Abstract
BackgroundStudies have shown a positive correlation between higher physical activity (PA) and health benefits. However, device-based assessment of PA and sedentary time (ST) in people with adolescent idiopathic scoliosis (AIS) has not been deeply investigated.ObjectiveAnalysis and comparison of weekend and weekdays PA and ST using multiple accelerometers in people with AIS with different curvature severity compared to healthy controls.Methods24 participants with AIS divided into 2 groups of 12 with Cobb angles < 40° and > 40°, along with 12 age and BMI matched healthy controls. Daily PA and ST during four consecutive days were measured using four tri-axial accelerometers. Clinical functional assessment was performed using the scoliosis research society (SRS-22) questionnaire.ResultsThe combined weekend and weekdays average daily step count was found to be 22% and 29% lower in the AIS groups with Cobb angle < 40° and > 40°, respectively, compared to the controls. The average ST was also reported to be 5% and 7% higher in the AIS groups with Cobb angle < 40° and > 40°, respectively, compared to the controls. The reported differences were significant in the AIS group with higher Cobb angle (p≤0.05). No significant differences in PA or ST were reported between the AIS groups based on curvature severity.ConclusionsDecreased PA and increased ST observed in patients with AIS may have long term health implications and may play a role in the disease process. The device-based assessment of PA to understand potential benefits in clinical practice is recommended.
Highlights
Scoliosis is the abnormal three-dimensional curvature of the spine including hypokyphosis, rotation and coronal deformities
Decreased physical activity (PA) and increased sedentary time (ST) observed in patients with adolescent idiopathic scoliosis (AIS) may have long term health implications and may play a role in the disease process
The AIS group with Cobb angle > 40 ̊ reported a significantly less percentage of time spent physically active (p
Summary
Scoliosis is the abnormal three-dimensional curvature of the spine including hypokyphosis, rotation and coronal deformities. Scoliosis in children can be rapidly progressive during the growing years [1]. The degree of spinal curvature identified on a posteroanterior radiograph is measured by the Cobb angle [2], the angle subtended by the two most tilted vertebrae. AIS patients diagnosed with a Cobb angle > 20 ̊ require treatment based on factors including the location of the curvature of the spine, skeletal maturity, and age. Radiographic images are used as an indirect measure of skeletal maturity which is presented in terms of the Risser sign [3]. Curves between 25 ̊ to 40 ̊ in growing children are treated with spinal bracing to reduce the risk of curve progression [4]. Device-based assessment of PA and sedentary time (ST) in people with adolescent idiopathic scoliosis (AIS) has not been deeply investigated.
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