Relación entre movilidad, funcionalidad y calidad de vida en pacientes con espondilitis anquilosante

Abstract

Objective Ankylosing Spondylitis (AS) usually conditions the quality of life (QoL) of these patients. Restricted range of motion is one of the characteristics of AS. The aim of this study was to assess the correlation among mobility, functionality, and quality of life in subjects with AS. Patients and methods A cross-sectional study was performed. Seven women and 28 men diagnosed with AS participated. Mobility outcomes were assessed by means of the Bath Ankylosing Spondylitis Metrology Index (BASMI): occiput-wall distance, modified Schöber test, cervical rotation, lumbar side-flexion and intermalleolar distance. The Bath Ankylosing Spondylitis Functional Index (BASFI) and the Bath Ankylosing Spondylitis Diasease Activity Index (BASDAI) assessed the functionality and activity of these patients. Quality of life was assessed with the SF-36 questionnaire. The Pearson test (r) or the rho Spearman tests (r s) were used depending on the normal distribution of the variables. Results All mobility measures of the BASMI index showed correlations (r) among them ranging from 0.43 to 0.8; p < 0.01. Negative correlations ranging from −0.43 to −0.57; p < 0.01 were shown between occiput to wall distance and the remaining mobility measures. The BASFI and BASDAI indexes did correlate with several dimensions of the SF-36 questionnaire. Finally, few of the mobility measures did show correlation with any of the dimensions evaluated by the SF-36 questionnaire. Conclusions Quality of life was not related to restricted mobility seen in AS subjects, whereas functionality was related with quality of life.