en فيزيولوژی ورزشی و شاخه‌های وابسته بدان Sport Physiology and its related branches مقاله اصیل Original Article <div style="text-align: justify;"><strong>Background. </strong>Physical exercise can lead to side effects due to the generation of free radicals, specifically during high-intensity exercise such as intermittent anaerobic swimming.<br> <strong>Objectives. </strong>This study investigated the effect of strawberry ethanol extract (SEE) on reducing plasma MDA levels and prolonging the exhaustion time of male Wistar rats induced by intermittent anaerobic swimming.<br> <strong>Methods. </strong>A post-test-only experimental design was adopted, involving 40 male Westar rats divided into 4 groups and induced by intermittent anaerobic swimming for 4 days. Group I and II were given SEE of 250mg/kgBW and 500mg/kgBW per day, respectively. Meanwhile, Group III was given vitamin E of 37.5IU/kgBW daily, and Group IV received a placebo. Plasma MDA level and swimming exhaustion time were measured on the fourth day.<br> <strong>Results. </strong>The result showed that the MDA level of Groups I, II, III, and IV was 0.112 ŋmol/g (SD 0.098), 0.069 nmol/g (SD 0.038), 0.163 nmol/g (SD 0.101), and 0.434 nmol/g (SD 0.264), respectively. Among these groups, I and II were significantly lower than IV (p=0.000) but insignificantly lower than III (p>0.05). The exhaustion time of Group I to IV was 30.22 minutes (SD 3.41), 40.9 minutes (SD 6.33), 26.0 minutes (SD 3.6), and 22.5 minutes (SD 1.5), respectively. Groups I and II had significantly slower exhaustion times when compared to Group IV (p=0.000).<br> <strong>Conclusion. </strong>The study showed that SEE reduced plasma MDA level and prolonged exhaustion time of male Westar rats induced by intermittent anaerobic swimming, comparable to the effect of vitamin E.</div> Strawberry Ethanol Extract, Plasma MDA Level, Exhaustion Time, Intermittent Anaerobic Swimming. 0 0 http://aassjournal.com/browse.php?a_code=A-11-2226-2&slc_lang=en&sid=1 Imas Damayanti imas_d@upi.edu 100319475328460014741 100319475328460014741 Yes Faculty of Medicine, Universitas Pendidikan Indonesia, Bandung, Indonesia Herri S. Sastramihardja herri.sastramihardja@unisba.ac.id 100319475328460014742 100319475328460014742 No Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia Trully D. R. Sitorus truly.sitorus@gmail.com 100319475328460014743 0009-0001-0880-6733 No Faculty of Medicine, Universitas Katolik Parahyangan, Bandung, Indonesia Agus Rusdiana agus.rusdiana@upi.edu 100319475328460014744 100319475328460014744 No Faculty of Sports and Health Education, Universitas Pendidikan Indonesia, Bandung, Indonesia