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Study aim: To explore how elderly people with different living conditions are characterized by their fitness, body composition, and quality of life.Material and methods: Women aged 60 years and over (n = 60; age = 76.2 ± 7.6 years) were examined in cross-sectional study from a medium-sized city in western Hungary. Participants were chosen from a twilight home (n=27, age = 79.4 ± 7.7years) and clubs for retired people (n = 33, age = 73.7 ± 6.6 years). Physical fitness status was assessed by Fullerton Functional Fitness Test - Senior Fitness Test (FFFT); body composition (BC) with Inbody-720 bioelectrical impedance spectroscopy; and quality of life with WHOQOL-OLD questionnaire. Data were analysed with the use of t-test for independent samples and stepwise discriminant analysis.Results: FFFT shows significant differences in each variable: lower and upper body strength, aerobic endurance, upper and lower body flexibility, and dynamic balance. These variables were significantly higher in the clubs for retired people. The BC of twilight home residents was significantly lower in height and fat-free mass. Regarding quality of life, there were significant differences in perception, autonomy, and sociability for the favour of elderly in clubs; however, there were no differences in activities of past, present and future, or differences in attitudes towards death or intimacy.Conclusions: A sedentary and institutionalized lifestyle with little variety in daily activity and programing has a negative effect on physical fitness status, body composition, and quality of life. Self-motivation, active lifestyle, and regular and varied programs seem to have leading roles in the quality of life in elder population.
EN
Study aim: To assess body composition, health awareness and cardiorespiratory fitness in female university students differing in volume of obligatory physical activity classes.Material and methods: 109 female students of the University of West Hungary volunteered to participate in the study. The subjects were divided into two groups according to frequency and volume of obligatory physical activity: students of recreation and health education programmes (RHE; n = 27) and of social pedagogy, tourism and catering, and teacher training programmes (STT; n = 82). Basic somatic characteristics were measured, body composition was assessed by bioelectrical impedance, cardiorespiratory fitness was evaluated using the Rockport Fitness Walking Test and health behaviour was assessed by questionnaire method. Student's t-test for independent samples, the U Mann Whitney test or chi-square test were used in data analysis.Results: RHE students had higher values of percentage muscle mass (p<0.05) and of cardiorespiratory performance (p<0.001), they also declared significantly more frequently (p<0.001) practicing leisure physical activity as compared with the STT group. However, in both groups the symptoms of unhealthy behaviour were observed.Conclusions: Although beneficial effects of augmented physical activity on body composition, cardiorespiratory performance and attitudes towards taking up leisure-time activity was noted, attention should be paid to symptoms of unhealthy behaviour observed in female students. This support the need for including obligatory physical education classes in university curriculum and the importance of education and promotion of healthy behaviour among the students.
EN
Study aim: To assess the relations between anthropometric and cardio-respiratory indices, and aerobic capacity of students, differing in the level of physical activity, under resting and exercise conditions.Material and methods: A group of 87 male and 75 female students volunteered to participate in the study. Their physical activity was evaluated by Seven-Day Physical Activity Recall questionnaire. Anthropometric (body height and mass, body fat content, BMI and WHR) and physiological indices (heart rate, blood pressure, O2max, CO2 and minute ventilation) were recorded. Body fat content was determined using a BIA device; respiratory data were recorded in a cycle ergometer test. The subjects were classified by their O2max values into ‘high’ or ‘low’ categories, the cut-off values of lower and upper quartiles serving as criteria.Results: Male and female students expended 10.2 ± 4.6 and 8.4 ± 5.3 kcal/kg/day, respectively, the O2max amounting to 48.4 ± 6.4 and 41.1 ± 4.7 ml/kg/min, respectively. Subjects having high O2max had significantly higher energy expenditure on physical activities, fat-free mass, body water content and maximal ventilation, and lower body mass, BMI, body fat content, resting heart rate and diastolic pressure.Conclusions: When investigating into the relationships between physical activity and physiological features, the latter ought to be related to O2max rather than to energy expenditure which may depend on other than physiological variables.
EN
Study aim: To compare the effects of caffeine on metabolic and cardiovascular responses to exercise in lean and obese subjects.Material and methods: In a double blind random design, 6 lean (BMI<20) and 6 obese (BMI>28) sedentary young men performed treadmill running for 30 min at similar exercise intensities (60% VO2max) one hour after caffeine (5 mg/kg body mass) or placebo ingestion. Gas exchange was measured by indirect calorimetry/open-circuit spirometry. Heart rate (HR) was measured throughout the exercise. Blood pressure (BP) measurements were taken at baseline, 1 h after caffeine/placebo ingestion and immediately after exercise. Repeated measures ANOVA was used in data analysis.Results: Caffeine significantly (p<0.05 - 0.01) increased the exercise-induced oxygen uptake, energy expenditure, systolic blood pressure and heart rate in both groups, the respiratory exchange ratio remaining unchanged. The effects of caffeine were in both groups alike.Conclusions: Caffeine activates metabolism without inducing major changes in fat/carbohydrate oxidation. The differences in body fat content seem not to affect the caffeine-induced effects in a submaximal exercise.
EN
Omega-3 (n-3) fatty acids, and the long-chain n-3 derivatives eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in particular, have been extensively researched for their nutritive effects. Among their many purported benefits, n-3 acids have been implicated as positive mediators of cardiovascular health and body composition. It has therefore been speculated that supplementation may enhance the beneficial effects of physical activity, potentiating greater reductions in body fat and improvements in exercise performance. This paper has three objectives: first, to assess the theoretical basis for a synergistic ef-fect when n-3 supplementation is combined with exercise; second, to review the literature as to specific findings on the subject and third, to make relevant conclusions and recommendations for future research.
EN
Morbidity of obesity-related diseases tends to increase due to a rise in the body mass index (BMI). We aimed to investigate how the body composition and biochemical parameters change while BMI increases in adult women were categorized as so: as normal weight, overweight and obese. Our objectives are to study the effects of those changes in the development of metabolic disturbances and to find out which parameters are the most sensitive to predict cardiometabolic risks. Three hundred and twenty two records of adult women (mean age: 38.62±12.71 year) who admitted to our unit concerning about losing or preserving their weights, were analyzed in the study. All patients had undergone anthropometric measurements and body composition analyses as well as some biochemical tests. Body composition analyses were performed by means of the Bioelectrical Impedance Analyzer (BIA). Increase in BMI significantly increased the body fat, blood sugar, insulin, triglyceride and uric acid levels. BMI and circumference of the waist were significantly and negatively correlated with the ratio of body water and lean mass/fat mass. However they were positively correlated with the ratio of fat mass and basal metabolism. Furthermore, it was also found that BMI and circumference of the waist were significantly and positively correlated with level of fasting blood sugar, insulin, triglyceride, homeostasis model assessment insulin resistance (HOMA-IR), uric acid and fibrinogen levels, and negatively correlated with high density lipoprotein (HDL) cholesterol level. In multiple regression analyses, circumference of waist measurements was significantly correlated with insulin, triglyseride and HDL, whereas the correlation between BMI and these parameters was not found significant. Total body fat mass (as %) showed significant correlation only with HDL-C level. It could be said that obesity which is a disorder that causes many health complications and affects the quality of life in the short and long term could be prevented or cured by keeping negative environmental conditions under control. According to our results, visceral adipose tissue (VAT) measurement was thought to be more related for metabolic and cardiovascular disorders rather than BMI. We also propose to test fasting blood glucose, insulin, triglyceride, HDL, fibrinogen, homocystein (HOM) levels along with VAT measurements to predict more truly about not only global cardiometabolic risk but also dementia in later life.
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The aim was to evaluate vitamin D levels in young healthy Lithuanian males in winter and to find possible associations of vitamin D concentration to body composition, cognitive functioning, emotional state. Subjects and Methods A total of 130 healthy males (age range, 18–26 years) were divided into the subgroups according to vitamin D concentration. The Profile of Mood States (POMS) questionnaire and Hospital Anxiety and Depression Scale were employed in the assessment of emotional state. Cognitive functioning was assessed by the Trail Making Test and the Digit Symbol Test of the Wechsler Adult Intelligence Scale. Results The mean concentration of vitamin D for the entire sample was 13.0±5.3 ng/ml. Only 2 persons (1.6%) had the recommended vitamin D level. Nearly half (45.4%) of study participants had vitamin D deficiency. Lower concentrations were associated with a significantly higher score on the POMS confusion-bewilderment scale. A tendency toward a lower mean depression-dejection score in the participants with a sufficient vitamin D level was observed. Vitamin D concentration correlated positively with body mass index (BMI) and inversely with the confusion-bewilderment score. In conclusion almost half of the young healthy males participating in the study were detected to have vitamin D deficiency in winter. Low vitamin D concentrations are associated with a worse emotional state.
EN
The purpose of the present study was to compare chosen physical fitness characteristics of Turkish professional basketball players in different divisions (first and second division) and playing positions. Forty-five professional male basketball players (14 guards, 15 forwards, 16 centers) participated in this study voluntarily. For each player, anthropometric measurements were performed, as well as a multi-stage 20 m shuttle run, isokinetic leg strength, squat jump (SJ), countermovement jump (CMJ), 10-30 meter single-sprint and T-drill agility tests. The differences in terms of division were evaluated by independent t-test and the differences by playing position were evaluated by one-way ANOVA with Post Hoc Tukey test. First division players' CMJ measurements were significantly higher than those of second division players' (p≤0.05), whereas second division players' 10 m sprint times were significantly better than those of first division players' (p≤0.05). In addition, forwards and centers were significantly taller than guards. Centers were significantly heavier and their T-drill test performances were inferior to those of forwards and guards (p≤0.05). Moreover, guards had a significantly higher maximal oxygen uptake (VO2 max) than centers. Guards and forwards showed significantly better performance in the 10 and 30 m sprint tests than centers (p≤0.05). Forwards and centers had significantly better left leg flexor strength at 180°.s-1(p≤0.05). In conclusion, the findings of the present study indicated that physical performance of professional basketball players differed among guards, forwards and centers, whereas there were not significant differences between first and second division players. According to the present study, court positions have different demands and physical attributes which are specific to each playing position in professional basketball players. Therefore, these results suggest that coaches should tailor fitness programs according to specific positions on the court.
EN
Study aim: running economy (RE) is important indicator of endurance performance. During puberty dynamic changes in body composition and function are observed, as such RE is also expected to change. The aim of the study was to compare the running economy (RE) in overweight and normoweight boys during a running exercise performed with constant velocity, and the assessment of changes in RE during puberty. Material and methods: the RE of the subjects was evaluated twice: at the age of 11–12 and two years later. 18 overweight and 17 normal weight boys performed a graded test and a week later a submaximal run on a mechanical treadmill. During the exercise, physiological variables (oxygen uptake, heart rate, pulmonary ventilation, tidal volume and breathing frequency) were measured. Results: the intensity of work in both tests (%VO2max, %HRmax) was significantly higher in the overweight boys and decreased with age (non significantly) in both groups. The physiological response during the run in the overweight boys was significantly higher compared to normal weight. When the oxygen uptake was expressed as VO2.BM–0.75, the RE was similar in normal weight and overweight boys. During puberty, the inter-group differences in the metabolic cost of work stay at a relatively stable level. Conclusions: the lowered endurance performance in the overweight boys during puberty remains unchanged. The changes in physiological variables during puberty in both groups occurred in a similar way – the body composition did not influence the course of these changes in puberty.
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