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1- Faculty of Medicine, Universitas Pendidikan Indonesia, Bandung, Indonesia. , imas_d@upi.edu
2- Faculty of Medicine, Universitas Padjadjaran, Bandung, Indonesia.
3- Faculty of Sports and Health Education, Universitas Pendidikan Indonesia, Bandung, Indonesia.
Abstract:   (64 Views)
Background. Physical exercise can lead to side effects due to the generation of free radicals, specifically during high-intensity exercise such as intermittent anaerobic swimming.
Objectives. This study aimed to investigate 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.
Methods. 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 per day and Group IV received a placebo. On the fourth day, plasma MDA level and swimming exhaustion time were measured.
Results. 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 was significantly lower than IV (p=0.000), but insignificantly lower than III (p>0.05). Exhaustion time of Group I to IV, were 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).
Conclusion. In conclusion, 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.
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APPLICABLE REMARKS
  • Exercise is beneficial for health; however, it can also lead to the development of exercise-induced oxidative stress, particularly in anaerobic intermittent types.
  • Oxidative stress induced by exercise can be mitigated by utilizing antioxidant agents.
  • Strawberries serve as effective antioxidant agents, comparable in efficacy to the well-established vitamin E.

Type of Study: Original Article | Subject: Sport Physiology and its related branches
Received: 2024/01/16 | Accepted: 2024/03/22

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