An investigation of the reproducibility of a self-selected natural feet position when standing: Implications for the assessment of upright standing posture

Lee Daffin; Stanley Innes; Max C Stuelcken

doi:10.1016/j.msksp.2023.102896

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An investigation of the reproducibility of a self-selected natural feet position when standing: Implications for the assessment of upright standing posture

Journal article

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An investigation of the reproducibility of a self-selected natural feet position when standing: Implications for the assessment of upright standing posture

Lee Daffin, Stanley Innes and Max C Stuelcken

Musculoskeletal science & practice, Vol.69, 102896

2024

DOI: https://doi.org/10.1016/j.msksp.2023.102896

PMID: 38101271

Appears in Open Access via Read & Publish Agreements

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Abstract

Postural assessment

Base of support

Preferred stance

Photogrammetry

Feet position

Background Photogrammetry is often used to evaluate standing static postural alignment. Patients are often instructed to self-select a natural feet position but it's unclear whether this position can be consistently replicated across repeated assessments. Objective To determine whether people can replicate a self-selected natural feet position in upright standing across three sessions on different days. Design Between days test-retest reliability. Setting University laboratory. Methods Three variables – Base of Support (BoS), Foot Width (FW), Feet Opening Angle (FOA) – were measured from foot tracings of 150 participants (18–30 years) using established procedures. BoS data were assessed for systematic bias (Analysis of Variance), and absolute (Coefficient of Variation - CV%) and relative (Intraclass Correlation Coefficient - ICC) reliability. Results There was systematic bias in the BoS data across the three testing sessions. The CV% for the BoS data was 15.2%. The ICC (95% CI) for the BoS data was 0.84 (0.79–0.87). There were moderate-large correlations between the BoS and both FOA and FW respectively within each session. Conclusion If clinicians want to allow patients to use their self-selected natural feet position for repeated photogrammetric assessment of their static postural alignment it would be better to standardise the position of the feet, for example, by creating a tracing of a patient's self-selected natural feet position.

Details

Title: An investigation of the reproducibility of a self-selected natural feet position when standing: Implications for the assessment of upright standing posture
Authors/Creators: Lee Daffin - Murdoch University, School of Allied Health
Stanley Innes - University of Lancashire
Max C Stuelcken - University of the Sunshine Coast
Publication Details: Musculoskeletal science & practice, Vol.69, 102896
Publisher: Elsevier Ltd.
Identifiers: 991005625167407891
Murdoch Affiliation: School of Allied Health
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 1 Clinical & Life Sciences; 1.129 Back pain; 1.129.98 Low Back Pain
Web Of Science research areas: Rehabilitation
ESI research areas: Clinical Medicine