en فيزيولوژی ورزشی و شاخه‌های وابسته بدان Sport Physiology and its related branches مقاله اصیل Original Article <div style="text-align: justify;"><span style="font-family:tahoma;"><span style="font-size:12px;"><strong>Background.</strong>&nbsp;High-intensity interval training (HIIT) may affect acylated ghrelin (AG) through changes in body composition.<br> <strong>Objectives.</strong>&nbsp;The present study was designed to investigate and compare the effects of two different orders of wrestling-based HIIT on AG levels and body composition in highly trained wrestlers.<br> <strong>Methods. </strong>Forty-two male wrestlers (aged 16&ndash;21&nbsp;years) were randomly assigned to one of three groups: HIIT23 (2 sets of 3 min wrestling techniques; 80-90% HR_max); HIIT32 (3 sets of 2 min wrestling techniques; 90-100% HR_max); and a control group that performed routine wrestling exercises. HIIT protocol consisted of eight techniques which were performed three </span></span><span style="font-family:tahoma;"><span style="font-size:12px;">day</span></span><span style="font-family:tahoma;"><span style="font-size:12px;">/week for eight weeks. Body composition and total plasma AG were measured 48 h before and after the protocol.&nbsp;<br> <strong>Results. </strong>Body fat percentage (<em>p</em><0.01) and weight (<em>p</em><0.05) were significantly decreased in the HIIT groups from pre- to post-test. There was also a significant decrease in body fat percentage of both HIIT groups compared to the control group (<em>p</em>=0.002). Although a significant increase in post-test AG was observed in all the groups, AG levels in HIIT groups was approximately twofold higher than </span></span><span style="font-family:tahoma;"><span style="font-size:12px;">control</span></span><span style="font-family:tahoma;"><span style="font-size:12px;"> group (<em>p</em><0.01).<br> <strong>Conclusion. </strong>It seems that eight weeks of wrestling-based HIIT can cause to significant decreases in body fat percentage and weight which is related to </span></span><span style="font-family:tahoma;"><span style="font-size:12px;">increase</span></span><span style="font-family:tahoma;"><span style="font-size:12px;"> in total levels of plasma AG in highly trained wrestlers.</span></span></div> Acylated Ghrelin, HIIT, Wrestling Techniques, Body Fat Percentage, Body Weight 11 17 http://aassjournal.com/browse.php?a_code=A-11-830-1&slc_lang=en&sid=1 Keivan Akhoundnia Akhoundnia.Keivan@gmail.com 10031947532846007183 10031947532846007183 No Department of Physical Education, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran Amir Rashid Lamir Rashidlamir@um.ac.ir 10031947532846007184 10031947532846007184 Yes Department of Exercise Physiology, Faculty of Sport Science, Ferdowsi University of Mashhad, Mashhad, Iran Rambod Khajeie r.khajeie@gmail.com 10031947532846007185 10031947532846007185 No Department of Physical Education, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran Hamid Arazi hamidarazi@yahoo.com 10031947532846007186 10031947532846007186 No Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan, Rasht, Iran