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Öğe The relationships among obesity, physical activity, the knowledge level about obesity, watching food ads on TV with interest, and the number of weekly school canteen usage in adolescents(2011) Ziyagil, M. Akif; İmamoğlu, Osman; Sarıoğlu, Özlem; Çekin, Resul; Ziyagil, Fatma; Kabadayı, Menderes; Eliöz, Murat; Çebi, MehmetThis study investigates the effects of physical activity, the knowledge level about obesity, watching food ads on TV and school canteen usage on body mass index (BMI) for male (1227) and female (773) children in the middle and high schools. The results demonstrated that body height and weight, and BMI significantly differentiated with respect to age and gender groups. The mean body weight and BMI in exercise group were lower than sedanters. The mean body weight changed depending on knowledge level about obesity. The group watching food ads on TV has higher averages than sedanters in the body weight and BMI. School canteen usage has no effect on the body weight and BMI© 2011 Published by Elsevier Ltd.Öğe Multi-instrument assessment of physical activity in female office workers(Walter de Gruyter GmbH, 2016) Can, Sema; Gündüz, Nevin; Arslan, Erşan; Biernat, Elzbieta; Ersöz, Gülfem; Kilit, BülentObjectives: The aim of this study was to examine the multi-instrument assessment of physical activity in female office workers. Material and Methods: Fifty healthy women (age (mean ± standard deviation): 34.8±5.9 years, body height: 158±0.4 cm, body weight: 61.8±7.5 kg, body mass index: 24.6±2.7 kg/m2) workers from the same workplace volunteered to participate in the study. Physical activity was measured with the 7-day Physical Activity Assessment Questionnaire (7-d PAAQ), an objective multi-sensor armband tool, and also a waist-mounted pedometer, which were both worn for 7 days. Results: A significant correlation between step numbers measured by armband and pedometer was observed (r = 0.735), but the step numbers measured by these 2 methods were significantly different (10 941±2236 steps/day and 9170±2377 steps/day, respectively; p < 0.001). There was a weak correlation between the value of 7-d PAAQ total energy expenditure and the value of armband total energy expenditure (r = 0.394, p = 0.005). However, total energy expenditure values measured by armband and 7-d PAAQ were not significantly different (2081±370 kcal/day and 2084±197 kcal/day, respectively; p = 0.96). In addition, physical activity levels (average daily metabolic equivalents (MET)) measured by armband and 7-d PAAQ were not significantly different (1.45±0.12 MET/day and 1.47±0.24 MET/day, respectively; p = 0.44). Conclusions: The results of this study showed that the correlation between pedometer and armband measurements was higher than that between armband measurements and 7-d PAAQ self-reports. Our results suggest that none of the assessment methods examined here, 7-d PAAQ, pedometer, or armband, is sufficient when used as a single tool for physical activity level determination. Therefore, multi-instrument assessment methods are preferable.
