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Jakub Kryściak
Department of Physiology and Biochemistry, Poznan University of Physical Education, Królowej Jadwigi Str. 27/39, 61-871 Poznań, Poland

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Journal article
Published: 20 August 2021 in Healthcare
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The optimal type of exercise that simultaneously decreases body weight and preserves bone health in people with obesity is unknown. This parallel randomized trial aimed to compare the effect of endurance and endurance-strength training on bone mineral density (BMD) and content (BMC) in abdominally obese postmenopausal women. A total of 101 women were recruited and randomly assigned to endurance or endurance-strength training groups. Participants trained for 60 min per day, three times per week for 12 weeks. The endurance exercises were performed at an intensity of 50–75% of the maximum heart rate, whereas the strength exercises were at 50–60% of the one-repetition maximum. Pre- and post-intervention BMD and BMC of the total body, lumbar spine, and femoral neck and physical capacity were measured. There were no differences among the densitometric parameters in the endurance group, but a significant increase in whole-body BMD in the endurance-strength group was found. Moreover, there was a significant difference between the groups in the changes in the lumbar spine BMC. Furthermore, both training programs significantly improved physical capacity with no differences between groups. Endurance training was more effective in maintaining BMC at the lumbar spine. However, both groups did not differ in effect on BMD. Further studies with a long-term follow-up should be considered to confirm these findings. The study was registered with the German Clinical Trials Register within the number DRKS00019832, and the date of registration was 26 February 2020 (retrospective registration).

ACS Style

Małgorzata Jamka; Edyta Mądry; Paweł Bogdański; Jakub Kryściak; Radosław Mądry; Aleksandra Lisowska; Elnara Ismagulova; Anna Gotz-Więckowska; Izabela Chudzicka-Strugała; Ainur Amanzholkyzy; Jarosław Walkowiak. The Effect of Endurance and Endurance-Strength Training on Bone Mineral Density and Content in Abdominally Obese Postmenopausal Women: A Randomized Trial. Healthcare 2021, 9, 1074 .

AMA Style

Małgorzata Jamka, Edyta Mądry, Paweł Bogdański, Jakub Kryściak, Radosław Mądry, Aleksandra Lisowska, Elnara Ismagulova, Anna Gotz-Więckowska, Izabela Chudzicka-Strugała, Ainur Amanzholkyzy, Jarosław Walkowiak. The Effect of Endurance and Endurance-Strength Training on Bone Mineral Density and Content in Abdominally Obese Postmenopausal Women: A Randomized Trial. Healthcare. 2021; 9 (8):1074.

Chicago/Turabian Style

Małgorzata Jamka; Edyta Mądry; Paweł Bogdański; Jakub Kryściak; Radosław Mądry; Aleksandra Lisowska; Elnara Ismagulova; Anna Gotz-Więckowska; Izabela Chudzicka-Strugała; Ainur Amanzholkyzy; Jarosław Walkowiak. 2021. "The Effect of Endurance and Endurance-Strength Training on Bone Mineral Density and Content in Abdominally Obese Postmenopausal Women: A Randomized Trial." Healthcare 9, no. 8: 1074.

Journal article
Published: 27 March 2021 in International Journal of Environmental Research and Public Health
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Long-term insulin treatment can slow the growth process and decrease physical fitness level in children. In diabetic children, these two developments should be constantly monitored. The aim of the present study was to examine differences in somatic and physical fitness characteristics between soccer-training boys with type 1 diabetes and healthy boys of the same age (reference values based on Polish population norms for somatic and motor parameters). The participants were 94 boys (8–17 years), diagnosed with diabetes, who participated in soccer training on a regular basis and received routine medical care. The study involved (a) anthropometric and body composition measurements, (b) general motor ability assessments, and (c) comparison of those characteristics with the healthy Polish population. The diabetic boys were found to have lower levels of almost all somatic traits and motor abilities as compared with the healthy boys (p ≤ 0.05). Handgrip strength was a variable with the smallest difference between the two groups. The observed differences indicate the necessity to design an appropriate control and assessment system based on simple medical and fitness field tests for diabetic children and adolescents. It will allow optimizing advanced training as well as minimize health risks before, during, or after exercise.

ACS Style

Magdalena Krzykała; Katarzyna Domaszewska; Małgorzata Woźniewicz-Dobrzyńska; Jakub Kryściak; Agata Konarska; Aleksandra Araszkiewicz; Dorota Zozulińska-Ziółkiewicz; Andrzej Gawrecki; Grzegorz Biegański; Jan Konarski. Characteristics of Selected Somatic and Motor Abilities of Youth Soccer Players with Diabetes Type 1 Treated with Insulin Pump Therapy. International Journal of Environmental Research and Public Health 2021, 18, 3493 .

AMA Style

Magdalena Krzykała, Katarzyna Domaszewska, Małgorzata Woźniewicz-Dobrzyńska, Jakub Kryściak, Agata Konarska, Aleksandra Araszkiewicz, Dorota Zozulińska-Ziółkiewicz, Andrzej Gawrecki, Grzegorz Biegański, Jan Konarski. Characteristics of Selected Somatic and Motor Abilities of Youth Soccer Players with Diabetes Type 1 Treated with Insulin Pump Therapy. International Journal of Environmental Research and Public Health. 2021; 18 (7):3493.

Chicago/Turabian Style

Magdalena Krzykała; Katarzyna Domaszewska; Małgorzata Woźniewicz-Dobrzyńska; Jakub Kryściak; Agata Konarska; Aleksandra Araszkiewicz; Dorota Zozulińska-Ziółkiewicz; Andrzej Gawrecki; Grzegorz Biegański; Jan Konarski. 2021. "Characteristics of Selected Somatic and Motor Abilities of Youth Soccer Players with Diabetes Type 1 Treated with Insulin Pump Therapy." International Journal of Environmental Research and Public Health 18, no. 7: 3493.

Journal article
Published: 10 March 2021 in International Journal of Environmental Research and Public Health
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The objective of this study was to assess the effect of 8-week long endurance training on the prooxidative–antioxidative status of plasma in women treated for breast cancer. The participants of the study were 12 women after radical mastectomy aged 45 to 56 years (M = 50.6 ± 2.9 years), who had undergone full cancer treatment, on average more than 5 years after the treatment (M = 5.9 ± 0.9 years). Body mass components were measured twice using the method of bioelectric impedance analysis. In order to optimize training loads and to assess the level of exercise tolerance of the participants, the group was subject to an ergospirometric exercise test twice, before (1st) and after (2nd) the completion of the training cycle. The blood was also taken twice for biochemical analyses. Statistically significant differences were noted in the maximum exercise load, the level of which increased in the second test (p < 0.05). No change was observed in the level of antioxidative potential, i.e., the content of some variables, ferric reducing ability of plasma (FRAP), urea, total phenolics, thiobarbituric acid reactive substances (TBARS), and in the blood indices of the body’s nutritional status during the project (total protein, albumin. Endurance training caused an increase in exercise tolerance and did not cause an aggravation of oxidative stress in women undergoing breast cancer treatment.

ACS Style

Katarzyna Domaszewska; Arkadiusz Janiak; Tomasz Podgórski; Anna Demuth; Jakub Kryściak; Paweł Perkowski; Urszula Czerniak. A Pilot Study of Influence of Endurance Training on the Prooxidative and Antioxidant Status of Women after Breast Cancer. International Journal of Environmental Research and Public Health 2021, 18, 2822 .

AMA Style

Katarzyna Domaszewska, Arkadiusz Janiak, Tomasz Podgórski, Anna Demuth, Jakub Kryściak, Paweł Perkowski, Urszula Czerniak. A Pilot Study of Influence of Endurance Training on the Prooxidative and Antioxidant Status of Women after Breast Cancer. International Journal of Environmental Research and Public Health. 2021; 18 (6):2822.

Chicago/Turabian Style

Katarzyna Domaszewska; Arkadiusz Janiak; Tomasz Podgórski; Anna Demuth; Jakub Kryściak; Paweł Perkowski; Urszula Czerniak. 2021. "A Pilot Study of Influence of Endurance Training on the Prooxidative and Antioxidant Status of Women after Breast Cancer." International Journal of Environmental Research and Public Health 18, no. 6: 2822.

Journal article
Published: 14 July 2020 in International Journal of Environmental Research and Public Health
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This study assesses the status of hydration and the acid-base balance in female handball players in the Polish Second League before and after simulated matches in both indoor (hall) and beach (outdoor) conditions. The values of biochemical indicators useful for describing water-electrolyte management, such as osmolality, hematocrit, aldosterone, sodium, potassium, calcium, chloride and magnesium, were determined in the players’ fingertip capillary blood. Furthermore, the blood parameters of the acid-base balance were analysed, including pH, standard base excess, lactate and bicarbonate ion concentration. Additionally, the pH and specific gravity of the players’ urine were determined. The level of significance was set at p < 0.05. It was found that both indoor and beach simulated matches caused post-exercise changes in the biochemical profiles of the players’ blood and urine in terms of water-electrolyte and acid-base balance. Interestingly, the location of a simulated match (indoors vs. beach) had a statistically significant effect on only two of the parameters measured post-exercise: concentration of calcium ions (lower indoors) and urine pH (lower on the beach). A single simulated game, regardless of its location, directly affected the acid-base balance and, to a smaller extent, the water-electrolyte balance, depending mostly on the time spent physically active during the match.

ACS Style

Joanna Kamińska; Tomasz Podgórski; Jakub Kryściak; Maciej Pawlak. Effect of Simulated Matches on Post-Exercise Biochemical Parameters in Women’s Indoor and Beach Handball. International Journal of Environmental Research and Public Health 2020, 17, 5046 .

AMA Style

Joanna Kamińska, Tomasz Podgórski, Jakub Kryściak, Maciej Pawlak. Effect of Simulated Matches on Post-Exercise Biochemical Parameters in Women’s Indoor and Beach Handball. International Journal of Environmental Research and Public Health. 2020; 17 (14):5046.

Chicago/Turabian Style

Joanna Kamińska; Tomasz Podgórski; Jakub Kryściak; Maciej Pawlak. 2020. "Effect of Simulated Matches on Post-Exercise Biochemical Parameters in Women’s Indoor and Beach Handball." International Journal of Environmental Research and Public Health 17, no. 14: 5046.

Articles
Published: 04 March 2020 in Research in Sports Medicine
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This study sought to evaluate the hormonal response (i.e. total testosterone, free testosterone, cortisol, and their ratios TT/C and FT/C) in the under-19 youth soccer team (n = 18) throughout a six-month period. All sport medical examinations were conducted four times: before the beginning of the preparation period (T1), just after preparation period (T2), in the middle of the competitive period (T3), and at the end of the season (T4). The cortisol concentration was decreased at the T3 (−16.9%; p = 0.014), then increased at the T2 (16.8%; p = 0.001) and at the T4 (12.7%; p = 0.062), respectively, compared to the initial value. The analyses for total and free testosterone demonstrated no differences between the measurements. Finally, values of the TT/C and FT/C ratios were increased during the T3 (25%; p = 0.017, 24.4%; p = 0.021) in comparison with the initial measurement and decreased at the T4 (−28.9%; p = 0.001, – 30.8%; p = 0.001) in comparison with the T3. The study results showed that the lowest level of peripheral fatigue was recorded in the T3, which may suggest that a correct selection of training loads does not affect the severity of catabolic processes in youth players.

ACS Style

Marcin Andrzejewski; Tomasz Podgórski; Jakub Kryściak; Paweł Chmura; Marek Konefał; Jan Chmura; Jakub Marynowicz; Jacek Adrian; Beata Pluta. Anabolic–catabolic hormonal responses in youth soccer players during a half-season. Research in Sports Medicine 2020, 29, 141 -154.

AMA Style

Marcin Andrzejewski, Tomasz Podgórski, Jakub Kryściak, Paweł Chmura, Marek Konefał, Jan Chmura, Jakub Marynowicz, Jacek Adrian, Beata Pluta. Anabolic–catabolic hormonal responses in youth soccer players during a half-season. Research in Sports Medicine. 2020; 29 (2):141-154.

Chicago/Turabian Style

Marcin Andrzejewski; Tomasz Podgórski; Jakub Kryściak; Paweł Chmura; Marek Konefał; Jan Chmura; Jakub Marynowicz; Jacek Adrian; Beata Pluta. 2020. "Anabolic–catabolic hormonal responses in youth soccer players during a half-season." Research in Sports Medicine 29, no. 2: 141-154.