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  • Author: Demosthenes B. Panagiotakos x
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George Antonogeorgos, Anastasios Papadimitriou, Demosthenes B. Panagiotakos, Kostas N. Priftis and Polyxeni Nikolaidou


Childhood obesity has become a modern epidemic with escalating rates. The aim of our study was to identify physical activity patterns among Greek schoolchildren and to examine their relationship with obesity.


700 adolescents age 10 to 12 years were evaluated through a standardized questionnaire. Several demographic, socioeconomic, and physical activity characteristics were recorded. Physical activity was assessed and adolescents were characterized as active and nonactive. Body height and weight were measured and body mass index was calculated in order to to classify subjects as overweight or obese (IOTF classification). Multiple logistic regression and multivariate techniques (principal components analysis) were performed.


Eight physical activity patterns were identified, including increased physical activity in weekdays and weekends, sports physical activity, vigorous, moderate, and low physical activity. Increased physical activity on weekends and vigorous physical activity in boys were negatively associated with being overweight or obese (OR: 0.65; 95% CI: 0.48−0.90 and OR: 0.66; 95% CI: 0.49−0.88, correspondingly) and moderate physical activity was marginally positively associated in girls (OR: 1.28; 95% CI: 0.97−1.69), after adjusting for several confounders.


Our findings demonstrate the important role of vigorous physical activity in the maintenance of normal weight of adolescents

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Evangelos Papataxiarchis, Demosthenes B. Panagiotakos, Venetia Notara, Matina Kouvari, Yannis Kogias, Petros Stravopodis, George Papanagnou, Spyros Zombolos, Yannis Mantas, Christos Pitsavos and for the GREECS Study Investigators, Greece

The association between physical activity, diabetes mellitus (DM), and long-term acute coronary syndrome (ACS) prognosis was evaluated. The GREECS study included 2,172 consecutive ACS patients from six Greek hospitals (2003–2004). In 2013–2014, a 10-year follow up was performed with 1,918 patients. Physical activity was categorized in never, rarely (monthly basis), 1–2 and ≥ 3 times/week. Multi-adjusted analysis revealed that 1–2 and ≥ 3 times/week vs. no physical activity had a protective effect on ACS incidence (OR = 0.63 95% CI 0.38, 1.05) and (OR = 0.63 95% CI 0.40, 0.99) respectively, only in patients without prior baseline CVD event. In a subgroup analysis, with DM as strata in these patients, engagement in physical activity (i.e., 1–2 times/week) had a significant protective effect among patients with diabetes (OR = 0.51, 95% CI 0.27, 0.96, p = .037). These findings revealed the beneficial role of exercise in secondary ACS prevention, even in DM patients. Public health-oriented policies should incorporate regular physical activity as a key protective factor in disease prognosis.