Angela Polito

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OBJECTIVE Inadequate intakes of micronutrients in elderly negatively affect the nutritional status. Zinc is an essential micronutrient in the elderly, especially in relation to its impact on immune function, bone mass, cognitive function and oxidative stress. However, data are lacking on zinc intake and status during normal ageing. In this study, we(More)
OBJECTIVE To examine the reliability of a set of health-related physical fitness tests used in the European Union-funded Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) Study on lifestyle and nutrition among adolescents. DESIGN A set of physical fitness tests was performed twice in a study sample, 2 weeks apart, by the same researchers.(More)
OBJECTIVE To describe sedentary behaviors in adolescents and to examine the influence of media availability on TV viewing. METHOD The study assessed 3278 adolescents (1537 males and 1741 females, 12.5-17.5 years) involved in the HELENA study (2007). Adolescents reported hours of TV viewing, computer games, console, internet for study and non-study(More)
Obesity is increasing in middle-aged adults and the elderly. This multifactorial phenomenon may have different causes, such as incorrect nutritional and dietary habits, psycho-social aspects and sedentary life-style. It is becoming a serious problem, due also to the world's ageing society. The aim of this study is to provide preliminary results on BMI,(More)
OBJECTIVE We studied in European adolescents (i) the association between cardiorespiratory fitness and ideal cardiovascular health as defined by the American Heart Association and (ii) whether there is a cardiorespiratory fitness threshold associated with a more favourable cardiovascular health profile. METHODS Participants included 510 (n=259 girls)(More)
A randomised double-blind placebo-controlled design was employed to investigate the effects of Zn supplementation on cognitive function in 387 healthy adults aged 55-87 years. Several measures of visual memory, working memory, attention and reaction time were obtained using the Cambridge Automated Neuropsychological Test Battery at baseline and then after 3(More)
BACKGROUND The purpose of this study was to evaluate the overall diet quality effects, mainly on antioxidant nutritional status and some cytokines related to the cellular immune response as well as oxidative stress in a healthy Italian population group. METHODS An observational study was conducted on 131 healthy free-living subjects. Dietary intake was(More)
BACKGROUND Leptin is thought to represent a peripheral signal involved in the regulation of energy balance. Its action has been studied in animals and obese subjects. Little is known about leptin's role during negative energy balance. OBJECTIVE The objective was to evaluate the relation between energy turnover, body composition, and plasma leptin(More)
Given the key role of Zn in many physiological functions, optimal Zn status could be a predictive parameter of successful ageing. However, the benefit of Zn supplementation is still a matter of debate since Zn supplementation has been reported to be associated with the alteration of Cu status and lipid metabolism. As part of the Zenith Project, the present(More)
OBJECTIVE To explore the clustering of different lifestyle behaviors and whether this clustering differs by gender, age, and health-related fitness. DESIGN Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) cross-sectional study. SETTING Ten European cities. PARTICIPANTS A total of 2,084 adolescents (12.5-17.5 years). MAIN OUTCOME(More)