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Open Access 01-12-2011 | Poster presentation

Fat mass is associated with disabling foot pain

Auteurs: Stephanie K Tanamas, Anita E Wluka, Patricia Berry, Hylton B Menz, Boyd J Strauss, Miranda Davies-Tuck, Joseph Proietto, John B Dixon, Graeme Jones, Flavia M Cicuttini

Gepubliceerd in: Journal of Foot and Ankle Research | bijlage 1/2011

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Background

Several studies have reported associations between increased body mass index (BMI) and foot pain. However, it is unclear as to whether the mechanism underlying this association is mechanical, metabolic, or both. Therefore, the aim of this study was to examine the relationship between body composition and disabling foot pain.

Methods

137 subjects aged 25 to 62 years were recruited across a range of BMI (17 to 50 kg/m2) as part of a study examining the relationship between obesity and musculoskeletal health. Disabling foot pain was determined from the Manchester Foot Pain and Disability Index (MFPDI) and was defined as current foot pain and pain in the last month, as well as recording at least one disability item on the MFPDI. Body composition was measured using dual x-ray absorptiometry.

Results

The BMI in this population was normally distributed around a mean of 32.2 kg/m2.The risk of disabling foot pain was associated with total fat mass (p<0.001) and skeletal muscle mass (p=0.01). However, when both total fat and skeletal muscle mass were included in the model, the relationship persisted for total fat mass but not muscle mass. The risk of disabling foot pain increased by 6% (95% confidence interval 2 - 9%) for every kilogram increase of total body fat, adjusted for age, gender, physical activity and skeletal muscle mass.

Conclusions

Fat mass, rather than muscle mass, is associated with foot pain and disability. This suggests that the effect of obesity on foot pain may not only be due to increased loading on the foot, but may also act via a metabolic mechanism through increased adiposity. Further work is needed to clarify the mechanisms for this effect and the relative importance of reducing body fat rather than simple weight loss in the reduction of foot pain.
Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution License ( https://​creativecommons.​org/​licenses/​by/​2.​0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Metagegevens
Titel
Fat mass is associated with disabling foot pain
Auteurs
Stephanie K Tanamas
Anita E Wluka
Patricia Berry
Hylton B Menz
Boyd J Strauss
Miranda Davies-Tuck
Joseph Proietto
John B Dixon
Graeme Jones
Flavia M Cicuttini
Publicatiedatum
01-12-2011
Uitgeverij
BioMed Central
Gepubliceerd in
Journal of Foot and Ankle Research / Uitgave bijlage 1/2011
Elektronisch ISSN: 1757-1146
DOI
https://doi.org/10.1186/1757-1146-4-S1-P54

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