RESUMEN
Walking up and down stairs is a common and important activity of daily living. Women with fibromyalgia often show a reduced ability to perform this task.The objective of this study was to evaluate the test-retest reliability of stair negotiation tasks and to assess the impact of fibromyalgia symptoms on the ability to negotiate stairs.Forty-two women with fibromyalgia participated in this descriptive correlational study. The relevance of the stair negotiation (both walking up and down) was evaluated by assessing its association with the revised version of the fibromyalgia impact questionnaire (FIQ-R) and other health-related variables. Test-retest reliability was also analyzed. The main outcome measures were time spent walking up and down stairs and impact of fibromyalgia, quality of life, number of falls, weight, and lower limb strength and endurance.The intraclass correlation coefficient (ICC) for stair descent was 0.929 whereas that for ascent was 0.972. The score in these tests correlated significantly with the total score for the FIQ-R and the score for many of dimensions and symptoms: that is, physical function, overall impact of fibromyalgia, pain, energy, stiffness, restorative sleep, tenderness, self-perceived balance problems, and sensitivity.Given the importance of the stair negotiation as activity of daily living and the high reliability, both stair ascent and descent tasks may be useful as outcome measures in studies on patients with fibromyalgia.
Asunto(s)
Actividades Cotidianas , Evaluación de la Discapacidad , Fibromialgia/fisiopatología , Análisis y Desempeño de Tareas , Caminata , Accidentes por Caídas/estadística & datos numéricos , Adulto , Anciano , Femenino , Humanos , Extremidad Inferior/fisiopatología , Persona de Mediana Edad , Calidad de Vida , Reproducibilidad de los Resultados , Estadística como Asunto , Encuestas y CuestionariosRESUMEN
Propósito: El objetivo de este estudio fue analizar la fiabilidad del pico torque obtenido conun protocolo de valoración de la fuerza isométrica de flexores y extensores de rodilla.Material y método: Un total de 16 mujeres con fibromialgia (FM) (edad 54,9 ± 12,1) participaronen este estudio. El diseño consistió en un test-retest de 12 semanas de duración y laevaluación del pico torque isométrico se realizó con un dinamómetro isocinético (Biodexsystem 3). La evaluación consistió en 3 acciones máximas de contracción isométrica de losmúsculos extensores y flexores de rodilla. Se calcularon los índices de fiabilidad relativa(mediante coeficiente de correlación intraclase o CCI) y absoluta (mediante error estándarde medida o SEM y mínima diferencia real o SRD).Resultados y conclusión: El pico torque isométrico evaluado a través del dinamómetro isocinéticoes replicable tanto para los flexores como para los extensores de la rodilla. Este estudio muestradatos sobre el mínimo cambio real del pico torque en acciones isométricas de los extensoresy flexores de rodilla, que pueden ayudar en la interpretación de los resultados obtenidos enterapias basadas en actividad física, en personas con FM, de varias semanas de duración.
Objective: The aim of this study was to analyze the reliability of peak torque assessed using an isometric strength protocol of knee flexor and extensor muscles.Material and methods: A total of 16 women with Fibromyalgia (FM) (aged 54.9 ± 12.1) participated in this study. The design consisted of a 12-week test-retest, and isometric peak torque was assessed using an isokinetic dynamometer (Biodex system 3). The evaluation consisted of 3 maximal isometric contractions of knee extensor and flexor muscles. Relative intraclass correlation coefficient ICC) and absolute (standard error of measurement SEM and smallest real difference SRD) reliability indices were calculated.Result and conclusions: Isometric peak torque assessed using isokinetic dynamometer is reliable in knee flexor and extensor muscles. This study presents data on the smallest real difference of peak torque in isometric actions of knee flexor and extensor muscles, which can help interpreting results obtained in physical activity based therapies in individuals with FM of several weeks duration.