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Jan Czeczelewski, Barbara Długołęcka and Barbara Raczyńska

Intake of Calcium and Phosphorus and Levels of Bone Mineralization (BMC) and Mineral Bone Density (BMD) of Female Swimmers in the Pubescence Period

The objective of this study was to evaluate bone mineralization (BMC) and bone mineral density (BMD) of the osseous tissue in girls training swimming an being in the period of reaching the peak bone mass, as compared to girls being at a similar age and non-practicing sport, taking into account dietary allowances for calcium and phosphorus and dietary ratios of these elements.

Both the swimmers and their non-training colleagues were found to meet nutritional demands to the same extent and their diets did not differ in the intakes of energy nor nutrients (protein, calcium, phosphorus), which is incorrect in the case of the non-training girls. An alarmingly low intake of calcium at a, simultaneously, excessive intake of protein and phosphorus, as well as incorrect ratios between calcium and phosphorus and between calcium and protein observed especially in the case of the swimmers, might have an adverse effect on the mineralization of osseous tissue in the period of reaching peak bone mass.

Open access

Barbara Długołęcka, Ewa Jówko, Jan Czeczelewski, Igor Cieśliński and Andrzej Klusiewicz

Abstract

Introduction. The study sought to assess bone mineral content (BMC) and bone mineral density (BMD) in men with different levels of physical activity during the period of reaching peak bone mass

Material and methods. The research included wrestlers (n = 31) and students of the University of Physical Education (n = 88) aged 18-24. The state of the bone tissue was assessed with the use of the bone densitometry (DEXA) method (lumbar spine L2-L4). Data concerning the physical activity levels and nutritional behaviours of the study participants were gathered in a diagnostic survey carried out using a specially prepared questionnaire.

Results. The analysis of the results revealed that as there were no statistically significant differences in nutritional behaviours between men from particular groups, physical activity proved to be the factor which significantly differentiated the groups under investigation in terms of their bone mass. The highest mean values of the bone parameters analysed were achieved by the wrestlers, who demonstrated a high level of physical activity.

Open access

Agnieszka Wasiluk, Jerzy Saczuk, Jan Czeczelewski, Barbara Długołȩcka and Ewa Czeczelewska

Abstract

Introduction. TIn a situation characterized by a low birth rate and a highly competitive education market, increasing attention is currently being paid not only to students' level of education, but also to their competencies and predisposition. Consequently, the purpose of this study is to analyze differences in morphological features among physical education students as compared with students of other subjects at the Faculty of Physical Education and Sport (WWFiS) in Biała Podlaska. Material and methods. This study is based on anthropometric data from 165 first-year female students at WWFiS in Biała Podlaska. Analysis was conducted on a selection of students divided into groups based on their study profile. Using the technique developed by Martin and Saller, measurements were taken of the anthropometric features required to determine BMI and WHR indexes and to estimate body tissue composition. The following were used to characterize the collected variables: sample size (n) arithmetic mean ( ) and standard deviation (SD). Differences among the groups with regard to the features being measured were assessed using ANOVA variation analysis and NIR testing. Results. The study did not confirm reports from other authors concerning analysis of connections between bodily structure and education profile. Thus, it should be concluded that a student's physique plays only a small role in their being selected to study physical education. Conclusions. The differences noted between the groups should rather be interpreted as owing to environmental differences in the lifestyles of the girls in question, rather than to recruitment procedures and, by extension, education profile.