en پژوهشی اصيل Original Research <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:">Aims:</span></b> <span cambria="" style="font-family:">This study aimed to examine the acute effects of exhaustive incremental exercise on serum leptin, glucose, and lactate in one session in trained 18-26 years old men.</span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:">Material & Methods:</span></b> <span cambria="" style="font-family:">The present study was conducted in 2021 on male physical education students available at the Faculty of Sports Sciences of the Shahid Chamran University of Ahvaz in Iran. Thirty students who had 18-26 years old, with body fat between 15-25% and VO2max between 35-45ml/kg/min, were simple randomly selected through 200 physical education students, and they were divided into two equal training and the control groups (each of them consists of 15 subjects). The exercise test included the Astrand test on a treadmill that performed exhaustive incremental exercise. Blood samples have been collected from two groups in pre and post-test and 9 hours after exhaustive incremental exercise. The statistical analyses used were the Independent T-test and one-way ANOVA tests by SPSS version 20.</span><span style="font-family:"Cambria","serif""></span></span></span></span><br> <span style="font-size:10pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:">Findings:</span></b><span cambria="" style="font-family:"> Results showed that serum leptin did not change between three measurement sets in the training group in comparison to the control group (p>0.05). Plasma glucose significantly changed between pre and post-test and pretest and 9 hours later (p<0.001). Plasma lactate significantly changed in post-test in comparison to pretest and 9 hours later to post-test (p<0.001). </span><b><span style="font-family:"Cambria","serif""></span></b></span></span></span><br> <span style="font-size:10pt"><span style="tab-stops:right 40.7pt left 337.9pt 364.9pt"><span style="unicode-bidi:embed"><span new="" roman="" style="font-family:" times=""><b><span cambria="" style="font-family:">Conclusion:</span></b><span cambria="" style="font-family:"> Incremental exhaustive exercise has no significant effect on serum leptin.</span></span></span></span></span><br> &nbsp; Exercise,Leptin,Lactic Acid,Glucose, 31 36 http://jccs.yums.ac.ir/browse.php?a_code=A-10-71-5&slc_lang=en&sid=1 M. Hosseini 10031947532846005660 10031947532846005660 No Department of Physical Education, Faculty of Physical Education, Farhangian University of Kerman, Kerman, Iran B. Mohammadi 10031947532846005661 10031947532846005661 No Department of Pediatrics, School of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran J. Mohammadi j.mohammadi.4554@gmail.com 10031947532846005662 10031947532846005662 Yes Department of Physiology, School of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran