Abstract
Purpose
Individuals with Prader–Willi syndrome (PWS) exhibit reduced lean body mass and increased fat–lean mass ratio when compared with individuals of normal weight and obese ones. Thus, research on the association of functional limitations during gait and body composition may be of great importance from a rehabilitative viewpoint. In particular, the aim of this study was to compare the gait profile of persons with PWS to that of unaffected individuals and to see if a relationship exists between gait profile and body composition in individuals with PWS.
Methods
Eighteen individuals with PWS and 20 unaffected individuals (Healthy Group: HG) were assessed. Their gait pattern was quantified with 3D-Gait Analysis (3D-GA). Overall body weight, lean and fat masses were measured by dual-energy X-ray absorptiometry.
Results
Individuals with PWS were found to be characterized by a significantly different (p < 0.05) gait pattern with respect to healthy controls in terms of both kinematic and kinetic parameters. No correlations were found between kinematic parameters and overall mass and lean/fat mass, while some parameters associated with ground reaction force were found to be significantly correlated with overall mass, lean mass and fat mass. Significant regression models were obtained, including impact and propulsive force and loading rate.
Conclusion
Our data suggest that in individuals with PWS, gait is influenced by the overall and lean body mass. Thus, therapeutic strategies should target both weight reduction and lean mass increase to optimize gait, minimize articular stress, and reduce the risk of repetitive strain on the lower limbs.
Level of evidence
Level III: Case–control analytic study.
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The authors would like to acknowledge Eng. Maria Gina Mastroianni for her valuable contribution.
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Cimolin, V., Cau, N., Galli, M. et al. Gait strategy and body composition in patients with Prader–Willi syndrome. Eat Weight Disord 26, 115–124 (2021). https://doi.org/10.1007/s40519-019-00825-2
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DOI: https://doi.org/10.1007/s40519-019-00825-2