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Titre : | Validation of the Narrowing Beam Walking Test in Lower Limb Prosthesis Users (2018) |
Auteurs : | Andrew Sawers ; Brian Hafner |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (Vol. 99, n° 8, 2018) |
Article en page(s) : | p. 1491-1498 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Amputés ; Rééducation et réadaptation |
Mots-clés: | Accidental falls ; Chutes accidentelles ; Amputees ; Patient outcome assessment ; Évaluation des résultats des patients ; Postural balance ; Équilibre postural |
Résumé : |
Objective To evaluate the content, construct, and discriminant validity of the Narrowing Beam Walking Test (NBWT), a performance-based balance test for lower limb prosthesis users. Design Cross-sectional study. Setting Research laboratory and prosthetics clinic. Participants Unilateral transtibial and transfemoral prosthesis users (N=40). Interventions Not applicable. Main Outcome Measures Content validity was examined by quantifying the percentage of participants receiving maximum or minimum scores (ie, ceiling and floor effects). Convergent construct validity was examined using correlations between participants NBWT scores and scores or times on existing clinical balance tests regularly administered to lower limb prosthesis users. Known-groups construct validity was examined by comparing NBWT scores between groups of participants with different fall histories, amputation levels, amputation etiologies, and functional levels. Discriminant validity was evaluated by analyzing the area under each tests receiver operating characteristic (ROC) curve. Results No minimum or maximum scores were recorded on the NBWT. NBWT scores demonstrated strong correlations (ρ=.70‒.85) with scores/times on performance-based balance tests (timed Up and Go test, Four Square Step Test, and Berg Balance Scale) and a moderate correlation (ρ=.49) with the self-report Activities-specific Balance Confidence scale. NBWT performance was significantly lower among participants with a history of falls (P=.003), transfemoral amputation (P=.011), and a lower mobility level (P<.001 the nbwt also had largest area under roc curve and was only test to exhibit an that statistically significantly>.50 (ie, chance). Conclusions The results provide strong evidence of content, construct, and discriminant validity for the NBWT as a performance-based test of balance ability. The evidence supports its use to assess balance impairments and fall risk in unilateral transtibial and transfemoral prosthesis users. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999318302193 |