firefighting is extremely strenuous and physically demanding work and involves ability to cope with emergency life-or-death situations. because of the high physical demands of firefighting, successful job performance and minimizing of morbidity and mortality depends on fitness for duty. the firefighting department of tehran does not perform periodic medical assessment for firefighters. the aim ...

the aim of this study was to evaluate standard and safety indexes in tehran fitness gyms. the population consisted of state and private fitness clubs in tehran.  5 regions of tehran city were selected by cluster sampling method; then, 20 clubs from each region were selected by on non-random convenience sampling method, so a total of 100 fitness clubs were assessed. the aim of this study was app...

background chronological aging is associated with a decrease in physical activity levels and consequently a decline in physical fitness, which may contribute to adverse conditions such as cardiovascular disease, hypertension, obesity and physical impairment. objectives this study sought to examine the effects of an 8-week physical activity intervention program on nutritional status and health-r...

introduction: the aim of this study was to explore the relationship between genu varum abnormality and the performance and strength of lower extremity in teenage footballers. materials and methods: 60 young male football players with the mean age of 15.2± 0.78 yr, mean weight of 58.9 ± 3.39 kg and mean height of 166.6.21 cm participated in this study. kendall’s method and plumb line were used t...

background : adiposity is correlated with metabolic complications, such as insulin resistance, glucose intolerance, hypertension etc. that finally can lead to coronary heart disease (chd). physical activity plays an important role in prevention of these diseases. we aimed to study body fat and plasma lipids and lipoproteins in different levels of physical fitness; also to examine any relationsh...

Human health is highly dependent on the condition of health-related physical fitness and particularly body composition. Adolescence is unique in this regard, especially when the adolescents are mentally retarded, about whom information on physical fitness is limited. Thus, the objective of this paper was to study the components of health-related physical fitness with emphasis on body composit...

background & aim: maintaining and improving the work ability are important social goals, which challenge the health care and rehabilitation systems as well as health providers. the physical and mental health status affect the work ability. regarding this, the current study aimed to investigate the effect of aerobic training on the work ability of the midwives in the health care centers of mashh...