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Öğe Effects of Acute High Intensity Interval Exercise on Irisin and Myostatin Responses in Elite Kickboxers(LIPPINCOTT WILLIAMS & WILKINS, 2016) Belviranli, Muaz; Kabak, Banu; Okudan, Nilsel[Abstract not Available]Öğe Elit sporcularda anaerobik egzersize miyokin cevabı(Selçuk Üniversitesi Sağlık Bilimleri Enstitüsü, 2016) Kabak, Banu; Belviranlı, MuazBu çalışmanın amacı erkek sporcularla aynı yaş ve cinsiyetteki sedanterlerin anaerobik egzersize irisin ve miyostatin cevaplarını karşılaştırmaktı. Çalışmaya 18-24 yaşları arasında en az iki yıldır, düzenli antrenmanı yapan 10 erkek kick boks sporcusu ve benzer yaş grubunda ve vücut ağırlığında 10 sedanter erkek katıldı. Her iki gruptaki katılımcıların istirahat kanları alındıktan sonra 30 sn süreli Wingate testi aralarda 4 dakika dinlenme verilerek 4 kez uygulandı. Testten hemen sonra, üç saat sonra ve altı saat sonra kan örnekleri alınarak plazma irisin ve miyostatin seviyeleri analiz edildi. İstirahatte irisin seviyeleri sporcularda sedanterlerden daha yüksekti (P < 0,05). Egzersizden hemen sonra irisin seviyeleri her iki grupta da azaldı (P < 0,05). İrisin seviyesindeki bu azalma miktarı sporcularda sedanterlere göre daha fazlaydı (P < 0,05). Egzersizden sonraki 3. saatte irisin seviyesi egzersiz öncesi yakın değerlere yükseldi (P < 0,05). Bu yükselme sporcularda sedanterlere göre daha fazlaydı (P < 0,05). Sporcuların istirahatteki, egzersizden 3 saat sonraki ve egzersizden 6 saat sonraki irisin seviyeleri sedanterlere göre anlamlı olarak daha yüksek bulundu (P < 0,05). İstirahatte miyostatin seviyelerinde gruplar arasında anlamlı bir fark yoktu (P > 0,05). Miyostatin seviyeleri her iki grupta da egzersizden hemen sonra yükseldi (P < 0,05). Sporcularda egzersizden 3 saat sonra miyostatin seviyesi egzersizden hemen sonraki değerlere göre azaldı (P< 0,05). Sporcu ve sedanterlerin istirahatteki, egzersizden hemen sonraki, egzersizden 3 saat ve 6 saat sonraki miyostatin seviyeleri arasında anlamlı bir fark yoktu (P > 0,05). Sonuç olarak, sporcularda ve sedanterlerde anaerobik egzersizin plazma irisin ve miyostatin seviyelerini etkilediği gözlemlenmiştirÖğe Examining the Relationship Between Dynamic Balance Skill and Reactive Agility Performance in Karate Athletes(Selçuk Üniversitesi, 2022 Eylül) Kocahan, Tuğba; Günaslan, Hamitcan; Kabak, Banu; Hasanoğlu, Adnan; Akınoğlu, BihterThe aim of this study is to examine the relationship between dynamic balance ability and reactive agility performance in karate athletes. A total of 53 karate athletes, 19 females (35.8%) 34 males (64.2%), (mean age: 18.02 ± 1.60 years, mean height 172.13 ± 7.59 cm; mean body weight 64.83 ± 9.75 kg) were included. Dynamic balance ability was tested in three directions: anterior, posterolateral and posteromedial using the "Y Balance Test" platform. Reactive agility performance was evaluated in a SpeedCourt ™ system in a closed space. Pearson or Spearman correlation analysis was used according to the distribution status to examine the relationship between the variables. Statistical error level was determined as p<0.05. It was determined that there was a positively weak and moderate correlation between the dynamic balance ability of the athletes and their reactive agility performance (r = 0.273 / 0.565, p <0.05). As a result of our study, it was determined that karate athletes with good dynamic balance ability had good agility performance. Having good dynamic balance skill indicates that the athlete has less postural oscillation and more stabilization. We think that this situation will contribute to better reactive agility activities that require constant change of direction. As a result of our study, it is recommended to consider dynamic balance elements in improving reactive agility performance in karate athletes.Öğe Investigation of the Body Composition and Maximal Oxygen Consumption Capacity of Elite Boxing and Wrestling Athletes(Selçuk Üniversitesi, 2020 Aralık) Balcı, Aydın; Tortu, Erkan; Kabak, Banu; Akınoğlu, Bihter; Hasanoğlu, Adnan; Kocahan, TuğbaThe aim of the study is to compare body composition and maximal oxygen consumption of elite boxing and wrestling athletes and to investigate the relationship between body composition and maximal oxygen consumption. A total of 26 elite athletes (13 boxing and 13 wrestling) were included in the study. On the same day, the and body composition assessment and maximal oxygen consumption measurement of the athletes were performed. Body composition evaluation of athletes was made with MF-BIA (Tanita MC-980, 1000 kHz, Tokyo, Japan) device. Maximal oxygen consumption measurement was made using a direct method breath-by-breath automatic portable gas analysis system (Cosmed K5, Italy). Mann Whitney U Test and Spearman Correlation Test were used for statistical analysis. The statistical significance level was determined as p <0.05. There was not any difference in body weight, body fat percentage, and relative oxygen consumption values of boxing and wrestling athletes (p> 0.05); however, there were statistically significant differences in the Body Mass Index, muscle mass, absolute oxygen consumption, carbon dioxide production, respiratory coefficient, and heart rate values (p <0.05). In boxing and wrestling athletes, there was a strong negative correlation between BMI and body fat percentage and relative oxygen consumption values (p <0.05); Muscle mass and relative oxygen consumption values were found to be strong in boxing athletes and moderate in wrestling athletes (p <0.05). As a result of our study, it has been observed that there is a relationship between body composition and maximal oxygen consumption of both boxing and wrestling athletes. In addition, with the knowledge that body composition is important in strength and anaerobic power-based sports branches, it raises the idea that athletes in these branches should do aerobic exercises to keep their body composition at the targeted levels.Öğe Irisin and myostatin responses to acute high-intensity interval exercise in humans(WALTER DE GRUYTER GMBH, 2018) Kabak, Banu; Belviranli, Muaz; Okudan, NilselBackground: The purpose of this study was to investigate irisin and myostatin responses to acute high-intensity interval exercise. Materials and methods: Ten male professional kick-boxers aged between 18 and 24 years and 10 sedentary males with similar age and body weight participated in the present study. Participants performed 4 x 30-s Wingate test separated with 4 min of rest. Blood samples were taken immediately before and after exercise, and 3 and 6 h of recovery. Results and conclusion: At rest, irisin levels were higher in the kick-boxers (p < 0.05). Immediately after the exercise, irisin levels were decreased in both groups (p < 0.05). A trend toward a return to baseline appeared after 3 h of recovery in the kick-boxers (p < 0.05). At rest, myostatin concentrations were not different between the groups (p > 0.05). Immediately after the exercise, myostatin levels were increased in both groups (p < 0.05). A trend toward a return to baseline appeared after 3 h of recovery in the kick-boxers (p < 0.05). Acute high-intensity interval exercise decreased irisin levels and increased myostatin levels.Öğe Perceptive Cognitive Skills of Elite Orienteers and Its Relation with Neurotrophic Factors and Myokines(LIPPINCOTT WILLIAMS & WILKINS, 2016) Okudan, Nilsel; Belviranli, Muaz; Kabak, Banu; Erdogan, Murat; Karanfilci, Muharrem[Abstract not Available]Öğe The relationship between brain-derived neurotrophic factor, irisin and cognitive skills of endurance athletes(TAYLOR & FRANCIS LTD, 2016) Belviranli, Muaz; Okudan, Nilsel; Kabak, Banu; Erdogan, Murat; Karanfilci, MuharremObjective: The objective of this study was to assess the cognitive performance of endurance athletes and its relation with circulating brain-derived neurotrophic factor (BDNF) and irisin levels.Methods: 26 endurance athletes (14 elite orienteers (mean SD: age=26.334.08, body weight=70.33 +/- 4.64, body height=177.7 +/- 6.1), 12 pentathletes (mean +/- SD: age=29.42 +/- 5.32, body weight=74.77 +/- 6.59, body height=180.8 +/- 3.8)) and ten sedentary (mean +/- SD: age=27.30 +/- 2.06, body weight=76.65 +/- 12.50, body height=176.9 +/- 5.2) men at almost same ages and educational levels participated in this study. Cognitive functions were analyzed with mini-mental-state examination (MMSE) and Isaacs' Set Test of Verbal Fluency (IST) tests. Insulin-like growth factor-1 (IGF-1), BDNF and irisin levels were measured in the blood samples.Results: The MSSE and IST scores of the endurance athletes were higher than that of the sedentary control group (P<0.05). Serum IGF-1 levels were higher in the pentathletes (111.18 +/- 22.26 ng mL(-1)) than the orienteers (85.89 +/- 19.32 ng mL(-1)) (P<0.05). Plasma BDNF (2.78 +/- 0.81, 4.28 +/- 1.03, and 3.93 +/- 0.77 ng mL(-1) in the sedentary, orienteers and pentathletes, respectively) and irisin (3.25 +/- 0.70, 6.16 +/- 0.99, and 6.58 +/- 1.09 mu g mL(-1) in the sedentary, orienteers and pentathletes, respectively) concentrations of the endurance trained athletes were higher than that of the sedentary control group (P<0.05). Positive correlation between the cognitive function test results and BDNF and irisin concentrations were observed (P<0.05). There was also a positive correlation between the circulating irisin and BDNF concentrations (P<0.05).Conclusion: These results suggested that irisin and BDNF levels positively correlated with cognition in the endurance trained athletes.Öğe Yüksek İrtifa Antrenmanının Pentatlon Sporcularında Oksidatif Stres ve Antioksidan Savunma Belirteçleri Üzerine Etkisi(Selçuk Üniversitesi, 2017 Eylül) Belviranlı, Muaz; Okudan, Nilsel; Kabak, Banu; Erdoğan, Murat; Karanfilci, Muharrem; Ada, Ahmet MustafaAmaç: Çalışmanın amacı elit pentatlon sporcularında yükselti antrenmanın oksidatif stres ve antioksidan savunma sistemi belirteçleri üzerine etkilerini incelemekti. Gereç ve Yöntem: Çalışmaya 24-40 yaşları arasında, düzenli antrenman yapan on iki elit erkek pentatlon sporcusu katıldı. Sporcuların deniz seviyesindeki son antrenmanlarından 24 saat sonra istirahat kanları alındı. Daha sonra sporculara 2500 metre yükseklikte 4 hafta süreyle yükselti antrenmanı yaptırıldı ve antrenman sonrasında son antrenmandan 24 saat sonra sporculardan tekrar açlık kan örnekleri alındı. Kan örneklerinde malondialdehit (MDA), glutatyon (GSH) seviyeleri ve süperoksit dismutaz (SOD) aktivitesi analiz edildi. Bulgular: Sporcularda yüksek irtifa antrenmanından sonra antrenman öncesine göre MDA ve GSH seviyeleri artmıştı (P < 0,05), fakat SOD aktivitesinde herhangi bir değişiklik yoktu (P > 0,05). Sonuç: Bu çalışmadan elde ettiğimiz bulgulara göre yükselti antrenmanı elit pentatlon sporcularda oksidatif stresi artırıp enzimatik olmayan antioksidan sistemini güçlendirirken enzimatik antioksidan sistemini etkilemez.
