Comparison of selected prooxidant-antioxidant balance and bone metabolism indicators and BDNF levels between older women with different levels of physical activity.

BACKGROUND: Given a lack of studies precisely indicating how many steps elderly people should take daily for their antioxidant defence, bone metabolism, and cognitive abilities to improve, our study set out to compare the selected antioxidant, prooxidant, bone turnover, and BDNF indicators between elderly women differing in physical activity (PA) measured by the daily number of steps. METHODS: The PA levels of 62 women aged 72.1 ± 5.4 years were assessed based on their daily number of steps and then were used to allocate the participants to three groups: group I (n = 18; <5,000 steps a day); group II (n = 22; from 5,000 to 9,999 steps a day); and group III (n = 22; ≥10,000 steps a day). Blood samples were collected from the participants in early morning hours and subjected to biochemical analysis for prooxidant-antioxidant balance indicators (SOD, CAT, GPx, GR, GSH, UA, MDA and TOS/TOC), bone metabolism indicators (Ca, 25-OH vitamin D, osteocalcin, CTX-I, and PTH), and BDNF levels. RESULTS: The groups were not statistically significantly different in the activity of SOD, CAT, GPx, and GR, but their concentrations of GSH (H = 22.10, p < 0.001) and UA (H = 12.20, p = 0.002) proved to be significantly associated with the groups' daily PA. The between-group differences in the concentrations of MDA and TOS/TOC were not significant, with both these indicators tending to take higher values in group I than in groups II and III. Significant differences between the groups were established for the concentrations of 25-OH vitamin D (H = 24.21, p < 0.001), osteocalcin (H = 7.88, p = 0.019), CTX-I (H = 12.91, p = 0.002), and BDNF (H = 14.47, p = 0.001), but not for Ca and PTH. CONCLUSIONS: Significantly higher concentrations of GSH, slightly lower oxidative stress indicators, significantly higher BDNF levels, and moderately better bone turnover indicators and resorption markers in the group taking more than 5,000 steps a day suggest that this level of PA can promote successful aging. More research is, however, needed to confirm this finding.

Socio-economic correlates of quality of life in single and married urban individuals: a Polish case study.

BACKGROUND: One of key current social trends is the increasing number of single people. It has multiple implications as single individuals often live and behave differently than those living in relationships. Marital status and socioeconomic status may also be significant quality of life factors for single persons. The aim of this study is to identify relationships between quality of life and selected indicators of socioeconomic status in single and married respondents from the Wroclaw metropolitan area in Poland. METHODS: 4460 respondents took part in the study (1828 single, 2632 married). The study was cross-sectional based on a diagnostic survey. Data was gathered on respondents' sex, age, education, marital status, occupational status and financial situation as well as their quality of life and perceived health condition. Frequencies (f) and relative frequencies (rf) of categories of dependent and independent variables were determined. The chi-squared test (χ2) and odds ratio (OR) statistics were applied. The level of statistical significance was set at α = .05. RESULTS: A stochastic dependence (p ≤ .05) between marital status and perceived health condition and quality of life in the social domain was found among the respondents. Male sex, higher education, being an entrepreneur, college student or white-collar worker, and good financial status were associated with the highest assessments of quality of life and perceived health condition. The directions of quality of life modifications determined by socioeconomic status were similar in single and married urban respondents; however, the strength of these modifications was greater in the latter. CONCLUSIONS: It is recommended to target respondents with public health programs aimed at lifestyle improvement, tailored to the needs of single and married individuals. Public policies directed at improving education and material situation of respondents are also worth considering, as they may be essential for modeling their quality of life. In addition, research on quality of life should be continued, which is particularly relevant in a pandemic situation.

Physical activity of Katowice urban area inhabitants with regard to selected physical traits and social factors

Background: Modern research of health determinants and health-related behavior patterns places a particular emphasis on the assessment of physical activity levels in various social and professional groups. The deficit of physical activity has become a common cause of serious diseases. Following the ecological model of health behavior, physical activity as a biological and cultural phenomenon can be indirectly modified by such interpersonal factors as age, sex, somatic traits and education. Objectives: The aim of the present study was the identification and assessment of habitual physical activity of adult inhabitants from the Katowice Urban Area with regard to selected physical traits and social determinants. Material and methods: The study was carried out in the Katowice Urban Area in May and June, 2012-2014. The research material comprised 2,173 inhabitants, including 1,017 women and 1,156 men, aged 30 to 65 years. The respondents' habitual physical activity was assessed with the use of the International Physical Activity Questionnaire - Short Version (IPAQ-SF). The obtained data on the respondents' physical activity were compared with the American College of Sports Medicine (ACSM) recommendations Results: The results of the study showed that the frequency and duration of high-intensity physical activity and duration of moderate-intensity physical activity were significantly greater in the male inhabitants. The age was also a significant factor affecting the levels of high-intensity physical activity in men. Body build was not a significant determinant of the frequency and duration of physical activity in both men and women from Katowice. The education level only affected the level of physical activity in men. Sex, age, and education of the respondents were statistically significant determinants of their level of fulfilment of the ACSM recommendations. Conclusions: Propagation of physical activity among adults and the elderly, and women in particular, remains a continuing challenge facing health promotion professionals.

Recommendations for health-enhancing physical activities in type 2 diabetes patients.

[Purpose] Type 2 diabetes mellitus is a disease of civilization with epidemiological coverage. An integral component of a comprehensive process of type 2 diabetes mellitus prevention and treatment is reasonably proportioned exercise. The aim of the study was to evaluate the weekly physical activity of patients with type 2 diabetes mellitus and healthy subjects with respect to recommendations of the American College of Sports Medicine and American Diabetes Association. [Subjects] The study involved 31 patients with type 2 diabetes mellitus (treatment duration 9 ± 0.8) and 31 healthy people. [Methods] Physical activity levels were determined by the International Physical Activity Questionnaire. A χ(2) test was applied to determine the percentage of people who met recommendations. [Results] Analysis of the obtained results demonstrated that the intensity of physical activity in patients with diabetes was moderate or low. The men in the control group met the recommendations for standard health-related activities significantly more often than the patients with diabetes. In women, there was no such relationship, since most of the women were insufficiently physically active. [Conclusion] The conclusion to be drawn is that there is an urgent need to develop and implement effective programs to enhance physical activity among people at risk of diseases of civilization, including type 2 diabetes.

[Physical activity of adult residents of Katowice and selected determinants of their occupational status and socio-economic characteristics]. / Aktywnosc fizyczna doroslych mieszkanców Katowic a wybrane uwarunkowania zawodowe i spoleczno-ekonomiczne.

BACKGROUND: The issue of physical activity (PA) is often addressed in the literature, but its socio-economic determinants are fully recognized. To date no studies of the adult population of Katowice have been carried out. Research in this area is of great importance in the context of the documented influence of PA on health and extension of retirement age in Poland. The aim of this paper is to evaluate the relationship between PA and socio-economic status of adult residents of Katowice. MATERIALS AND METHODS: The study carried out in 2010 comprised 2053 people (987 women and 1066 men) aged 30-65 years. To evaluate PA in the study group the diagnostic survey method and a research tool in the form of an abridged version of the International Physical Activity Questionnaire (IPAQ), with specification expanded by the authors, were used. In the statistical analysis logistic regression was employed. RESULTS: The likelihood of meeting the standards of health-enhancing PA was higher in men than in women and it decreased with age and education level of the respondents. The highest proportion of those meeting the recommendation of health-enhancing PA was observed among blue-collar workers, operators, teachers, police and soldiers. The lowest probability of meeting the recommendations of the American College of Sports Medicine was found among economists and lawyers, office workers, the unemployed, managers, and engineers, pensioners and health care professionals. CONCLUSIONS: The study demonstrates the correlation between PA and socio-economic status of the respondents. The analysis of the results indicates the necessity to promote PA programs mainly among women, the elderly, the unemployed, pensioners and representatives of professions, such as economists, lawyers, managers, engineers, and health professionals.

Correlations between physical activity and quality of life in entrepreneurs from Wroclaw, Poland.

BACKGROUND: Limited physical activity is one of the main reasons for the rapid increase in the prevalence of diseases of affluence, which can lead to premature deaths in adults. Quality of life may be one of potential determinants of physical activity. The aim of this article is to identify the relationships between physical activity and quality of life in entrepreneurs from Wroclaw, Poland. METHODS: A cross-sectional study was conducted on a group of 616 entrepreneurs (216 women and 400 men). A diagnostic survey method was used with a direct interview technique. The research tools included the International Physical Activity Questionnaire Short Form and the World Health Organization Quality of Life Questionnaire. RESULTS: Among the studied entrepreneurs, along with their higher ratings of overall quality of life, the odds of high rather than low levels of physical activity increased nearly fivefold (OR 4.86, CI 3.34-7.07). Entrepreneurs with higher assessment levels of their perceived health condition were nearly twice as likely to report high rather than low physical activity levels (OR 1.92, CI 1.42-2.59). The conditional probability of high rather than low levels of physical activity also increased in the entrepreneurs with higher assessments of quality of life in the physical, psychological, social, and environmental domains, by 34%, 11%, 5%, and 6%, respectively. CONCLUSION: Programs promoting physical activity among entrepreneurs, which focus on moderate and high intensity exercise, should be considered desirable in the context of the study findings. Activities aimed at improving quality of life in the physical and psychological domains as a potential determinant of the level of physical activity of entrepreneurs are also worth recommending.

Quality of life of low-income adults.

BACKGROUND: Quality of life is currently one of the basic conceptual categories in many research disciplines. The authors of the present study are convinced that measurement of quality of life in reference to people living on the poverty line deserves special attention. OBJECTIVE: The aim of the study was to identify relationships between the quality of life and sociodemographic variables in low-income Wroclaw residents. METHODS: The research was conducted in Wroclaw (Poland) and involved 1215 respondents aged 18-64 years, whose monthly gross income per capita in the household did not exceed 1043 PLN. The respondents' quality of life was assessed with the World Health Organization Quality of Life Questionnaire with additional questions on the respondents' social and demographic status. RESULTS: The Wroclaw residents most often assessed their quality of life as average or below average. They rated their health-related quality of life in the social domain as the highest, and in the physical domain as the lowest. Age, household size, stable source of income, savings, and indebtedness were significantly correlated with the quality of life of Wroclaw residents under study. Among the respondents, statistically significant relationships between perceived health condition assessment and age, professional status, stable source of income, and debt were also identified. CONCLUSIONS: The results of the study indicate that public health programs and other activities related to quality of life management should be directed to individuals and social groups particularly threatened by low quality of life, i.e., people living on the income poverty line.

Effect of 6-week curcumin supplementation on aerobic capacity, antioxidant status and sirtuin 3 level in middle-aged amateur long-distance runners.

BACKGROUND: The study was undertaken to evaluate the effect of 6-week supplementation with a daily dose of 2g of curcumin on VO2max and prooxidant/antioxidant homeostasis in middle-aged amateur long-distance runners during the preparatory period of the macrocycle. METHODS: Thirty runners were randomly assigned to a placebo group (PL) and a curcumin-supplemented group (CU). Their VO2max was assessed before supplementation and after 6 weeks of supplementation. Venous blood samples were collected from the participants at rest, immediately after exercise, and after 1h of recovery to evaluate the activity of antioxidant enzymes (SOD, CAT, GPx), non-enzymatic antioxidants (GSH, UA) and sirtuin 3 level (SIRT 3), as well as the levels of oxidative stress markers (TOS/TOC, MDA, and 8-OHdG) and muscle damage markers (CK, LDH, and Mb). RESULTS: VO2max, the activity of enzymatic antioxidants, the concentrations of non-enzymatic antioxidants, the levels of oxidative stress markers, and the levels of muscle damage markers did not change significantly in the CU group over 6 weeks of supplementation with curcumin. However, the resting concentration of SIRT 3 was found to be significantly higher (p ≤ 0.05) compared with pre-supplementation. CONCLUSION: Curcumin supplementation does not have a significant effect on VO2max and prooxidant/antioxidant homeostasis in runners.

Is the Prevalence of Low Physical Activity among Teachers Associated with Depression, Anxiety, and Stress?

The aim of this study was to analyze the levels of stress, depression, and anxiety among Polish secondary school teachers and their association with selected psychosocial, sociodemographic, and lifestyle factors. A cross-sectional study was conducted among 116 Polish teachers in 2019, using the International Physical Activity Questionnaire-Short Form (IPAQ-SF), the Depression and Anxiety Stress Scale (DASS-21), and author questionnaire including psychosocial factors specific to the respondents' work environment. The prevalence of moderately to extremely severe levels of depression, anxiety, and symptoms of stress in teachers was 18.1%, 22.4%, and 51.7%, respectively. Among respondents with moderate or high physical activity level (PAL), normal or mild levels of depression (OR = 3.62; CI [1.31-10.03]), anxiety (OR = 2.61; CI [1.01-6.73]), and stress (OR = 2.79; CI [1.16-6.69]) were more common. The level of individual symptoms of mental disorders was higher than indicated by previous Polish reports. Given that teachers' low PAL is significantly related to their moderately to extremely severe levels of stress, depression, and anxiety, we suggest running leisure-time physical activity (LTPA) enhancement programs and supporting the leadership of school management and the higher-education system in this regard.

The effect of calorie restriction on the anthropometric parameters, HOMA-IR index, and lipid profile of female office workers with overweight and obesity: a preliminary study.

OBJECTIVES: This study evaluates the effect of a 3-month calorie restriction (CR) without snacking on the anthropometric parameters, Homeostatic Model Assesment of Insulin Resistance (HOMA-IR), and lipid profiles of female office workers with overweight or obesity, whose physical activity was limited during the COVID-19 pandemic lockdown. MATERIAL AND METHODS: Forty-eight women aged 20-38 years (28.9±5.24) with low physical activity levels were divided into a non-snacking (NS) group (N = 21) and a snacking (S) group (N = 27) prior to the dietary intervention. Their daily energy intake during the intervention was lowered by 30% compared with the baseline level, and the proportion of polyunsaturated fatty acids and fiber in their diet was increased (to >30 g/day). The proportion of saturated fatty acids and simple carbohydrates was also reduced. The study participants were assessed at the baseline and post-intervention for anthropometric variables (body weight, body fat percentage BMI, waist circumference, hip circumference, waist-to-hip ratio) and the concentrations of insulin, total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C). Moreover, the values for HOMA-IR, the atherogenic index of plasma (AIP), and the ratios of TC/HDL-C, TG/HDL-C, and LDL-C/HDL-C were calculated. RESULTS: All anthropometric parameter values obtained post-intervention were lower than the baseline in both groups. The serum insulin concentration and HOMA-IR decreased respectively by an average of 6% and 25% in the NS group and 37% and 45% in the S group. The lipid profiles of all participants improved significantly, with the LDL-C concentration showing a more promising trend in the S group (decrease by 27%) than in the NS group (17%). CONCLUSIONS: The study showed that CR improved the anthropometric parameters, HOMA-IR index, and lipid profiles of all participants. Int J Occup Med Environ Health. 2022;35(6):693-706.

Emotional Functioning in the Context of Health Behaviors During the COVID-19 Pandemic in Health Sciences Students: The Polish Case.

Purpose: The fear for health, uncertainty, loss of freedom, boredom, and frustration accompanying the COVID-19 pandemic caused mental health burdens. Young people are particularly at a risk of emotional functioning problems. The aim of this manuscript was to verify the relationships between health behaviors and emotional functioning in health sciences students during the third wave of the COVID-19 pandemic in Poland. Patients and Methods: The study group comprised 493 Polish health sciences students (314 women, 179 men) aged 21.5 ± 2.25 years. The intensity of health behaviors was examined using the Health Behavior Inventory (HBI). The Hospital Anxiety and Depression Scale (HADS) was carried out to assess symptoms of anxiety and depression. Stress levels were examined with the Perceived Stress Scale (PSS-10). The online versions of psychological scales were created using Google Forms software. Results: Mild anxiety symptoms were observed in 21% of examined students and moderate-to-severe in 28%. Mild depressive symptoms were observed in 14% of the study group, and 8% of the examined students suffered from moderate-to-severe depression. The mean perceived stress result was high (22.2 ± 4.1 pts.). The overall intensity of health behavior was, at the mean level, significantly higher in females compared to males. The odds of developing severe symptoms in terms of anxiety, depression, and stress in students with high levels of health-related behaviors were respectively: four times, more than seven times, and nine times lower compared to students with lower levels of these behaviors. Conclusion: Undertaking regular pro-health behavior decreased the odds of developing severe symptoms of anxiety, depression, and stress in health sciences students during the COVID-19 pandemic.

Physical activity and socio-economic status of single and married urban adults: a cross-sectional study.

BACKGROUND: Changing family models have resulted in a large increase in the number of single-person households. This phenomenon has certain implications for society and the economy as single people often exhibit different behaviours, including their engagement in health-related physical activity, than those who are married and living with partners. However, the results of studies on determinants of physical activity in people of different marital status have been inconclusive. The aim of this study was to identify associations between physical activity and socioeconomic status in single and married urban adults. METHODS: The study material consisted of 4,460 persons (1,828 single and 2,632 married and living with partners). A cross-sectional study was conducted in Wroclaw (Poland). A diagnostic survey-direct interview method was used. Two research tools were applied: the International Physical Activity Questionnaire Short Form (IPAQ-SF) and the Socioeconomic Status Questionnaire (S-ESQ). The level of respondents' physical activity was assessed following WHO recommendations. The descriptive statistics included the number and frequency of categories of dependent and independent variables as well as measures of association between them, i.e., crude and adjusted odds ratios. RESULTS: The odds ratio of meeting the WHO physical activity recommendations was almost 70% higher in single than in married respondents (OR = 1.67; CI [1.46-2.19]), and slightly more than 40% higher after adjusting for sex, age and education (aOR = 1.42; CI [1.21-1.67]). In both groups socioeconomic the respondents' status revealed a significant and slightly different association with their levels of physical activity. Occupational status and financial savings significantly affected the level of physical activity in single respondents, while net disposable income was a significant modifier of physical activity levels in respondents who were married or lived with their partners. CONCLUSIONS: Assessment of the levels and determinants of physical activity among people of different marital status should be continued and extended to other subpopulations. This will allow effective preventive and therapeutic measures to be taken for groups most at risk of hypokinesia. Programs aimed at improving physical activity accounting for the socioeconomic status and marital status of their beneficiaries are particularly important.

The Dark Triad of Personality in the Context of Health Behaviors: Ally or Enemy?

The main aim of this manuscript was to present a preliminary verification of the relations between the Dark Triad of personality traits and health-oriented behaviors in university students. The study involved 143 healthy students (94 female and 49 male) from the Silesian Voivodeship (Poland). The diagnosis of the elements of the Dark Triad of personality was carried out using a psychological examination based on the following tests: TriPM-41, Mach IV, NPI. The intensity of the health behaviors was examined using the Health Behavior Inventory developed by Z. Juczynski. The Health Behavior Inventory is positively correlated with narcissism and its self-sufficiency component and negatively with psychopathic disinhibition. For the Health Behavior Inventory's subscales, a positive relationship was observed between Positive Mental Attitude and narcissism, most of its components, and psychopathic boldness. The analysis of correlations with the division of the subjects into the Dark Triad traits ≤Me and >Me revealed that a significant positive correlation between the general intensity of the health behaviors and the intensity of narcissism mainly concerns university students with a lower level of this trait and its components. Therefore, it can be presumed that narcissism, although considered as a socially aversive trait, is associated with pro-health behaviors.

Socioeconomic Determinants of Health-Related Quality of Life of Entrepreneurs. A Cross-Sectional Study.

BACKGROUND: Quality of life is one of the most important conceptual categories in many scientific fields and socio-economic practices. In the authors' opinion, the assessment of the overall quality of life and the health-related quality of life of private entrepreneurs deserves particular attention. Until now, quality of life and its determinants in entrepreneurs have been investigated by few authors. The aim of this study was to identify and assess the key determinants of quality of life and its health-related aspects in entrepreneurs from Wroclaw, Poland. METHODS: A questionnaire survey was carried out in a group of 616 entrepreneurs selected from among 4332 individuals (2276 women, 2056 men) who had participated in a study on the socioeconomic determinants of quality of life and physical activity of Wroclaw residents of working age. The main research method was a diagnostic survey using S-ES and WHOQOL BREF questionnaires. Information was obtained on respondents' quality of life and perceived health condition, as well as sex, age, education, marital status, number of people in the household, income per capita, savings, and indebtedness. The collected data were subjected to statistical analysis using numerical distribution, medians, and quartile deviation. Crude and adjusted odds ratios were used to assess relationships between entrepreneurs' quality of life and socioeconomic status. RESULTS: Over 66% of Wroclaw entrepreneurs rated their overall quality of life as average or above average and about 34% as below average. An average or above assessment of perceived health condition was provided by 71% of respondents, and below average by 29% of respondents. Health-related quality of life was assessed as average or above average in the environmental domain by 79%, physical domain by 77%, social domain by 65%, and psychological domain by 58% of the entrepreneurs. Among the respondents significant correlations were found between quality of life and perceived health condition; family status, i.e., marital status; number of persons in the household; and financial status, i.e., per capita income, savings, and debt. CONCLUSIONS: The results of this study can be used for managing the quality of life of entrepreneurs. Quality of life determinants should be constantly updated, as they may change along with further economic development and Poland's economic convergence with better developed EU countries.

Strenuous 12-h run elevates circulating biomarkers of oxidative stress, inflammation and intestinal permeability in middle-aged amateur runners: A preliminary study.

Given the solid evidence that prolonged strenuous exercise is a cause of metabolic stress, this study sought to determine whether a 12-h run would affect total oxidant status (TOS), total oxidant capacity (TOC), total antioxidant status (TAS), high-sensitivity C-reactive protein (hs-CRP) and the biomarkers of intestinal permeability (protein fatty acid-binding proteins (I-FABP) and zonulin) in middle-aged male subjects. Ten amateur long-distance runners (aged 52.0 ± 6.2 years, body height 176.9 ± 4.9 cm, body mass 73.9 ± 6.0 kg) were enrolled in the study. The venous blood samples were collected 1 hour before and right after the run and were analyzed for the levels of TAS, TOS/TOC, hs-CRP, I-FABP and zonulin. The post-run concentrations of TOS/TOC were significantly elevated (p < 0.001), but TAS changes were not significant. Pearson's correlation coefficients calculated for the post run values of TAS and TOS/TOC were statistically significant and negative (r = -0.750, p < 0.05). Significant increases in the concentrations of hs-CRP (p < 0.001), I-FABP (p < 0.05) and zonulin (p < 0.01) were noted. The results indicate that a strenuous 12-h run disturbs the prooxidant-antioxidant balance in middle-aged men, as well as promoting inflammation and impairing intestinal permeability.

Demographic and Socioeconomic Determinants of Body Mass Index in People of Working Age.

Obesity is currently the most common metabolic disease, causing numerous health problems and, if untreated, leading to premature mortality. Obesity is a significant issue among people of working age since their ability to work depends directly on their health condition and psychomotor fitness. Demographic and socioeconomic factors have a significant impact on the body weight of people of working age. The aim of this study is to identify relationships between the body mass index and selected demographic and socioeconomic variables in working-age residents of the city of Wroclaw, Poland. The study involved 4315 respondents (2206 women and 2109 men) aged 18-64 years from Wroclaw. The sample selection was random and purposive, using multilevel stratification. The applied research tool was the authors' own cross-sectional diagnostic questionnaire of socioeconomic status. Based on the collected data, the respondents' body weight was categorized according to WHO criteria. The majority of respondents (60%) had a normal body weight, while 40% were categorized as overweight or obese. The difference was statistically significant (p < 0.001). Sex, age, occupational status, marital status, number of people in the household, having a steady source of income, disposable (net) income, and savings were significantly correlated (p < 0.001) with respondents' body mass index. Public health programs aimed at promoting healthy lifestyle behaviors should be addressed primarily to groups at the highest risk of overweight and obesity.

Effect of 12-Week Interventions Involving Nordic Walking Exercise and a Modified Diet on the Anthropometric Parameters and Blood Lipid Profiles in Overweight and Obese Ex-Coal Miners.

BACKGROUND: Overweight and obesity after retirement are likely to be caused by unhealthy eating habits and the energy intake exceeding the energy expenditure. OBJECTIVES: This study was designed to assess the effects of two 12-week interventions involving, respectively, either regular physical activity or a modified lower-calorie diet on the anthropometric parameters and blood lipid profiles in overweight and obese retired miners with lipid disorders. DESIGN: The study participants (n = 30, aged 58.7 ± 4.1 years, body height 174.8 ± 7.3 cm, body weight 96.6 ± 13.9 kg) were randomly assigned to 2 intervention groups: the Nordic walking group (NW), which exercised with intensity from 60 to 70% of participants' maximal heart rates for 1 h 3 times a week, and the modified diet group (MD). Modification of the diet consisted of reducing the daily energy intake by 30%, increasing the dietary content of mono- and polyunsaturated fatty acids and dietary fiber, and reducing the proportion of saturated fatty acids. The variables assessed at baseline and after 6 and 12 weeks were: anthropometric parameters (body weight, fat mass content [FM], fat percentage [BF], BMI, waist circumference [WC], hip circumference [HC], and waist-to-hip ratio [WHR]) and blood lipid indicators (total cholesterol [TC], triglycerides [TG], low density lipoprotein cholesterol [LDL-C], and high density lip-oprotein cholesterol [HDL-C]). RESULTS: The body weight of the participants in the NW was lower at week 12 by an average of 5 kg, BMI by 6%, FB by 19%, FM by 15%, WC by 8%, HC by 6%, and WHR by 3%. In the MD, the respective decreases were 8 kg and 8, 25, 20, 6, 2, and 7%. In the MD, the postintervention concentrations of TC and TG were within the reference range. CONCLUSION: Both 12-week interventions improved the anthropometric parameters and blood lipid profiles of retired heavy manual workers, with the improvements being more pronounced in the dieting group.

Physical Activity as a Determinant of Quality of Life in Working-Age People in Wroclaw, Poland.

Regular physical activity can greatly contribute to the improvement of physical fitness and performance, reduction of the incidence risk of some occupational diseases, and as a consequence, to a general improvement of quality of life in terms of health status. The aim of the article was to assess relationships between the quality of life and physical activity of a working-age population. The study material comprised 4460 residents of the city of Wroclaw, Poland (2129 men, 2331 women) aged 18-64 years. The study was a questionnaire survey using the International Physical Activity Questionnaire Short Form (IPAQ-SF) and The World Health Organization Quality of Life (WHOQOL-BREF) questionnaires. The highest levels of overall quality of life and its four particular domains (physical, psychological, social, and environmental), as well as perceived health conditions were found among the most physically active respondents. Furthermore, the odds of high assessment of perceived overall quality of life were shown to increase with the increasing levels of physical activity. Activities aimed at the improvement of the quality of life of working-age people should involve programs enhancing the development of physical activity.

Physical Activity of Working-Age People in View of Their Income Status.

OBJECTIVE: The study examines relationships between physical activity levels and income status of working-age city residents. METHODS: The study was carried out in the years 2014 and 2015 in Wroclaw, Poland. The study sample comprised 4332 participants (2276 women; 2056 men) aged 18 to 64 years. Respondents' habitual physical activity levels were measured with the International Physical Activity Questionnaire Short Form (IPAQ-SF), while their income status was assessed with author's own Socio-Economic Status of Working-Age People Questionnaire (S-ESQ). RESULTS: The results revealed positive correlations between the level of physical activity and income status of male and female working-age residents of Wroclaw. The highest physical activity levels were noted among respondents with a steady income, as well as among respondents with the highest income and savings and with no debts. The odds for respondents' above average physical activity levels were the greatest in women with the highest income and with savings and in debt-free men and women. CONCLUSION: Effective actions should be developed aimed at improvement of physical activity levels of people in an adverse financial situation.