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Background. Physical activity is the primary factor in maintaining health and fitness. The minimal amount of physical activity per week is about 150 minutes of moderate activity. There are also many different motivation factors for activity, depending on various characteristics, for example, gender. The following article aims to prove how far gender can differentiate the motivation factor determining the amount of students’ physical activity. Material and methods. The study was carried out in 2016 in a group of 694 students of Warsaw University. The tool used to conduct the research was a proprietary questionnaire. Results. The study showed that there are distinct differences between women and men. Firstly, the study allows for stating that students demonstrate different attitudes towards recreational activity. The second important outcome shows that intrinsic motivation is stronger in female students, while extrinsic factors play an essential role in males. Conclusions. The obtained results on physical activity of students of Warsaw University remain partially in line with those found in other universities. Fitness improvement, weight reduction and well-being are the main motivation factors affecting the amount of physical activity. Another factor pointed out by students, and strongly emphasised by women, is taking care of own figure and physical condition. The element of pleasure concomitant with physical activity also becomes one of the most significant motivating factors for students of Warsaw University. Furthermore, male students are more likely to be driven by competition and selfexamination, while females are more into weight control.
Introduction. Nutrition is a factor influencing physical and mental fitness. In this study we examine the lifestyle of university students and its impact on nutritional errors. Objective. To evaluate the dietary behaviours of students taking into account gender and nutritional knowledge. Material and methods. Using a QEB questionnaire, we were able to evaluate dietary behaviours and nutritional knowledge of respondents. Our analysis was conducted on data obtained from 456 students. Results. We found that nutritional knowledge for women was 34.7% satisfactory and 34.7% good. In contrast, nutritional knowledge for men varied, amounting to 40.2% satisfactory and 25.1% good. The number of meals and their regular consumption did not depend on gender or the nutritional knowledge of students, however, significant differences were recorded for the types of snacks they eat. A greater number of women than men snacked on sweets and biscuits, nuts and seeds, while in the case of salty snacks an opposite trend was observed. A higher level of nutritional knowledge correlated with the number of students snacking on fruit and vegetables instead of salty snacks. Moreover, it was observed that healthpromoting behaviours such as not adding sugar to beverages and not adding salt to dishes were more common with women and individuals with a higher level of nutritional knowledge. Conclusions. Women more frequently snack on sweets, biscuits, nuts and seeds. More men snack on salty snacks, add sugar to beverages and add salt to dishes. Individuals with insufficient nutritional knowledge more frequently snack on salty snacks rather than fruit. Students with insufficient nutritional knowledge more often commit nutritional errors.
Basically, women’s empowerment is the process (and its outcomes) in which women – individually and collectively- become active, knowledgeable and goal-oriented actors who take and/ or support initiatives to overcoming gender inequalities. Hence, women’s empowerment refers to a strategy to achieve gender equality as well as to the inherent capacity building processes. Institutional capacity aimed at women’s empowerment is not a clearly defined concept. Yet, effective capacity building requires conceptual clarification and common understanding among institutional actors. Therefore the following questions need to be answered: what do I mean by institutional capacity? How can it be developed? More specifically, how can it contribute to rural women’s empowerment and gender equality?
Background. Monitoring energy intake in preschool children is the basis for planning intervention programmes. The published articles in which energy intake in Polish preschool children was reported are still very few. Objective. The objective was to assess energy intake in preschool children from Piła, including energy intake and intake of energy from macronutrients. Material and Methods. Energy intake was assessed from weighed food records kept over seven consecutive days by preschool staff and parents of 122 children, 61 girls and 61 boys, aged 4 to 6 years. Energy intake was calculated using Dieta 4.0 and Microsoft Excel computer programmes. Weight and height were measured and BMI was calculated. Statistical analysis was carried out using the IBM SPSS Statistics 21 computer programme. Results. Energy intake was the lowest in underweight children, 1286 kcal, and the highest in obese children, 1636 kcal. Energy intake (kcal, kJ, kcal/kg body weight, kJ/kg body weight) and intake of energy from sucrose (%) were statistically significantly higher in boys compared to girls, 1546 vs 1428 kcal, 6477 vs 5985 kJ, 77 vs 71 kcal/kg body weight, 322 vs 298 kJ/kg body weight, and 21.2 vs 19.7%, respectively. Intake of energy from starch was statistically significantly higher in girls compared to boys, 24.8 vs 23.4%. It is noteworthy that energy intakes from fat and saturated fatty acids were above the recommendations in 71.3% and 98.4% of the studied preschool children, respectively. Energy intakes from polyunsaturated fatty acids and available carbohydrates were below the recommendations in 98.4% and 57.4% of the studied preschool children, respectively. Conclusions. Energy intakes from macronutrients in the studied preschool children need urgent modification to prevent the risk of future diet-related diseases. Preschoolers’ parents and preschool staff should be educated about nutrition recommendations for children, especially about dietary risks of diseases and impaired neurodevelopment.
Skeletal muscle is a plastic tissue with known gender dimorphism, especially at the metabolic level. A proteomic comparison of male and female murine biceps brachii was undertaken, resolving an average of 600 protein spots of MW 15–150 kDa and pI 5–8. Twenty-six unique full-length proteins spanning 11 KOG groups demonstrated statistically significant (p<0.05) abundance differences between genders; the majority of these proteins have metabolic functions. Identified glycolytic enzymes demonstrated decreased abundance in females, while abundance differences in identified oxidative phosphorylation enzymes were specific to the proteins rather than to the functional group as a whole. Certain cytoskeletal and stress proteins showed specific expression differences, and all three phosphorylation states of creatine kinase showed significant decreased abundance in females. Expression differences were significant but many were subtle (≤ 2-fold), and known hormonally-regulated proteins were not identified. We conclude that while gender dimorphism is present in non-exercised murine skeletal muscle, the proteome comparison of male and female biceps brachii in exercise-naive mice indicates subtle differences rather than a large or obviously hormonal dimorphism.
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Sleep disordered breathing in the elderly: comparison of women and men

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The prevalence of obstructive sleep apnea syndrome in patients up to the age of 60 is known to be two times higher in men then in women. Hormonal changes during menopause might underlie changes in this relationship in the elderly. This study was designed to detect differences in the type and frequency of sleep-disordered breathing between women and men over the age of 65 years, having the same body mass index. The study was conducted using a matched-pair approach consisting of a sample population of 40 pairs of patients over the age of 65. All patients met the following exclusion criteria: age below 65, heart failure, chronic obstructive lung disease. Polygraphy was conducted by means of a portable recorder. All measured indices were higher in men than in women. The apnea index was 2.8 ±4.1 in men and 0.6 ±1.4 in women. The apnea/hypopnea index was 10.2 ±11.4 and 4.8 ±3.9, respectively. These differences were significant (P<0.05). Significant differences also were observed when central (men 8.1 ±13.1, women 3.1 ±8.2), mixed (men 5.1 ±11.4, women 0.4 ±1.3), and obstructive (women men 8.6 ±20.1, 1.0 ±4.3) apnea indices were compared. In conclusion, the study demonstrates that elderly patients showed gender-dependent differences in the type and frequency of sleep-related breathing disorders. Men suffered from all kinds of apnea more frequently than women.
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Potential confounding factors in measurement of exhaled nitric oxide

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Nitric oxide is present in the exhaled air. Factors affecting the level of exhaled nitric oxide (exNO), except for smoking, are not well defined. In this study we seek to determine whether age, gender, body mass index (BMI), part of the day, or time after a meal could modulate exNO levels. exNO was examined by the use of a chemiluminescence method in 100 subjects - 31 women (19 nonsmokers and 12 smokers) and 69 males (55 nonsmokers and 14 smokers). Forty four subjects took medications due to stable coronary disease, 22 were after heart transplantation, and 34 did not take any drugs. We found that exNO levels did not differ either between the whole groups of women and men or between smokers and nonsmokers of either respective group (4.91 ±2.38 vs. 6.27 ±4.23 ppb; 3.21 ±1.16 vs. 3.71 ±1.55 ppb; 5.98 ±2.35 vs. 6.92 ±4.45 ppb). The correlation of exNO with age in the whole population was weak (r=0.23; P=0.02) and insignificant in the smoking and nonsmoking subgroups. Likewise, correlations of exNO with BMI, part of the day, or time after a meal were insignificant in whole population as well as the subgroups. We conclude that the aforementioned factors are not able to confound the measurement of exNO in the population studied.
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The influence of age and gender on the latency of eye movement in healthy humans

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Standard measures of sleep recordings give differing results depending on the gender and they constantly change with age. Sleep latency increases, delta sleep decreases, and sleep tend to be shorter in duration and fragmented in middle-aged and elderly adults. The deterioration of sleep is observed earlier in men. In the 1980s, new measures called the Latency of Eye Movement (LEM) and the Mean Latency of Eye Movement (M-LEM) were proposed. Previous studies have shown that untreated patients with endogenous depression had the LEM and M-LEM shortened and that both indices get prolonged during treatment with antidepressants. On the other side, alcoholics in the abstinence period have LEM and M-LEM twice as long as healthy controls. In this study we set out to compare LEM and M-LEM in healthy humans according to the gender and age. The subjects of the study were 80 healthy volunteers: 40 males and 40 females, who were divided into 4 groups: females and males, below and above 40 years of age. In contrast to standard measures, our study did not reveal any significant changes of LEM or M-LEM due to the gender or age.
The aim of this paper was to find out how pulmonary arterial hypertension (PAH) affects heart rate in males and females rats. Additionally, the concentration of tumor necrosis factor alpha (TNF-alpha) was monitored. Male and female rats were treated by monocrotaline (i.p., 60mg/kg B.W.) or by equivalent volume of normal saline solution (n=40) and after 4 weeks right auriculae containing sinoatrial cells have been isolated and examined. We have measured heart rate of spontaneously beating right auriculae and serum level of TNF-alpha. In females with PAH, isoprenaline curve was shifted to the left (pD2 increased from 10,9±3 to 15±3, n=10, P<0,05), but in males with PAH maximal acceleration of beating rate induced by isoprenaline decreased from 175±10 to 146±8 beats/min, P<0.05). Additionally, reduction in heart rate induced by rilmakalim was more significantly decreased in females (from -89±7 to - 49±3 beats/min, n=10, p<0.01) than in males (from - 68±6 to - 46±4 beats/min, P<0.05) with PAH. We did not detect any changes in TNF-alpha in any experimental group. Our results imply that pulmonary hypertension increased sensitivity of sinoatrial cells to isoprenaline and decreased efficacy of rilmakalim to reduce heart rate more significantly in females then in males.
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