Kan akımı kısıtlamalı direnç egzersizlerinin irisine ve cinsiyet hormonlarına akut etkisi

Öz

Amaç: Egzersiz ile irisin ve seks hormonlarının salınımı arasındaki ilişki netlik kazanmamış, güncel bir araştırma konusu olarak ilgi çekmektedir. Bu çalışmada kan akımı kısıtlamalı direnç egzersizlerinin irisin ve cinsiyet hormonlarına akut etkisinin incelenmesi amaçlanmıştır. Gereç ve Yöntem: Araştırmaya, yaşı 20-35 yıl arasında olan sağlıklı erkekler (n=17) dahil edilmiştir. Katılımcıların fiziksel aktivite düzeyi Uluslararası Fiziksel Aktivite Anketi-kısa form ile belirlenmiştir. Vücut kompozisyon analizi ve izotonik kas kuvvet ölçümü yapılan bireyler kan akımı kısıtlamalı düşük şiddetli (1-Maksimum Tekrar’ın %20’sinde) direnç egzersizi (n=6), kan akımı kısıtlamasız yüksek şiddetli (1-Maksimum Tekrar’ın %70’inde) direnç egzersizi (n=5) ve kontrol grubu (n=6) olarak 3 gruba ayrılmıştır. Egzersize akut irisin, testosteron ve östrojen yanıtını değerlendirmek için egzersiz sonrası 15. dakika katılımcılardan kan alınmıştır. Bulgular: Araştırmaya 17 sağlıklı erkek katılmıştır. Katılımcıların yaş ortalaması 26,12±2,89 yıl, fiziksel aktivite düzeyleri 1259,17±1003,12 MET/hafta, 1-Maksimum Tekrarı ise ortalama 41,12±7,48 kg saptanmıştır. Grupların tanımlayıcı özellikleri homojen dağılmıştır (p>0,05). Akut egzersiz sonrasında irisin ve cinsiyet hormon seviyelerinde gruplar arasında istatistiksel olarak anlamlı fark bulunmamaktadır (p>0,05). Sonuç: Kan akımı kısıtlamalı düşük şiddetli direnç egzersizleri ile kan akımı kısıtlamasız yüksek şiddetli direnç egzersizleri sonrasında salınan irisin ve cinsiyet hormonları düzeyleri arasında fark saptanmamıştır.

Anahtar Kelimeler

• Kan akımı
• egzersiz
• testosteron
• östrojen
• irisin

Acute effect of blood flow restricted resistance exercise on irisin and sex hormones

Öz

Purpose: The relationship between exercise and irisin and sex hormone release is unclear and is of interest to current research. This study aimed to investigate the acute effect of blood flow restricted (BFR) resistance exercise on irisin and sex hormones. Material and Methods: Healthy males (n=17) aged 20-35 years were included in the study. Participants' physical activity levels were determined using International Physical Activity Questionnaire (IPAQ)-short form. Participants underwent body composition analysis and isotonic muscle strength measurement and were randomly divided into 3 groups: low-intensity (20% of 1-RM) BFR resistance exercise (n=6), high-intensity (70% of 1-RM) non-BFR resistance exercise (n=5), and a control group (n=6). Blood samples were obtained 15 minutes post-exercise to assess acute irisin, testosterone, and estrogen responses. Results: The study included 17 healthy males. The mean age of participants was 26.12±2.89 years, mean physical activity was 1259.17±1003.12 MET/week, and mean 1-RM was 41.12±7.48 kg. The descriptive characteristics of the groups were homogeneously distributed (p>0.05). The acute post-intervention irisin and sex hormone levels were not statistically different between the groups (p>0.05). Conclusion: There was no difference found between the levels of irisin and sex hormones released after low-intensity BFR resistance exercise and high-intensity non-BFR resistance exercise.

Anahtar Kelimeler

• Blood flow
• exercise
• testosterone
• estrogens
• irisin

Kaynakça

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