IRCT20231126060196N1 IRCT 2024-01-20 Qazvin University of Medical Sciences Effect of low glycemic index diet on body composition and fatigue The effect of low glycemic index diet on body composition and fatigue in amateur strength athletes 2023-12-10 anticipated 38 Complete https://irct.ir/trial/73977 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive, Randomization description: The people participating in the study were divided into 2 groups of case (receiver of diet with low glycemic index) and control (regular diet) by random block allocation method and using RAS software, and followed the respective diet for 4 weeks. People who must follow a low glycemic index diet are given a list of prohibited foods during this period, Blinding description: The participants in this study were in a separate group; Both groups were given a file, the case group received a diet and the control group continued with their normal diet and only the study process was explained from beginning to end. N/A Body composition-fatigue factors. Intervention 1: Intervention group: The intervention group is fully justified at the beginning of the study process and a consent form is obtained; At first, a blood sample will be taken from them and an analysis and anthropometric measurements will be performed. Finally, the study will be repeated after 28 days. Food record sheets will also be given, which record 3days at the beginning, middle and end of the study. Along with strength training, foods with a high glycemic index, whose list was given to the intervention group, are removed from their diet. Intervention 2: Control group: The control group is fully justified in the beginning of the study process and a consent form is taken; At first, a blood sample will be taken from them and an analysis and anthropometric measurements will be performed. Finally, the study will be repeated after 28 days. Food record sheets will also be given, which record 3days at the beginning, middle and end of the 3-day study. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is There is no further information.