Publication: Obesity Indices for Predicting Functional Fitness in Children and Adolescents With Obesity
Issued Date
2021-12-15
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22962360
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2-s2.0-85121983321
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Mahidol University
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SCOPUS
Bibliographic Citation
Frontiers in Pediatrics. Vol.9, (2021)
Suggested Citation
Kanokporn Udomittipong, Teerapat Thabungkan, Akarin Nimmannit, Prakarn Tovichien, Pawinee Charoensitisup, Khunphon Mahoran Obesity Indices for Predicting Functional Fitness in Children and Adolescents With Obesity. Frontiers in Pediatrics. Vol.9, (2021). doi:10.3389/fped.2021.789290 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/77400
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Title
Obesity Indices for Predicting Functional Fitness in Children and Adolescents With Obesity
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Abstract
Objectives: We aimed to determine the obesity indices that affect 6-min walk test (6-MWT) distance in children and adolescents with obesity and to compare the 6-MWT distance of obese subjects with that of normal-weight subjects. Methods: Obese children and adolescents aged 8–15 years and normal-weight age- and gender-matched controls were enrolled. All participants performed the 6-MWT; respiratory muscle strength (RMS), including maximal inspiratory pressure and maximal expiratory pressure; and spirometry. Data between groups were compared. In the obesity group, correlation between obesity indices and pulmonary function testing (6-MWT, RMS, and spirometry) was analyzed. Results: The study included 37 obese and 31 normal-weight participants. The following parameters were all significantly lower in the obesity group than in the normal-weight group: 6-MWT distance (472.1 ± 66.2 vs. 513.7 ± 72.9 m; p = 0.02), forced expiratory volume in one second/forced vital capacity (FEV1/FVC) (85.3 ± 6.7 vs. 90.8 ± 4.5%; p < 0.001), forced expiratory flow rate within 25–75% of vital capacity (FEF25−75%) (89.8 ± 23.1 vs. 100.4 ± 17.3 %predicted; p = 0.04), and peak expiratory flow (PEF) (81.2 ± 15 vs. 92.5 ± 19.6 %predicted; p = 0.01). The obesity indices that significantly correlated with 6-MWT distance in obese children and adolescents were waist circumference-to-height ratio (WC/Ht) (r = −0.51; p = 0.001), waist circumference (r = −0.39; p = 0.002), body mass index (BMI) (r = −0.36; p = 0.03), and chest circumference (r = −0.35; p = 0.04). WC/Ht was the only independent predictor of 6-MWT distance by multiple linear regression. Conclusions: Children and adolescents with obesity had a significantly shorter 6-MWT distance compared with normal-weight subjects. WC/Ht was the only independent predictor of 6-MWT distance in the obesity group.