Reliability and validity of daily physical activity measures during inpatient spinal cord injury rehabilitation:

摘要

Objectives:To assess the test–retest reliability and convergent validity of daily physical activity measures during inpatient spinal cord injury rehabilitation.Design:Observational study.Setting:Two inpatient spinal cord injury rehabilitation centres.Subjects:Participants (n?=?106) were recruited from consecutive admissions to rehabilitation.Methods:Physical activity during inpatient spinal cord injury rehabilitation stay was recorded on two days via (1) wrist accelerometer, (2) hip accelerometer if ambulatory, and (3) self-report (Physical Activity Recall Assessment for People with Spinal Cord Injury questionnaire). Spearman’s correlations and Bland–Altman plots were utilized for test–retest reliability. Correlations between physical activity measures and clinical measures (functional independence, hand function, and ambulation) were performed.Results:Correlations for physical activity measures between Day 1 and Day 2 were moderate to high (ρ?=?0.53–0.89). Bland–Altman plots showed minimal bias and more ...