Biorhythm is one of the latest topics in the field of identifying mind’s ergonomics. Of all the performances with which biorhythm deals is the physical performance. The purpose of present research is to study the effect of physical cycle of biorhythm on the designated factors of physical fitness among teenage volleyball players in the city of Qom. In the present field research, 30 people were...

background : regular physical activity is important for midlife women. models and theories help better understanding this behavior among middle-aged women and better planning for change behavior in target group. this study aimed to investigate predictive factors of regular physical activity among middle-aged women based on precede model as a theoretical framework. methods : this descriptive-ana...

aim: regular physical activity has several physical, psychological and social benefits. however, it is a global health problem, especially among icu nurses. therefore, in order to improve nurses’ physical activity, it is required to determine the effective correlated factors. the aim of this study was to delineate predictive factors on the physical activity of icu nurses based on a trans-theore...

The aim of this research has been to help improve the performance evaluation of physical education teachers by identifying factors involved in such a task and exploring their relevance through a survey of such teachers in Tehran. A cluster sample of 384 physical education teachers was selected from among all such teachers in Tehran’s 19 districts divided into five geographic areas. Data was col...

introduction: hunger and reduction in regular energy intake can lead to a number of problems based on their intensity. for instance, low energy level can cause blood cell production to decline or it may pose a higher risk of anemia. it can also weaken the immune system and platelet aggregation or negatively affect clot formation. this study aimed to have a closer look at fasting and regular phy...