University of Tehran Press Sport Biosciences 2008-9325 16 1 2024 03 20 The Effect Of 12 Weeks Combined Exercises With Katsu On Some Growth Factors Of Young Women The Effect Of 12 Weeks Combined Exercises With Katsu On Some Growth Factors Of Young Women 77 90 98406 10.22059/jsb.2024.364778.1607 FA Leyla Jafari Phd Student of sports physiology, department of physical education and sports science Neyshabur Branch, Islamic Azad University, Neyshabur, Iran Mahmoud Soltani Assistant Professor,. Department of physical education and sports science. Mashhad Branch, Islamic Azad University, Mashhad, Iran. Mohammad Reza Hoseinabadi Assistant Professor, Department of physical education and sports science. Neyshabur Branch, Islamic Azad University, Neyshabur, Iran Amene Barjaste Yazdi Assistant Professor, Department of physical education and sports science. Neyshabur Branch, Islamic Azad University, Neyshabur, Journal Article 2023 12 10 <strong>Introduction:</strong> sports exercises are known to be desirable for the improvement of many people in society. The subject of this research was the effect of 12 weeks of combined exercises with katsu on some growth factors in young women.<br /><br /><strong>Method: </strong>The statistical population of this research was inactive young women from Mashhad City. Among them, 45 inactive people were randomly assigned into three combined training + katsu (15 people), combined training + without katsu (15 people), and control (15 people) groups. The current research was quasi-experimental with a pre-test and post-test design. The combined training group performed three consecutive sessions of resistance and aerobic exercises per week. The combined training group with katsu performed resistance exercises by implementing a cuff with the intensity of 20% of one maximum repetition (1RM) at the beginning of the training and aerobic training with 45% of the maximum heart rate (HRmax). the combined training group without katsu, performed resistance training with 80% of 1RM and aerobic training with 45% of HRmax. the combined training group with katsu and the combined training group without katsu only performed the combined exercises. The data were analyzed using T-test, one-way analysis of variance test, and Bonferroni's post hoc test at a significance level of P≤0.05 via SPSS software version 21.<br /><strong> Results:</strong> Statistical results showed that twelve weeks of combined training with and without katsu increased the levels of IGF-1, follistatin and decreased myostatin in young women (P=0.05).<br /><br /><strong>Conclusion:</strong> According to the results of this research, combined exercises with katsu are desirable in increasing the growth factors of young women and are effective in improving their health status. <strong>Introduction:</strong> sports exercises are known to be desirable for the improvement of many people in society. The subject of this research was the effect of 12 weeks of combined exercises with katsu on some growth factors in young women.<br /><br /><strong>Method: </strong>The statistical population of this research was inactive young women from Mashhad City. Among them, 45 inactive people were randomly assigned into three combined training + katsu (15 people), combined training + without katsu (15 people), and control (15 people) groups. The current research was quasi-experimental with a pre-test and post-test design. The combined training group performed three consecutive sessions of resistance and aerobic exercises per week. The combined training group with katsu performed resistance exercises by implementing a cuff with the intensity of 20% of one maximum repetition (1RM) at the beginning of the training and aerobic training with 45% of the maximum heart rate (HRmax). the combined training group without katsu, performed resistance training with 80% of 1RM and aerobic training with 45% of HRmax. the combined training group with katsu and the combined training group without katsu only performed the combined exercises. The data were analyzed using T-test, one-way analysis of variance test, and Bonferroni's post hoc test at a significance level of P≤0.05 via SPSS software version 21.<br /><strong> Results:</strong> Statistical results showed that twelve weeks of combined training with and without katsu increased the levels of IGF-1, follistatin and decreased myostatin in young women (P=0.05).<br /><br /><strong>Conclusion:</strong> According to the results of this research, combined exercises with katsu are desirable in increasing the growth factors of young women and are effective in improving their health status. https://jsb.ut.ac.ir/article_98406_2a0752f0380850b902aacb971e8a367a.pdf