Share this article on:

00005768-200605001-0286000005768_2006_38_s474_lee_comorbidities_5abstract< 17_0_1_0 >Medicine & Science in Sports & Exercise© 2006 American College of Sports MedicineVolume 38(5) SupplementMay 2006p S474Physical Activity Pattern of Obese Children with and without Co‐Morbidities: 2526: Board#34 2:00 PM – 3:00 PM[Friday Afternoon Poster Presentations: Posters displayed from 1:00–6:00 p.m.: One-hour author presentation times are staggered from 2:00–3:00 p.m., 3:00–4:00 p.m., and 4:00–5:00 p.m.: F-25 Free Communication/Poster - Children Physical Activity and Health: FRIDAY, JUNE 2, 2006 2:00 PM – 5:00 PM: ROOM: Hall B]Lee, Jae-Hyun; Wilk, Boguslaw FACSM; Morrison, Katherine; Bar-Or, Oded FACSM1Sport Science Research Center of Korea Univ., Seoul, Republic of Korea.2Children 's Exercise and Nutrition Centre, Hamilton, ON, Canada.3Lipid Clinic, Hamilton, ON, Canada.4Children's Exercsie and Nutrition Centre, Hamilton, ON, Canada.Email: inossang@yahoo.co.kr PURPOSE: The aim of the present study was to compare objectively measured physical activity pattern of obese children with and without co-morbidities.METHODS: Physical activity pattern of 53 6∼17 year old obese children (boys: 23, girls: 30) who were on the waiting list at the Children's Exercise and Nutrition Centre in Canada were examined using uniaxial accelerometers (CSA 7164). Volunteers wore the accelerometers for one week and data recorded for at least four days with 10 hours per day were used for the analysis. BMI (body mass index) and % body fat using BIA (bio impedance analysis) were assessed and fasting lipids, glucose and insulin were measured. The relationship between 4 co-morbidity factors (triglyceride, glucose and insulin and low level of high density lipoprotein cholesterol) and physical activity variables (count per minute, time spent on each of light, moderate and vigorous activities) were investigated by Pearson correlation and also by partial correlation controlled for age. To compare the physical activity pattern of obese children with and without co-morbidities, subjects were divided into 3 groups according to the number of co-morbidity factors: group 1 (n=26) with no co-morbidity factor, group 2 (n=19) with 1 co-morbidity factor, group 3 (n=8) with 2 or more co-morbidity factors. Physical activity level (count/min) and time spent on various intensity activities were compared among groups by one-way ANCOVA with % body fat as a covariate because there was significant difference in % body fat among groups.RESULTS: Fasting insulin correlated positively with time spent on light activity (r=.301, p=.028) and negatively with time spent on moderate activity (r=−.301, p=.028). But after the influence of age was removed, these were no longer significant. The group comparison of physical activity also revealed no significant difference of any physical activity variables.CONCLUSION: Physical activity patterns of obese children with and without co-morbidities do not differ. Studies with a larger sample size may be needed to further verify this result.Physical Activity Pattern of Obese Children with and without Co‐Morbidities: 2526: Board#34 2:00 PM – 3:00 PMLee, Jae-Hyun; Wilk, Boguslaw FACSM; Morrison, Katherine; Bar-Or, Oded FACSMFriday Afternoon Poster Presentations: Posters displayed from 1:00-6:00 p.m.: One-hour author presentation times are staggered from 2:00-3:00 p.m., 3:00-4:00 p.m., and 4:00-5:00 p.m.: F-25 Free Communication/Poster - Children Physical Activity and Health: FRIDAY, JUNE 2, 2006 2:00 PM - 5:00 PM: ROOM: Hall B538