Victims and Perpetrators of Bullying in Physical Education Lessons: The Role of Peer Support, Weight Status, Gender, and Age in Polish Adolescents.

Physical education is a space in which adolescents may become the victims or perpetrators of bullying. The aim of this study was to evaluate the relationship between being a victim or perpetrator of physical, verbal, or social bullying in physical education, and peer support, gender, weight status, and age. The sample consisted of 2, 848 adolescents (1, 512 girls and 1, 336 boys) aged 14-16 from Poland.

The Physical Activity Questionnaire for the Elderly (PAQE): A Polish Adaptation.

The aim of the study is to assess the reliability and validity of the Polish adaptation of the Physical Activity Questionnaire for the Elderly (PAQE-PL). One hundred and four older adults (75 women and 29 men) aged 65 to 89 (mean 72.2 ± 5.

Relationship between body composition and the level of aerobic and anaerobic capacity in highly trained male rowers.

Background: Body composition may affect the potential for success in sports. For this reason, our study aimed to determine the impact of body composition on the level of aerobic and anaerobic capacity in competitive rowers.

Methods: The study involved 48 males aged 20±2 years.

Polish Adaptation of the Yale Physical Activity Survey: Measurement Properties.

The aim of this study was to assess the measurement properties of a Polish adaptation of the Yale Physical Activity Survey (YPAS-PL). The Polish cultural adaptation of the YPAS was administered to a group of 104 people aged 65 to 89 years (mean age 72 ± 5). To assess the reliability of the YPAS-PL, a test-retest procedure was applied.

Validity and Reliability of the Polish Adaptation of the CHAMPS Physical Activity Questionnaire.

The aim of the study was to investigate the reliability and construct validity of the Polish adaptation of the Community Health Activities Model Program for Seniors (CHAMPS) physical activity questionnaire among the elderly. The sample included 104 volunteers, 75 women (age = 71.0 ± 5.

Physical activity in the therapy of overweight and obesity in children and adolescents. Needs and recommendations for intervention programs.

Overweight and obesity may lead to serious health problems, and negatively affect everyday functioning in physical, psychological and social spheres. The high prevalence of overweight and obesity in children and adolescents constitutes a huge public health burden. One way of designing and implementing behavioral interventions aimed at the reduction of adipose tissue is to promote physical activity.

Is Underweight Associated with more Positive Body Image? Results of a Cross-Sectional Study in Adolescent Girls and Boys.

The aim of the study was to investigate the relationship between body image and prevalence of underweight, normal weight, and overweight in adolescents. The study included 1702 girls and 1547 boys, aged 14-16 years, who completed questionnaire assessing body satisfaction. The participants' BMI status: underweight, normal weight or overweight was determined on the basis of BMI cut-off values.

Body image, BMI, and physical activity in girls and boys aged 14-16 years.

The aim of this study was to investigate the relationship between body image, body mass index (BMI), and physical activity in adolescents. The study included 1702 girls and 1547 boys aged 14-16 years. Moderate-to-vigorous physical activity (MVPA) was evaluated by the Physical Activity Screening Measure.

The effect of sensorimotor training on the postural stability of visually impaired women over 50 years of age.

Previous studies indicated that blind and visually impaired people are a group with greater risk of falls. Postmenopausal changes significantly decrease physical efficiency and impair the body's mechanisms for maintaining postural stability. In addition, the frequency of falls among women is much higher than in men.

Physical activity of Poles--critical analysis of research 2010-2014.

The aim of the study was an analysis of research on the physical activity (PA) carried out among Poles from 2010 - 2014 on a national scale. The obtained results concerning PA and recommended levels of PA, in particular those issued by the World Health Organization (WHO), were taken into consideration. The research articles were obtained through searching English-language scientific databases and common search engines.

Underweight in 14 to 16 year-old girls and boys: prevalence and associations with physical activity and sedentary activities.

Introduction And Objectives: Underweight is associated with increased mortality of adults when compared to normal weight or overweight individuals. Studies of associations between underweight and physical activity levels in adolescents are sparse. The aim of this study was to determine the prevalence of underweight amongst 14 to 16 year-old girls and boys in tandem with the levels of physical activity and time spent in sedentary activities.

Habitual physical activity as a determinant of the effect of moderate physical exercise on postural control in older men.

The aim of the study was to compare the effect of exercise on postural control (PC) among the elderly with lower or higher level of habitual physical activity (HPA). The study involved 17 elderly men (mean age 72.9 ± 4.

Effect of moderate physical exercise on postural control among 65-74 years old men.

The aim of this study was to assess the changes in the postural control (PC) during quiet stance among elderly men with fatigue induced by moderate exercise, and to assess the relationships between changes in PC and somatic indices (body mass index (BMI), waist to hip ratio (WHR)), load during exercise, and post-exercise blood lactate (BL) concentration. The study involved 17 elderly men (68.4±2.

Effect of Tai Chi on body balance: randomized controlled trial in elderly men with dizziness.

The purpose of this study was to assess the effect of 18-week Tai Chi training on body balance in a dynamic trial among elderly men with dizziness. The study covered subjects aged 60 to 80 years. We identified 40 men who reported a history of dizziness.

Test-retest reliability of measurements of the center of pressure displacement in quiet standing and during maximal voluntary body leaning among healthy elderly men.

The aim of the study was to evaluate intra- and intersession test-retest reliability for the measurements of centre of pressure displacement in quiet standing and during maximal voluntary body leaning (approximate area of stability limits). 27 elderly men participated in the study (71.4±4.

Effects of systolic blood pressure (SBP) on a postural stability in elderly men subjected to moderate exercise.

The aim of the study was to assess the effects of SPB on a range of postural stability changes occurring after moderate exercise in elderly people. Twenty-seven males from the age of 65-81 years old (mean 71.6±4.

Physical activity and functional fitness in institutionalized vs. independently living elderly: a comparison of 70-80-year-old city-dwellers.

The purpose of the study was to compare the level of energy expenditure due to physical activity (EEPA) and functional fitness (FF) in 59 women and 82 men aged 70-80 years, divided into three groups: permanent residents in assisted-living facilities (ALFs), participants in adult day care centers (DCCs) and older people living independently, members in community senior centers (CSCs). EEPA and FF were analyzed taking into consideration sex differences. The energy expenditure tended to be lower in DCCs and ALFs subjects than in CSCs members, but significant differences were obtained only in women.

Insulin resistance, oxidative stress markers and the blood antioxidant system in overweight elderly men.

The purpose of the study was to examine in the blood of overweight men aged from 62 to 83 years, the relationships between age and insulin resistance, selected parameters of the oxidative stress, and the antioxidant defense system. The population studied was divided into two groups: the group 'young-old' consisted of men aged 62 to 74 years old, and the group 'old-old'--of men aged between 75 and 83 years. The total antioxidative status (TAS) and concentrations of thiobarbituric acid reactive substances (TBARS) were measured in the blood plasma.

[Melatonin concentrations and other parameters of blood antioxidant defense system in elderly men with various levels of physical activity].

It is well documented that regular physical activity and increased levels of melatonin may enhance the blood antioxidant system. The aim of the present study was to evaluate the antioxidant defense mechanisms, in particular, the antioxidant potential of melatonin in groups of elderly men (mean age 70 years), marked of on the basis of habitual physical activity level. To estimate the physical activity of the study population, weekly energy expenditure was measured in each subject with a Caltrac accelerometer.

[Glucosamine concentration in serum of old persons with hyperinsulinemia and normal insulin levels].

Increased glucose metabolism through the hexosamine biosynthesis pathway has been shown to mediate many of adverse effects i.e. desensitisation of glucose transport in tissues, an inhibition of glycolysis and glycogen synthesis in skeletal muscles, an impairment of insulin secretion in pancreatic islet cells, arteriosclerosis and nephropathy by stimulation of growth factor TGF-alpha and TGF-beta 1 promoters expression.