RESUMEN
Low back pain (LBP) is a prevalent condition across cultures, and the tools used for assessment of distinct groups need to be evaluated. Our goal was to investigate the psychometric properties of physical performance tests (PPTs) in a group of Brazilian Portuguese-speaking (BPS) individuals with LBP in a nonexperimental, descriptive study. BPS individuals with and without LBP were studied, and PPTs, self-report questionnaires, and VAS pain score were evaluated. Thirty individuals with LBP (Patient Group (PG)) and 30 healthy subjects (Control Group (CG)) were assessed by 7 PPTs: timed up and go (TUG), loaded forward reach (LFR), 50-foot walk (50 FW), 5-minute walking (5 MW), sit-stand (SS), repeated trunk flexion (RTF), and lumbar flexion (LF). The PG completed the Roland Morris Disability Questionnaire (RMDQ) and the Self-efficacy Scale (SES) and rated their current level of pain by a Visual Analog Scale (VAS). PPTs were highly reliable in the PG with ICC scores ranging from 0.92 to 0.99 (p < 0.0001). The CG performed better in all PPTs but the LFR. In the PG the correlations among the PPT varied from 0.38 to 0.78 (p < 0.05). RMDQ correlated significantly with RTF, SS, 5 MW (0.38 to 0.47, p < 0.05). PPTs were reliable with the BPS patients and able to differentiate groups. RMDQ complements the assessment of these patients.
Asunto(s)
Dolor de la Región Lumbar/diagnóstico , Adulto , Brasil/epidemiología , Estudios de Casos y Controles , Características Culturales , Evaluación de la Discapacidad , Femenino , Humanos , Dolor de la Región Lumbar/etnología , Dolor de la Región Lumbar/fisiopatología , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Portugal/etnología , Valor Predictivo de las Pruebas , Psicometría , Reproducibilidad de los Resultados , Autoeficacia , Encuestas y Cuestionarios , Adulto JovenRESUMEN
OBJECTIVES: To compare gait during a 5-minute walk among healthy individuals, persons with spinal cord injury (SCI), and stroke survivors and to investigate whether simultaneous measures of oxygen consumption enhance information about performance. DESIGN: Descriptive study. SETTING: Veterans Affairs medical center. PARTICIPANTS: Thirty-nine healthy individuals, 10 persons with SCI, and 20 stroke survivors. INTERVENTIONS: Participants were fitted with a portable gas analyzer and walked on a 5-m walkway for 5 minutes. MAIN OUTCOME MEASURES: Measures of walk distance, gait speed, gait energy expenditure (GEE), and gait cost were obtained, along with measures of ventilation (.Ve), ventilation and carbon dioxide production slope (.Ve . .VCo2), oxygen pulse, and heart rate. RESULTS: The SCI group (127.65+/-81.74m) walked less than the stroke survivors (148.80+/-64.3m) or the healthy group (268.90+/-35.01m) but had higher energy demands, as shown by GEE (SCI group, 13.28+/-3.23mL.kg(-1).min(-1); stroke group, 10.18+/-2.14mL.kg(-1).min(-1); healthy group, 9.61+/-1.90mL.kg(-1).min(-1)) and by gait cost (SCI group,.57+/-.40 mL.kg(-1).m(-1); stroke group,.40+/-.52mL.kg(-1).m(-1); healthy group,.18+/-.02mL.kg(-1).m(-1)). Compared with the healthy group, the stroke group had higher .Ve (stroke group, 22.34+/-5.20L/min vs healthy group, 16.11+/-3.22L/min) and .Ve . .VCo2 slope (24.22+/-8.80 vs 18.73+/-5.44, respectively). CONCLUSION: Use of metabolic assessment during the 5-minute walk was feasible and provided further information for evaluating gait performance with the subjects studied.