Yellow watermelon-plantain banana juice as protective factor of oxidative stress and source of energy during exercise Afina Rachma Sulistyaning (a*), Farida (a), Hesti Permata Sari (a)
a) Nutrition Science Study Programme
Universitas Jenderal Soedirman
Jln. Dr. Soeparno, Karangwangkal
*) afina.sulistyaning[at]unsoed.ac.id
Abstract
In some conditions, additional food administration prior to exercising is required to ensure glucose availability in the serum as the source of energy. Additional food must also contains antioxidant to help alleviate oxidative stress formation during exercise. This study aiming to investigate yellow watermelon-plantain juice administration prior to anaerobic exercise on blood glucose level and its protective effect on markers of oxidative stress formation. 35 male Sprague Dawley rats were divided into positive control group, negative control group, P1 (single-dose of juice), P2 (double-dose of juice), and P3 (single-dose with 0.27 grams additional granulated sugar). Blood glucose level in treatments groups were examined before juice administration, 30 minutes after juice administration, and after exercise test. Malondialdehyde level were examined after exercise test. There was a significant different of blood glucose level in treatment groups before and after exercise (p<0.05). P2 groups has the highest blood glucose level before and after exercise (111.86 mg/dl and 100.52 mg/dl). Mda level differ significantly between groups (p<0.05) with negative control group has the highest level of Mda (7.68 nmol/ml) and P2 has the lowest level among treatment groups (1.8 nmol/ml). It can be concluded that yellow watermelon-plantain juice administration prior to anaerobic exercise was an effective source of energy due to its rapid glucose availability in the serum. Antioxidant content in yellow watermelon-plantain juice effectively offer protective effect towards oxidative stress formation during exercise.
Keywords: Yellow watermelon; plantain; exercise; energy source; antioxidant
