Implications for the Use of Postural Analysis as a Clinical Diagnostic Tool: Reliability of Quantifying Upright Standing Spinal Postures From Photographic Images

Dunk, Nadine M.; Lalonde, Jennifer; Callaghan, Jack P.

doi:10.1016/j.jmpt.2005.06.006

Cited by 96 publications

(76 citation statements)

References 22 publications

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“…If reliability is low, the validity of the method cannot be determined 23 . The reliability of most angles described in this study has not been evaluated, although they are widely used in scientific studies 11,16,20 . In this respect, using intra-and interobserver assessment, Zonnenberg et al 8 found that photogrammetry provides reliable data and consistent measures.…”

Section: Discussionmentioning

confidence: 99%

“…This fact may explain the lack of repeatability between measurements. However, Dunk et al 20 found the sagittal view to best reflect the clinical evolution of postural changes since in this view the angular measurements differ from zero, whereas in the frontal view they tend to approach zero (symmetry). The authors also emphasized that the results of photogrammetry are reliable when anatomical landmarks are used instead of an external vertical reference.…”

Section: Discussionmentioning

confidence: 99%

“…Despite the increasing number of studies using photogrammetry 11,13,16,20 , there is no standardization of the angles used for the determination of certain postural changes. In addition, only few studies have evaluated the reliability and reproducibility of the posture assessment programs used.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Biofotogrametria confiabilidade das medidas do protocolo do software para avaliação postural (SAPO). DOI: 10.5007/1980-0037.2011v13n4p299

Souza

Pasinato

Andriollo

et al. 2011

Rev. Bras. Cineantropom. Desempenho Hum.

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-Photogrammetry is a valuable tool for the diagnosis and measurement of postural changes, but the lack of standardization of anatomical references and angular measures impairs the comparison between studies and compromises the reliability of the results. The objective of this study was to evaluate the inter-and intraexaminer reliability of angular measures proposed by the SAPO posture assessment software (v. 0.68). Twenty--four subjects were photographed in the standing position according to the recommendations of the SAPO software. Three examiners (A, B and C) experienced in the use of the software analyzed the images and repeated the analysis after 7 days. Variance, intraclass correlation coefficient (ICC), and t-test adopting a level of significance of 5% were applied. With respect to interexaminer reliability among the 20 angles measured, two were classified as unacceptable (A13: ICC = 0.623; A14: ICC = 0.568), one as acceptable (A19: ICC = 0.743), one as very good (A20: ICC = 0.860), and 16 as excellent (ICC ≥ 0.90). Evaluation of repeatability of the method by the same examiner showed that two angles measured by examiner A differed significantly between the two measurements (A11: p = 0.015; A12: p = 0.026), as did two angles measured by examiner B (A2: p = 0.019; A12: p = 0.015) and one angle measured by examiner C (A16, p = 0.011). In conclusion, comparison between different examiners showed that the angles proposed by the SAPO protocol are reliable for the measurement of body segments.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Biofotogrametria confiabilidade das medidas do protocolo do software para avaliação postural (SAPO). DOI: 10.5007/1980-0037.2011v13n4p299

Souza

Pasinato

Andriollo

et al. 2011

Rev. Bras. Cineantropom. Desempenho Hum.

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“…The present findings are consistent with those reported by other authors who assessed the angle of kyphosis and lordosis using photogrammetry and imaging technique applying X-rays. When they compared photogrammetry results with X-ray images these authors found positive correspondence in the case of thoracic kyphosis angle, yet measurement of angle of lordosis with photogrammetric method carried significant error [27,28]. Different findings related to measurement of lumbar lordosis were shown by Drzał-Grabiec et al, who reported that these two methods produced consistent results, yet the angular values identified with the non-invasive method were lower [10].…”

Section: Discussionmentioning

confidence: 97%

Concurrent validity of photogrammetric and inclinometric techniques based on assessment of anteroposterior spinal curvatures

et al. 2017

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Purpose The purpose of the study was to investigate correlations between parameters of anteroposterior spinal curvatures in the sagittal plane, measured with the use of photogrammetric technique and inclinometer in healthy elderly women. Methods Randomized study involved 50 females, ranging from 50 to 70 years of age (mean 62.26 ± 6.94); mean body mass index (BMI) 27.69 ± 4.79. The examined parameters included angle of inclination in lumbosacral spine (ALFA), thoracolumbar transition (BETA), upper thoracic segment (GAMMA), angle of lumbar lordosis (LLA) and thoracic kyphosis (TKA). Results obtained with gravitational inclinometer were compared with those identified with photogrammetry method. Statistical analyses were performed with Mann-Whitney U test, regression analysis and Bland-Altman analysis. Results In Mann-Whitney U test, with correction due to continuity, no statistically significant differences for any variable were found. Regression analysis was significant only for the variable of BETA angle. Bland-Altman coefficient for the respective angles was: ALFA 2.0%, BETA 4%, GAMMA 0%, LLA 2% and TKA 0%. Conclusions The results acquired with gravitational inclinometer and with photogrammetric technique are comparable, as the parameters of anteroposterior spinal curvatures acquired with these two methods are found to be compatible in the case of measurements of lumbar lordosis and thoracic kyphosis.

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“…This method of photographic analysis has been shown to have good reliability for the analysis of sagittal plane spinal posture and mobility. 3,24 …”

Section: Methodsmentioning

confidence: 99%

Thoracic Spine Extension Mobility in Young Adults: Influence of Subject Position and Spinal Curvature

Edmondston¹,

Waller²,

Vallin³

et al. 2011

J Orthop Sports Phys Ther

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Mechanical pain disorders in the thoracic spine are commonly associated with impairment of mobility. 5 Thoracic spine movement limitation in individuals with mobility impairment is frequently observed in axial rotation, as well as in the sagittal plane, particularly into extension. 6 Achieving end range motion of the shoulder girdle also depends on adequate extension of the thoracic spine. 12 Consequently, observation and measurement of thoracic spine extension mobility is an important part of the physical examination of patients with thoracic spine or shoulder girdle pain disorders. Movement impairments are typically interpreted in relation to the patient's symptoms and with consideration of the expected range of motion of the region being examined. While the mechanics of thoracic motion segments have been examined in cadaveric and modeling studies, 23,26,34 few studies have examined the global and regional mobility of the thoracic spine in vivo.Normative ranges of sagittal spinal motion have been reported for the lumbar spine 4 but not for the thoracic region. This may reflect the sentiment that "extension mobility of the thoracic region is limited and usually not measured." 10 In cross-sectional studies, extension mobility in asymptomatic individuals has been variously reported as being "almost negligible," while others have recorded motion of between 20° and 40°. 18,22,35 These differences can be attributed to age, measurement technique, and the reference position from which the movement was measured.Thoracic spine mobility has been shown to decrease with increasing age, although this decline is more evident in individuals over 60 years of age. 15,22 Though several computerized spinal T T STUDY DESIGN: Cross-sectional study. T T OBJECTIVES:To examine extension mobility of the thoracic spine in young, asymptomatic adults, with particular reference to the influence of subject position and magnitude of the thoracic kyphosis. T T BACKGROUND: Impairment of thoracic extension motion is commonly associated with mechanical pain disorders in this region of the spine. Knowledge of normal thoracic mobility and the factors that may influence this motion is important in the evaluation and management of thoracic pain disorders. T T METHODS:In 40 asymptomatic adults, the total and regional thoracic extension range of motion was measured using 2-dimensional photographic image analysis. Extension mobility was measured in standing, sitting, prone, and 4-point kneeling.The association between the magnitude of the habitual thoracic kyphosis and extension mobility was also examined. T T RESULTS:When measured from the habitual standing position, the mean range of flexion was 11.5° (3.7°) and mean extension range was 8.7° T T CONCLUSION:When measured from the habitual standing position, thoracic extension range of motion in young individuals is small and poorly correlated with the magnitude of the standing thoracic kyphosis. Unloaded positions (4-point kneeling and prone), compared to positions that load the spine (standing and s...

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Implications for the Use of Postural Analysis as a Clinical Diagnostic Tool: Reliability of Quantifying Upright Standing Spinal Postures From Photographic Images

Cited by 96 publications

References 22 publications

Biofotogrametria confiabilidade das medidas do protocolo do software para avaliação postural (SAPO). DOI: 10.5007/1980-0037.2011v13n4p299

Biofotogrametria confiabilidade das medidas do protocolo do software para avaliação postural (SAPO). DOI: 10.5007/1980-0037.2011v13n4p299

Concurrent validity of photogrammetric and inclinometric techniques based on assessment of anteroposterior spinal curvatures

Thoracic Spine Extension Mobility in Young Adults: Influence of Subject Position and Spinal Curvature

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