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- Title
Reliability and Validity of the Variability Model Testing Procedure for Somatic Dysfunction Assessment: A Comparison with Gait Analysis Parameters in Healthy Subjects.
- Authors
Vismara, Luca; Bergna, Andrea; Tarantino, Andrea Gianmaria; Dal Farra, Fulvio; Buffone, Francesca; Vendramin, Davide; Cimolin, Veronica; Cerfoglio, Serena; Pradotto, Luca Guglielmo; Mauro, Alessandro
- Abstract
Somatic dysfunction (SD) is an altered body function involving the musculoskeletal system. However, its clinical signs—tissue texture abnormalities, positional asymmetry, restricted range of motion, and tissue tenderness—did not achieve satisfactory results for reliability. A recent theoretical model proposed a revision assessing the movement variability around the joint rest position. The asymmetry and restriction of motion may characterize functional assessment in osteopathic clinical practice, demonstrating the reliability required. Hence, this study investigated the reliability of the new variability model (VM) with gait analysis (GA). Three blind examiners tested 27 young healthy subjects for asymmetry of motion around rest position and the SD grade on six body regions. The results were compared to the VICON procedure for 3D-GA. The inter-rater agreement for the detection of reduced movement variability ranged from 0.78 to 0.54, whereas for SD, grade ranged from 0.64 to 0.47. VM had a sensitivity and specificity of 0.62 and 0.53, respectively, in SD detection compared to step length normality. Global severity grade of SD demonstrated moderate to good correlation with spatial-temporal parameters. The VM showed palpatory reliability and validity with spatial–temporal parameters in GA. Those findings contribute to the innovation for SD examination with implications for the clinical practice.
- Subjects
OSTEOPATHIC medicine; STATISTICS; CONFIDENCE intervals; RESEARCH evaluation; GAIT in humans; MATHEMATICAL models; RESEARCH methodology; CROSS-sectional method; RESEARCH methodology evaluation; HEALTH status indicators; PSYCHOLOGY of movement; COMPARATIVE studies; INTER-observer reliability; TEST validity; BODY movement; DIAGNOSIS; THEORY; PALPATION; DESCRIPTIVE statistics; RESEARCH funding; SOMATOFORM disorders; MOTION capture (Human mechanics); SENSITIVITY &; specificity (Statistics); MEDICAL practice; DATA analysis software; DATA analysis; DIGITAL video; SPACE perception; KINEMATICS
- Publication
Healthcare (2227-9032), 2024, Vol 12, Issue 2, p175
- ISSN
2227-9032
- Publication type
Article
- DOI
10.3390/healthcare12020175