Oxygen uptake of overweight and obese children at different stages of a progressive treadmill test
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| Format: | Artículo científico |
| Sprache: | en |
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Editorial Ramón Cantó Alcaraz
2010
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| _version_ | 1876431550933893120 |
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| author | Agustín Meléndez-Ortega |
| author_facet | Agustín Meléndez-Ortega |
| contents | Oxygen uptake of overweight and obese children at different stages of a progressive treadmill test Agustín Meléndez-Ortega Catherine Lucy Davis Paule Barbeau Colleen Ann Boyle Multidisciplinarias (Ciencias Sociales) Introduction: Maximal oxygen uptake (VO2 max) is associated with cardiovascular and metabolic risks but it is difficult to assess in obese children. The objective of this study was to develop an equation to estimate VO2 (mL/kg/min) and to check the % of tests that were maximal according to recommended criteria. Methods: Stress tests were analyzed of 222 subjects (94 male and 128 female with a BMI above the 85 percentile for age and sex), and repeated 4 months later. Mean age was 9.4 + 1.1 years and weighed 52.4 + 13.3 kg. Body fat % (40.5 + 6.2) was determined by DXA (Hologic QDR 4500W). The protocol on the treadmill started with a warm up at 2.5 and 3 mph with a slope of 0% and 2%. The speed was kept at 3 mph for all the stages and the slope was increased 2% every 2 minutes. Statistical analysis (descriptive, ttest and ANOVAS 2x2x2) was done with SPSS 15.0. Results: Only 35% of the tests were maximal. The equation calculates was Y = 2.6x + 22.3 (x = protocol stage). Data pre and post treatment were not statistically different Discussion: Increments in VO2 were consistent despite subject diversity (sex, % body fat, physical fitness, treatment). Conclusion: To be able to estimate VO2 at the different stages of the test without complex equipment or specialized staff, will facilitate the performance of stress tests on a daily basis. 2010 artículo científico 1885-3137 https://www.redalyc.org/articulo.oa?id=71012449006 en http://www.redalyc.org/revista.oa?id=710 RICYDE. Revista Internacional de Ciencias del Deporte application/pdf Editorial Ramón Cantó Alcaraz RICYDE. Revista Internacional de Ciencias del Deporte (España) Num.18 Vol.VI |
| format | Artículo científico |
| id | redalyc_71012449006 |
| institution | Redalyc |
| language | en |
| publishDate | 2010 |
| publisher | Editorial Ramón Cantó Alcaraz |
| spellingShingle | Oxygen uptake of overweight and obese children at different stages of a progressive treadmill test Agustín Meléndez-Ortega Multidisciplinarias (Ciencias Sociales) Oxygen uptake of overweight and obese children at different stages of a progressive treadmill test Agustín Meléndez-Ortega Catherine Lucy Davis Paule Barbeau Colleen Ann Boyle Multidisciplinarias (Ciencias Sociales) Introduction: Maximal oxygen uptake (VO2 max) is associated with cardiovascular and metabolic risks but it is difficult to assess in obese children. The objective of this study was to develop an equation to estimate VO2 (mL/kg/min) and to check the % of tests that were maximal according to recommended criteria. Methods: Stress tests were analyzed of 222 subjects (94 male and 128 female with a BMI above the 85 percentile for age and sex), and repeated 4 months later. Mean age was 9.4 + 1.1 years and weighed 52.4 + 13.3 kg. Body fat % (40.5 + 6.2) was determined by DXA (Hologic QDR 4500W). The protocol on the treadmill started with a warm up at 2.5 and 3 mph with a slope of 0% and 2%. The speed was kept at 3 mph for all the stages and the slope was increased 2% every 2 minutes. Statistical analysis (descriptive, ttest and ANOVAS 2x2x2) was done with SPSS 15.0. Results: Only 35% of the tests were maximal. The equation calculates was Y = 2.6x + 22.3 (x = protocol stage). Data pre and post treatment were not statistically different Discussion: Increments in VO2 were consistent despite subject diversity (sex, % body fat, physical fitness, treatment). Conclusion: To be able to estimate VO2 at the different stages of the test without complex equipment or specialized staff, will facilitate the performance of stress tests on a daily basis. 2010 artículo científico 1885-3137 https://www.redalyc.org/articulo.oa?id=71012449006 en http://www.redalyc.org/revista.oa?id=710 RICYDE. Revista Internacional de Ciencias del Deporte application/pdf Editorial Ramón Cantó Alcaraz RICYDE. Revista Internacional de Ciencias del Deporte (España) Num.18 Vol.VI |
| title | Oxygen uptake of overweight and obese children at different stages of a progressive treadmill test |
| topic | Multidisciplinarias (Ciencias Sociales) |
| url | https://www.redalyc.org/articulo.oa?id=71012449006 |