مرکز منطقه ای اطلاع رسانی علوم و فناوری Journal of Sports Physiology and Athletic Conditioning 2783-3038 4 14 2025 3 16 The effect of whey supplementation on some indicators of muscle damage in elite soccer players The effect of whey supplementation on some indicators of muscle damage in elite soccer players 12 18 en Fatemeh Baqeri Islamic Azad University, Tehran, Iran Valiollah Shahedi Assistant Professor, Department of Physical Education & Sport Sciences, Faculty of Humanities, Parand Branch, Islamic Azad University, Parand, Tehran, Iran. Arezoo Kalhor آزاد اسلامی Masoumeh Hashemi Islamic Azad University, Tehran, Ira Mahsa Shirazi Islamic Azad University, Tehran, Iran Faeze Gholami Exercise Physiology 2024 9 20 <p><strong>Background:</strong> Aerobic exercise causes muscle damage and inflammation. The aim of this study was to examine the effect of whey supplementation on some indicators of muscle damage in elite soccer players.</p> <p><strong>Materials and Methods:</strong> A semiexperimental study was conducted on 18 male football players from the national youth football team (16-18 years old) who took part in the training camp and were divided into two experimental and placebo groups. The experimental group consumed 25 grams of whey protein supplement with purity of over 90% daily for four weeks, and the control group received 25 grams of starch placebo (8). All subjects participated in the football competition camp's routine exercises. Correlated and independent t-tests were used to determine intra-group and inter-group differences. The collected data were analyzed at a significance level of p&le;0.05.</p> <p><strong>Results:</strong> The results showed that concurrent training and buttermilk consumption has a significant effect on reducing waist circumference, systolic and diastolic blood pressure, low-density protein, triglycerides and a significant increase in high-density protein in overweight girls, p&le;0.05.</p> <p><strong>Conclusion</strong>: Young athletes can use the whey supplement to speed up the recovery process to prevent muscle pain and damage after sports activities, especially eccentric activities.</p> <p class="MsoNormal"><span dir="LTR" lang="EN" style="font-size: 12.0pt; line-height: 150%; font-family: 'Times New Roman','serif'; mso-ascii-theme-font: major-bidi; mso-fareast-font-family: 'Times New Roman'; mso-hansi-theme-font: major-bidi; mso-bidi-theme-font: major-bidi; color: #1f1f1f; mso-ansi-language: EN;">&nbsp;</span></p> http://jspac.etb.iau.ir/ar/Article/Download/48215