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Janusz Jaworski and Eligiusz Madejski

Importance of Urban Factor and Selected Socio-Economic Variables in the Differentiation of Coordination Motor Abilities Level (CMA)

Introduction. The aim of this study was to investigate the effects of the urban factor and socio-economic status on selected coordination motor abilities of non-practicing physical education female students. Material and methods. The research covered 83 female students aged 20.6±0.8 SD years. Data on place of residence and socio-economic status of respondents were collected through a survey. The study of coordination motor abilities was carried out by a special computer application using for this purpose a "tablet" with touch screen. Assessment of the size, scope and direction of differentiation between the groups was made on the basis of standardized inter-group differences. Results. The inter-group differences were presented in the surveyed female students' coordination motor abilities, depending on the urban factor and socio-economic status. The gradient of these changes was as follows: the city over 25 thousand population > city of 25 thousand population > small town. The scale of differentiation was dependent on the type of tested abilities and the environmental factor. Conclusion. Gradient of observed changes could be caused by, e.g. more environmental stimuli stimulating the nervous system in the earlier periods of development of the female students from larger urban clusters and families with higher socio-economic status.

Open access

Janusz Jaworski, Grażyna Kosiba and Eligiusz Madejski

Abstract

Purpose. The objective of this study was to determine the level and rate of change of reaction time during the developmental period from early childhood to early adulthood. Polynomial regression analysis was applied to determine the age at which the best reaction time results are achieved. Methods. The study involved 550 females between the ages of 7 and 20 years. Participants completed a computer test measuring simple reaction times to visual and auditory stimuli and choice reaction time during the ontogenetic developmental period. Results. Analysis of the results for age group distinguished two sub-periods of reaction time dynamics: a progressive increase throughout the developmental period followed by a plateau phase. This was evident for all reaction time measures (simple and choice) particularly in the case of that data collected empirically. Conclusions. best reaction times to visual and auditory stimuli were approximately at the age of 17 years. In turn, quickest choice reaction time was approximately one year earlier in life. The most dynamic increase in the results of both simple reaction times was between the age of 7 and 8 years, whereas for choice reaction time this was between 10 and 11 years of age.

Open access

Janusz Jaworski, Eligiusz Madejski, Grażyna Kosiba and Sylwia Wiatr

Abstract

Introduction.The aim of the study was to determine the age, level of achieving maximum results and growth of reaction time dynamics. Materials and methods. The study included 567 males of age between 7 and 22 years. Study materials included the results of simple reaction time and complex reaction time during progressive period. Conclusions. Progressive period of results' development lasts until the age of about 17-17.5, then stabilization of the analyzed results was observe. The most dynamic growth of all types of reaction time was observed in the analyzed 7 and 8-year-old boys.