Impact of morphology on the oxygen consumption in adolescent idiopathic scoliosis

(2014)

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Abstract
Background: Adolescent idiopathic scoliosis (AIS) is the most common type of spine deformity during growth. AIS has very characteristic impact on body morphology. Generally AIS patients are tall and skinny. However, relationships between AIS, anthropometric and physiological characteristics are still not fully evaluated. Objective: The main aim of this study was to compare twenty-seven anthropometric data and oxygen consumption (VO2) between healthy and AIS girls. Materials and methods: Seven AIS girls and seven healthy female adolescents aged between 11 and 14 years were recruited for this study. Weight, height, body mass index (BMI), various body girths and diameters as well as skinfolds of each girl were measured. Oxygen consumption was evaluated at 2km.h-1, 4km.h-1, and 6km.h-1, using the treadmill test with an ergospirometer. Results: Fourteen anthropometric measures were significantly higher for the scoliotic patients. In contrast, the skinfolds were generally higher for the healthy group. There was no significant difference of the VO2 levels between the AIS and healthy groups. No relationship was noticed between VO2 levels and others anthropometric parameters neither in the healthy group nor in the AIS group. Numerous correlations between anthropometric data observed in healthy group were not maintained in the AIS group. Conclusion: AIS girls could be differentiated from healthy girls according to several anthropometric body parameters. The lack of correlations between the different anthropometric data in AIS group could reflect their physiological unbalance. The oxygen consumption at each studied gait speed between scoliotic patients and healthy girls are quite similar, not allowing to clearly conclude that body anthropometry could be a parameter that influence the oxygen consumption during gait.