2.362
Authors: Daniela Ohlendorf; Polyna Sosnov; Julia Keller; Eileen M Wanke; Gerhard Oremek; Hanns Ackermann; David A Groneberg Journal: Sci Rep Date: 2021-01-27 Impact factor: 4.379
Authors: Daniela Ohlendorf; Vanessa Fisch; Charlotte Doerry; Sebastian Schamberger; Gerhard Oremek; Hanns Ackermann; Johannes Schulze Journal: BMJ Open Date: 2018-08-05 Impact factor: 2.692
Authors: D Ohlendorf; S Salzer; R Haensel; J Rey; L Maltry; F Holzgreve; J Lampe; E M Wanke; D A Groneberg Journal: BMC Sports Sci Med Rehabil Date: 2020-03-02
Authors: C Maurer-Grubinger; I Avaniadi; F Adjami; W Christian; C Doerry; V Fay; V Fisch; A Gerez; J Goecke; U Kaya; J Keller; D Krüger; J Pflaum; L Porsch; C Wischnewski; B Scharnweber; P Sosnov; G Oremek; D A Groneberg; D Ohlendorf Journal: BMC Musculoskelet Disord Date: 2020-09-26 Impact factor: 2.362