Effect of Strenuous Physical Activity on Blood Vitamin A and Carotene in Young Men

Science ◽  
1953 ◽  
Vol 118 (3073) ◽  
pp. 629-630 ◽  
Author(s):  
W. H. James ◽  
I. M. ElGindi
2013 ◽  
Vol 27 (4) ◽  
Author(s):  
Jadwiga Pietraszewska ◽  
Anna Burdukiewicz ◽  
Aleksandra Stachoń ◽  
Justyna Andrzejewska

Antioxidants ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 37
Author(s):  
Gabriela Wojciak ◽  
Jadwiga Szymura ◽  
Zbigniew Szygula ◽  
Joanna Gradek ◽  
Magdalena Wiecek

Background: The activity of antioxidant enzymes and sirtuins (Sirt) decreases along with age, which is counteracted by aerobic training. Sirtuins increase antioxidant defence. Whole-body cryotherapy (WBC) increases total antioxidant capacity (TAC) in young men. The aim of our study was to assess the impact of 24 WBC treatments on the blood concentration of selected sirtuins and the level of antioxidant defence as well as oxidative stress index of training and non-training men depending on age. Methods: The study involved 40 males. In each group, there were 10 non-training older and young men (60 NTR and 20 NTR), and 10 older and young long-distance runners (60 TR, 20 TR). During an 8-week period, participants underwent 24 WBC treatments (3 min −130 °C), which were performed three times a week (Monday, Wednesday, Friday). The concentrations of Sirt1, Sirt3, TAC, total oxidative status and the activity of superoxide dismutase (SOD), catalase and glutathione peroxidase (GPx) in the blood were determined before 1 WBC and after 1 WBC, 12 WBC and 24 WBC. Results: After 1 WBC, the activity of GPx and the concentration of Sirt1 and TAC in 60 TR and TAC in 60 NTR increased. After 12 WBC, the level of Sirt1 in 20 NTR and SOD in 20 TR increased. After 24 WBC, the level of Sirt1 increased in 60 TR and in 20 NTR, Sirt3 in 60 TR and SOD in 20 TR. Conclusions: Cryogenic temperatures increase blood levels of Sirt1 and Sirt3 and systemic antioxidant defence in men, but the effect is dependent on age, level of performed physical activity and the number of applied treatments.


1984 ◽  
Vol 51 (02) ◽  
pp. 171 ◽  
Author(s):  
Gail E. Butterfield ◽  
Doris H. Calloway

2020 ◽  
Vol 12 (1) ◽  
pp. 166-172
Author(s):  
Anna Pietrzak ◽  
Anna Kęska ◽  
Marziyeh Saghebjoo ◽  
Zeynab Nezamdoost

SummaryStudy aim: The purpose of this study was to compare intake of antioxidant vitamins (A, C, E) in young women with various levels of physical activity.Material and methods: The study included 3 groups of females: 40 women with no extra physical activity (Sedentary), 40 women involved in regular, moderate sports activities (Recreationally Active) and 40 female athletes competing at an international level (Athletes). Participants’ diet was assessed on the basis of 3-day diet records which were analysed using the computer program ‘Dieta 5.0’. Body composition was evaluated by the bioelectrical impedance analysis (BIA) method.Results: Athletes were characterized by the lowest body fat and highest lean body mass in comparison with the other groups. They also showed the highest intake of energy, proteins and carbohydrates compared to Active and Sedentary women. The consumption of vitamin A amounted to 180.0% of RDA in Athletes, 98.8% in Recreationally Active and 97.8% in Sedentary women. Vitamin C intake in Athletes equalled 275.0% of RDA, whereas the deficiency of this vitamin was observed in Recreationally Active and Sedentary women (62.3% and 46.1% of RDA, respectively). The study groups showed consumption of vitamin E at the level of 146.7% of AI in Athletes, 115.0% in Recreationally Active and 111.3% in Sedentary women.Conclusion: Athletes consumed excessive amounts of antioxidant vitamins. Recreationally Active and Sedentary women met the demand for vitamin A and E, but the intake of vitamin C was not sufficient, which could lead to health problems. The current findings also indicate that energy intake was at a low level regardless of the study group.


Author(s):  
Nataliia Semenova ◽  
Romana Sirenko ◽  
Maryana Ripak ◽  
Liubov Chekhovska

The article analyzes the lifestyle of students studying in the specialty «Nursing». Among students of medical colleges there was conducted a survey, which was attended by young men (n = 10) and women (n = 106), aged 15 to 21 years. The study revealed a small number of students who smoke cigarettes, but alcohol and low alcoholic drinks were consumed by about 73 % of female students, of which 28 people were underage. There was discovered low physical activity among students after school - 107,08 ± 14,9 min. per week, which is about 15 minutes. for a day. It is already stated, that the lifestyle of students studying with a speciality called «Medical care» needs a constant and purposeful forming during the whole learning period.The realizing of the importance of health preservation for patients and first of all for yourself the change of students attitude according to the lifestyle and forming of the value relation to own health – all of it will promote a success full realization of social and professional functions of the future nurses.


Author(s):  
I. L. Kensytska ◽  
I.O. Olefirenko ◽  
I.V. Khrypko

The article investigates the influence of health and recreational physical activity on terminal and instrumental values of higher education institutions students. The following research methods are used, including theoretical analysis of professional scientific and methodological resources by domestic and foreign authors, sociological, psychological and diagnostic, pedagogical research methods, methods of mathematical statistics. To determine the initial level of healthy lifestyle attitudes formation among students M. Rokych’s method of “Value Orientations” has been used. The research has been conducted on the basis of Kyiv National Linguistic University, National Pedagogical University named after M. P. Drahomanov. The study has involved 48 students (23 boys and 25 girls), who were part of the experimental (EG) and control (CG) groups (total of 24 people). The program of health-improving classes for students of higher education institutions has presupposed the use of various means of health-improving and recreational physical activities twice a week. The duration of classes was one and a half hours. Those that are most in demand among student youth were chosen as priorities. Among the young men these were strength exercises, elements of sport games and recreational games. Among the girls they included health fitness exercises. We have confirmed the feasibility and necessity of using innovative means of physical activity and forms of extracurricular activities in development of such programs that significantly increase the motivation of young people to participate in such programs. In the course of the research we have studied the hierarchy of terminal and instrumental values among young men and women who studied in higher educational institutions. The application of the developed program contributed to the students' awareness of “health” category value. Among EG students such instrumental values as education (depth of knowledge, high general culture), self- control (restraint, self-discipline) and rationalism (ability to think wisely and logically, to make thoughtful, rational decisions) have transferred to the first place. The obtained results prove that there are positive changes in the system of students’ terminal and instrumental values under the influence of health and recreational motor activity.


2020 ◽  
Vol 28 (4) ◽  
pp. 843-865
Author(s):  
Evgeni L. Nikolaev ◽  
Igor E. Poverinov

Introduction. Intense physical activity is associated with good health and wellbeing of an individual, and its manifestations in students can have gender and socio-cultural features. The purpose of the study is to identify the features of physical activity of Russian and foreign students of a regional university through the assessment of its motivators, barriers and interrelation with self-esteem indicators, the knowledge of which can be used as the basis for creating personalized preventive health promotion programs. Materials and Methods. An online survey among 423 Russian and foreign students of a regional university was conducted using the Godin-Shephard Leisure-Time Physical Activity Questionnaire using the Ashton Motivators and Barriers Scale and the modified method of Dembo – Rubinstein. The data obtained were statistically processed with the calculation of Student’s t-test, chi-square, and Pearson’s correlation coefficient. Results. It has been revealed that two-thirds of the respondents have an optimal level of physical activity, and its motivators (the desire to improve health, physical shape, and body) and barriers (lack of time) are universal. Russian female university students surpass foreign ones in terms of the duration of physical activities, and foreign girls are inferior to foreign young men in terms of the frequency of classes. Barriers specific to Russian girls have been identified: Inappropriate weather and the belief that physical activity is not a right occupation for women. Russian young men have mentioned the lack of conditions for training as a barrier. The difference between Russian young men and foreign ones is that foreigners find positive correlation between physical activity, confidence, and physical attractiveness. Discussion and Conclusion. The results obtained may be useful for teaching personnel of university departments of physical education, medical and psychological services, and student self-government organizations. It is recommended that university prevention programs be gender-specific, culturally oriented, aimed at neutralizing the system of internal and social barriers to attending classes, and based on the student's self-esteem potential.


Author(s):  
O. Marchenko ◽  
O. Kholodova ◽  
K. Zaiets

Describes a complex of methods for the implementation of scientific research, the information of those who were researched is represented, methodology and methods of the research are described.Covers a wide range of problems, in particular a comprehensive study of motivation for both physical activity (needs, interests, self-conception, performance, leisure and factors of a healthy lifestyle), and for learning and succeeding.Objective: to study gender peculiarities and differences in self-description of physical development of schoolchildren. Material: The study involved schoolchildren of 5-11 grades (n = 638), among them: young men - 282, girls - 386. Correlation analysis of self-description of subjective indexes of physical development of schoolchildren has been conducted. Results: Using the results of the testing “Self-description of physical development”. It was found out that the correlational connection of indicators of self-description of the physical development of respondents of all ages have certain gender differences. We found that general self-esteem of boys of primary school age is affected by more indicators than of the girls. Young men associate with their own self-esteem and physical qualities: coordination and flexibility. Girls associate their health with physical activity and their own physical abilities. Conclusions: The obtained results of the scientific experiment give us the right to assert the existence of age and gender differences between the indicators of self-description of boys and girls who are engaged in and not engaged in sports. The study of self-assessment of physical boys and girls of different ages helped to draw conclusions about common and different priorities of the motivational sphere of physical culture and sports in gender and age.


1995 ◽  
Vol 6 (4) ◽  
pp. 347-353 ◽  
Author(s):  
Robert Mittendorf ◽  
Matthew P. Longnecker ◽  
Polly A. Newcomb ◽  
Amy T. Dietz ◽  
E. Robert Greenberg ◽  
...  

2021 ◽  
pp. 101269022110554
Author(s):  
Guillaume Routier ◽  
Jade Isner ◽  
Brice Lefèvre

In many so-called developed countries, participation to at least one physical activity or sport is a mass phenomenon. More, the combination of a high involvement rate and omnivorousness/voraciousness results in a very high volume of practice and lead to a significant volume of accidents. Academic studies have shown the importance of socio-demographic characteristics, such as age and sex, the mode of practice and the physical activity or sport itself in the occurrence of accidents. However, it is also necessary to take into account certain cultural dimensions of investment in sport, and more particularly the legitimate definition of risk specific to each activity. Since commitment and risk-taking are characteristic of young men, we tested the hypothesis that there are more accidents in physical activity or sports in which young men are statistically over-represented. This study evaluated this hypothesis using a sample of 29,000 reported physical activity or sports for a sample of 7,424 practitioners (national survey of the Ministry of Sports in France, people aged 15 and over). We used a multilevel cross classified logistic regression. The results show first a strong effect of the variable concerning the overrepresentation of young men in a physical activity or sport. Secondary, other results are more usual with the effect of modes of practice involved (high frequency, club and competition) and of the physical activity or sport itself (example of alpine skiing) and a single sociodemographic characteristic (the under 30 yo). Conversely, some results are more original, showing the non-effect of sex taken independently. These results provide essential information for taking into account the cultural dimension in sport-related prevention and for the management of the teams responsible for administering it.


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