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The purpose of this study was to evaluate the effects of a Step Aerobics Training (SAT) on the skin temperature (Tsk) in different regions (ROI) of the anterior body surface. The study included 15 healthy volunteers of the Bialystok University of Technology (BUT) without any previous experience in SAT training. Two sets of thermograms were recorded before and immediately after exercise at the first and last sessions of a 30-weeks SAT program with a progressive intensity. The results indicate a generalized drop in body temperature immediately after exercise with ΔTsk values of -2.45ºC registered immediately after the first training and lower drops (ΔTsk = -1.69ºC) after the 30 weeks of SAT. The regions with lower values of post- vs pre-exercise Tsk were the thighs both in the first session and in the last session of the 30-weeks SAT program. The results show non-significant variations for asymmetries between the values of the contralateral ROIs in every moment of the data collection. We concluded that a 30-week SAT program resulted in significant drop of mean Tsk of evaluated body parts (ROI), being the thermal effects related with the areas more activated in the sport practice. From the thermal asymmetries perspective, the training program carried out did not generate any injury risk for the participants.
EN
Introduction: Exercise at various durations and intensities impact on blood and stem cells. This pilot study examined the effects of 30 minutes of treadmill walking on hematological indices and progenitor stem cells CD34+ in healthy subjects. Materials and methods: A total of 17 non-smoking, healthy students, aged 20 to 22 years participated. Hemoglobin, hematocrit, white blood cells, platelets, and stem cell CD34+ numbers were assessed before and after moderate exercise. Statistical analyses examined the relationships between CD34+ cells versus hematological indices, age, and body mass index. Results: Following exercise, significant increases were observed in leukocytes, neutrophils, eosinophils, and CD34+ cells numbers. For CD34+ cells, a fourfold increase was seen. Significant correlations between CD34+ cells, white blood cells, and neutrophils were found. Conclusion: Our results suggest that moderate exercise has a physiological impact on hematologic parameters and stem cells CD34+ in healthy subjects. Furthermore, our findings suggest that brief treadmill exercise may enhance tissue repair mechanisms so important in physiotherapy.
EN
Purpose: To assess the basic motor skills and the effects of physical training improvement program in a group of adolescents. Material and methods: The study group comprised 133 students (92 women and 41 men) aged 17 to 19 years. First, the subjects’ motor skills were tested using the Eurofit Fitness Testing Battery. Second, the general improving program of physical training was implemented during the same school year. Third, the Eurofit test was repeated at one year after the initial one. The SPSS 15.0 software was used to analyse the data. Results: At the first measurement, only 2/133 students performed all the Eurofit tests on satisfactory (above the national sample 50%) level. In four of nine domains the results were below representative national sample. A year later, after completion of the training program, 37/133 students (27.1%) performed all Eurofit domains above the 50th percentile (P<0.001), the improvements were registered in previously deficit Eurofit Test constituencies. Conclusions: A low level of physical fitness has been observed in majority of adolescents. A general program of physical training leads to improvement of motor skills in a significant number of adolescents and the performance in the Eurofit test domains.
EN
The purpose of this study was to examine the benefits of physical exercise among secondary school students. Participants in the study were 251 students (120 boys and 131 girls) attending three public secondary schools in the Hlanganani rural area of South Africa. A validated questionnaire was used to collect data. Results of this study indicated that students exercised to be with their friends, to be physically attractive and compete with others. The findings of this study have practical implications for promoting participation in physical activity among students in rural schools. In an effort to promote physical activity participation, schools should be provided with quality sports infrastructure and funding so that they can implement school sport programmes. Finally, the teaching of physical education should be emphasised in schools as it is the cornerstone for children’s involvement in physical activity.
EN
Researchers have identified a host of factors that influence immigrant men’s understanding of and commitment to health, but overall the scholarship is still unsettled, in large part because the experiences of immigrant groups are so varied. In this paper, based on interviews with Kurdish immigrants in the United States, we demonstrate that the field of health provides both opportunities and pitfalls for men whose social, familial, and masculine aspirations simultaneously pull them into American life and push them towards a segregated existence. We conclude that men use a discourse of health to simultaneously assert themselves as men and maintain their connections to their original culture, just as they use a discourse of masculine responsibility to account for the health-related choices they make.
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