نتایج جستجو برای: athletes with low self
تعداد نتایج: 9730539 فیلتر نتایج به سال:
It usually occurs that in important matches, athletes often play abnormal of their sport technique as they are too concerned about the competition result, and this is called Choking phenomenon. How to explain and control this from the perspective of the present psychology has become a widely discussed hot issue in the field of sports psychology. By research on the occurrence conditions of athle...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...
Objectives: To examine the influence of perceptions of the motivational climate, self-efficacy, and perceived importance on athletes’ claimed situational self-handicaps in a competitive sport setting. Perceptions of a task involving climate and self-efficacy were expected to be negatively related and perceptions of an ego-involving climate to be positively related to situational self-handicappi...
Objective: The present research aimed to determine the prevalence and incidence rate of low back pain and injury in 12 Olympic sports athletes presenting to the injury surveillance system of the Sports Medicine Federation of Iran. Methods: A retrospective analysis was conducted on the data of athletes from the injury surveillance system of the Sports Medicine Federation of Iran, for three year...
Background: Cardiac connective tissue dysplasia syndrome consists of mitral valve prolapse (MVP), anomalously located chordae tendinae of the left ventricle, or a combination of the two. MVP is marked by the displacement of an abnormally thickened mitral valve leaflet into the left atrium during systole. The nonclassic form of MVP carries a low risk of complications. Patients with severe classi...
OBJECTIVES To explore the performance of retrospective health data collected from athletes before Athletics championships for the analysis of risk factors for in-competition injury and illness (I&I). METHODS For the 2013 European Athletics Indoor Championships, a self-report questionnaire (PHQ) was developed to record the health status of 127 athletes during the 4 weeks prior to the champions...
objectives: the aim of the present study was to compare and contrastthe sub-scale of the body image of the athletes and nonathlete menopaused females. methods & materials: the subjects of the research comprise 60 individuals who were between 43-53 years old. in this study the personalinformation questionnaire and psdq test were used.the personal information questionnaire included the sub-scales...
background: the most common drug abuse among athletes is anabolic steroids which lead to the development of cardiovascular diseases and sudden death. thus, the aim of this study was to evaluate cardiovascular outcomes of anabolic consumption in body building athletes. materials and methods: totally, 267 male athletes at the range of 20-45 years old with the regular consumption of anabolic stero...
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