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1

Supramaximal intermittent exercise ‒ A comparison of effects on anaerobic and aerobic capacity in trained prepubertal boys and trained adults

100%
Szczesna-Kaczmarek A.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
|
2018
|
tom 10
|
nr 4
Background: ‪The aim of this study was to investigate possible variations in trained children and adults in physiological, metabolic and performance factors in response to supramaximal intermittent exercise. Material and methods: Fourteen adult trained men (eight long-distance runners and six sprinters) and seven 12-year-old trained boys performed two exercise tests on separate days: incremental cycloergometric test to determine VO2 max, AT and a supramaximal intermittent exercise (SMIE) test to determine peak power, anaerobic and aerobic capacity and also blood acidification. Results: ‪ ‪The results have shown similar relative values of VO2 max and total work performed in WAnT between boys and adult (p > 0.05) and significant differences in power peak between boys and sprinters. Total work in SMIE was performed at the energy cost from aerobic and anaerobic metabolism in boys and sprinters respectively: aerobic – 49% and 10%, glycolytic – 31% and 70%, phosphagenic – 20% and 20%. There were significant differences between groups in [La-], with no changes in parameters of acidification. Conclusions: ‪Differences between boys and adults shown under SMIE conditions are important in the practical conduct of the training appropriate to the metabolic and physical capacity of peri-pubertal boys.
2

Intermittent exercise models may be basic in research of creatine complex effects in aerobic and anaerobic performance of athletes and Cr supplementation influence

100%
Szczesna-Kaczmarek A.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
|
2016
|
tom 08
|
nr 3
Background: The aim of this work was to use high intensity intermittent exercise (HIIE) to identify par ticipation of creatine to cellular energy transduction in skeletal muscle and effect of creatine supplementation. Material/Methods: Eleven additionally active physical education students performed two exercise tests: an incremental cycloergometric test to determine of anaerobic threshold and VO2max; the HIIE (30 s Wingate Test repeated 3-times interspersed with 7 minutes recovery) before and after ingestion of 20 g creatine a day for 5 days. Results: Cr ingestion resulted in increased total work production during exercise bouts the first and second and the cumulative increase in the phosphagenic work participation in the total work done as well as in simultaneous cumulative decline in the glycolytic work participation. Cr supplemented participants stated inhibition of a decrease in peak power output during consecutive bouts and changes in blood pH and buffers capacity. Increased creatinine elimination to 24-h urine after HIIE was inversely proportional to values of anaerobic threshold and VO2max. Conclusions: The used experimental interval model with HIIE allowed us to show that oral Cr supplementation may yield benefits to enhance the aerobic and anaerobic athlete’s performance during interval training due to Cr/CrP shuttle mechanism in the muscle function.
3

The fate of potassium ions released from contractile muscle during repeated supramaximal exercise

100%
Szczesna-Kaczmarek A.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
|
2009
|
tom 01
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nr 1
The purpose of this paper was to examine the fate of K+ released from contracting muscles during supramaximal exercise repeated three times, which is known to be associated with a large efflux of K+ and lactate into plasma. Material/Methods: Nineteen healthy students of physical education volunteered for the study. All participants performed 30s Wingate Anaerobic Test three times with 7 min rest break. During the exercise test indices of anaerobic capacity were assessed. Parameters characterizing acid base status and potassium ion concentration in plasma, whole blood and erythrocytes were measured before the exercise test, during each break between bouts and 15 min after the end of the exercise. Results: The result showed that plasma and intraerythrocyte ion potassium concentrations were significantly increased after each bout of exercise, but exercise induced plasma hiperkalemia was levelled during the first 5 min of recovery. Simultaneously, ion potassium concentration increased in erythrocytes, but not in urine. Post exercise potassium excretion to urine was lower during 24 hours of recovery than before the exercise. Conclusions: Obtained results suggest that erythrocytes take part in rapid changes of blood potassium level after extreme exercise. We also considered that the rapid decrease in exercise – elevated K+ concentration in plasma due to their transport to erythrocytes as a prevention of the loss of potassium ion by the renal system.
4

Muscle fiber injury after eccentric exercise

75%
Szczesna-Kaczmarek A.
Acta Biochimica Polonica
|
2007
|
tom 54
|
nr Supplement 4
5

Cardiorespiratory responses to submaximal exercise in 16-18-year-old trained and untrained boys

45%
Luszczyk M., Ziemann E., Grzywacz T., Laskowski R., Szczesna-Kaczmarek A.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
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2010
|
tom 02
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nr 1
The aim of this study was to compare chosen parameters and coefficients characterizing the action of the cardiovascular system and the respiratory system at a low level of a cycloergometric exercise in young boys practicing handball and their untrained peers. In the present study we searched for an answer to questions concerning the influence of physical training on children's organism in progressive youth development.The technique of parallel groups was used: the experimental one (boys training handball, n=12) and the control one (not trained boys, n=58). The developmental age of the subjects was evaluated by percentile charts. A five-minute work on a bicycle ergometer was used to observe reaction of the organism to submaximal exercise below AT. During the test the parameters characterizing the respiratory and cardiovascular systems were measured by means of a gas analyzer Oxycon Pro Jaeger (Viasys) and Breath by Breath program.We noted adapting changes in the circulatory system in young handball players. The group practicing handball showed a higher value of O2·HR-1 (p≤0.05) in comparison with the untrained boys. Oxygen deficit was higher in the trained group, but there were no statistically significant differences between the trained and untrained boys.Training during the biological progressive development causes adaptive changes in the cardiovascular system in the light of an increase in pulse oxygen (O2·HR-1) in submaximal work. Handball training during the biological progressive development causes an increase in oxygen deficit (Def. O2).
6

Anaerobic power and dependence on chosen anthropometric parameters in young handball players

45%
Luszczyk M., Laskowski R., Ziemann E., Grzywacz T., Szczesna-Kaczmarek A.
Baltic Journal of Health and Physical Activity. The Journal of Gdansk University of Physical Education and Sport
|
2009
|
tom 01
|
nr 1
The main aim of the present study was an attempt to answer the enquiries concerning the influence of physical training on morphological changes (anthropometric indicators), capability of anaerobic work and their interactions with a natural development of youth in pubertal and post-pubertal age.  The technique of parallel groups was used: experimental (handball trained TR) and control (not trained NT). The research period comprised two consecutive years. Once per year selected somatic parameters, body composition, biological age, and anaerobic parameters were determined by means of 30 s Wingate Anaerobic Test (WAnT). Results have shown the high intensity of boys' biological development in circumpubertal age in response to several years of training handball. A further analysis indicated smaller dispersion of parameters describing the growth and physiological development of the TR group than in NT. The results suggest that handball training caused a significant improvement in morphological and functional indicators. Consequently, capabilities of physical effort increase and a more harmonic development is achieved. Moreover, the results have shown that capabilities of anaerobic work in the TR group have differently depended on the time of progressive development, whereas in the NT group there has been an increase in these capabilities in relation to the age of the examined boys. Several years of handball training did not influence the increase in anaerobic efficiency of pre-pubertal age boys. On the other hand, handball training in pubertal and post-pubertal age boys caused a statistically significant increase in maximum anaerobic power (MPWAnT). A high positive correlation between weight and MPWAnT confirms a relationship between anaerobic power and body growth during puberty.
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