Association of Physical Fitness and Diet with Body Weight in Austrian Adolescents.

Background/objectives: Physical fitness and diet along with body weight are key determinants of health. Excess body weight, poor dietary choices, and low physical fitness, however, are becoming increasingly prevalent in adolescents. In order to develop adequate intervention strategies, additional research on potential interaction effects of these entities is needed.

Male Endurance Athletes: Examination of Energy and Carbohydrate Availability and Hormone Responses.

Background: This study investigated the effects of decreased energy availability (EA) and carbohydrate availability (CA) on reproductive and metabolic hormones in male endurance-trained athletes.

Methods: Thirteen athletes (age: 26.08 ± 4.

Associations of lifestyle behaviors with mental health in a nationwide cross-sectional survey of 152,860 Brazilian students.

Objective: To evaluate the association between modifiable lifestyle behaviors and mental health indicators in Brazilian adolescents.

Methods: This cross-sectional study used data from the 2019 National Survey of School Health including 152,860 students. The lifestyle behaviors and mental health indicators were obtained from a self-reported questionnaire.

Determinants of Engagement in Leisure-Time Physical Activity and Club Sports among University Students: A Large-Scale Study.

Various socio-demographic, environmental, and lifestyle-related factors have been reported to be associated with physical activity (PA) habits. However, there exist insufficient data comparing different forms of engagement in PA, sports, and exercise. This study aimed to investigate potential factors associated with the engagement in leisure-time PA (LPA) and club sports (CSs) in a large sample of college/university students.

Association of physical activity and sitting time with tobacco and alcohol use in 222,495 adolescents from 66 countries.

Background: The prevalence of tobacco and alcohol use among adolescents is alarming, and these substances are among the leading risk factors for current and future health among adolescents. Physical activity has the potential to help prevent substance use among adolescents. The objective of this study was to evaluate the association between physical activity, modes of transportation to or from school, and sitting time with tobacco and alcohol use among 222,495 adolescents.