Miguel Espinoza-Silva1, Pedro Ángel Latorre-Román2, Juan Párraga-Montilla2, Felipe Caamaño-Navarrete3, Daniel Jerez-Mayorga4, Pedro Delgado-Floody5. 1. Departamento de Educación Física, Deportes y Recreación, Universidad de La Frontera, Temuco, Chile. 2. Departamento de Didáctica de la Expresión Musical, Plástica y Corporal, Universidad de Jaén, Jaén, España. 3. Facultad de Educación, Universidad Católica de Temuco, Temuco, Chile. 4. Facultad de Ciencias de la Rehabilitación, Universidad Andrés Bello, Santiago, Chile. 5. Departamento de Educación Física, Deportes y Recreación, Universidad de La Frontera, Temuco, Chile. Electronic address: pedro.delgado@ufrontera.cl.
Abstract
BACKGROUND: High-intensity interval training (HIIT) has been widely used to fight cardiovascular risk factors in adolescents and adults, but no data are available on its applicability in children. OBJECTIVES: To assess the effects of HIIT on different anthropometric and cardiovascular parameters of overweight and obese children aged 7-9 years. MATERIAL AND METHODS: Four groups were formed: 1) an overweight control group (OWCG, n=30, BMI=21.60±3.72kg/m2); 2) an obesity control group (OCG, n=34, BMI=23.92±3.11kg/m2); 3) an overweight intervention group (OWIG, n=69, BMI=20.01±1.88kg/m2), and 4) an obesity intervention group (OIG, n=141, BMI=24.12±2.66kg/m2). BMI, body fat (BF), waist circumference, height-waist ratio, systolic and diastolic blood pressure and cardiorespiratory fitness (CRF) were assessed before and after intervention. RESULTS: There were significant differences in BMI (P<.001), BF (P<.001), and CRF (P<.001) between the groups (control vs. intervention) before and after intervention (OWCG vs. OWIG and OCG vs. OIG). BMI decreased in the OWIG (BMI, 20.01±1.88 at baseline vs. 19.00±2.02 after HIIT, P<.001) and OIG (BMI, 24.12±2.66 at baseline vs. 23.23±3.23 after HIIT, P<.001) groups. Similarly, BF decreased in the OWIG (BF, 21.84±4.97 at baseline vs. 19.55±4.81% after HIIT, P<.001) and OIG (BF, 30.26±11.49 at baseline vs. 26.81±6.80% after HIIT, P<.001) groups. CRF improved in both intervention groups (P<.001). There was a significant decrease in the prevalence rate of schoolchildren with obesity (from 66.4% to 49.6%) (P<.001). CONCLUSION: The intervention conducted in the school setting improved the anthropometric and cardiovascular parameters of schoolchildren, and also allowed for reducing the proportion of schoolchildren with obesity.
BACKGROUND: High-intensity interval training (HIIT) has been widely used to fight cardiovascular risk factors in adolescents and adults, but no data are available on its applicability in children. OBJECTIVES: To assess the effects of HIIT on different anthropometric and cardiovascular parameters of overweight and obesechildren aged 7-9 years. MATERIAL AND METHODS: Four groups were formed: 1) an overweight control group (OWCG, n=30, BMI=21.60±3.72kg/m2); 2) an obesity control group (OCG, n=34, BMI=23.92±3.11kg/m2); 3) an overweight intervention group (OWIG, n=69, BMI=20.01±1.88kg/m2), and 4) an obesity intervention group (OIG, n=141, BMI=24.12±2.66kg/m2). BMI, body fat (BF), waist circumference, height-waist ratio, systolic and diastolic blood pressure and cardiorespiratory fitness (CRF) were assessed before and after intervention. RESULTS: There were significant differences in BMI (P<.001), BF (P<.001), and CRF (P<.001) between the groups (control vs. intervention) before and after intervention (OWCG vs. OWIG and OCG vs. OIG). BMI decreased in the OWIG (BMI, 20.01±1.88 at baseline vs. 19.00±2.02 after HIIT, P<.001) and OIG (BMI, 24.12±2.66 at baseline vs. 23.23±3.23 after HIIT, P<.001) groups. Similarly, BF decreased in the OWIG (BF, 21.84±4.97 at baseline vs. 19.55±4.81% after HIIT, P<.001) and OIG (BF, 30.26±11.49 at baseline vs. 26.81±6.80% after HIIT, P<.001) groups. CRF improved in both intervention groups (P<.001). There was a significant decrease in the prevalence rate of schoolchildren with obesity (from 66.4% to 49.6%) (P<.001). CONCLUSION: The intervention conducted in the school setting improved the anthropometric and cardiovascular parameters of schoolchildren, and also allowed for reducing the proportion of schoolchildren with obesity.
Authors: Pedro Ángel Latorre-Román; Iris Paola Guzmán-Guzmán; Juan Antonio Párraga-Montilla; Felipe Caamaño-Navarrete; Jesús Salas-Sánchez; Constanza Palomino-Devia; Felipe Augusto Reyes-Oyola; Cristian Álvarez; Ana de la Casa-Pérez; Antonio J Cardona Linares; Pedro Delgado-Floody Journal: Pediatr Obes Date: 2022-03-01 Impact factor: 3.910
Authors: Stephanie L Duncombe; Alan R Barker; Bert Bond; Renae Earle; Jo Varley-Campbell; Dimitris Vlachopoulos; Jacqueline L Walker; Kathryn L Weston; Michalis Stylianou Journal: PLoS One Date: 2022-05-04 Impact factor: 3.752