Ethanolic extract from Rubus coreanus enhanced swimming capacity in mice

• Published in: Food science and biotechnology Vol. 24; no. 6; pp. 2213 - 2217
• Main Authors: You, Yanghee, Kim, Kyungmi, Jeong, Heesun, Park, Jeongjin, Kim, Ok-Kyung, Jun, Woojin
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Society of Food Science and Technology 01.12.2015; 한국식품과학회
• Subjects: body weight; Chemistry; Chemistry and Materials Science; energy; ethanol; Food Science; free fatty acids; fruits; glucose; glycogen; lactic acid; lipid peroxidation; malondialdehyde; mice; muscles; Nutrition; oral administration; Rubus; Rubus coreanus; swimming; triacylglycerols; 식품과학; exercise capacity; glycogen; malondialdehyde; lactate
• ISSN: 1226-7708; 2092-6456
• DOI: 10.1007/s10068-015-0295-5

Swimming enhancement effects of ethanol extract from ripe Rubus coreanus (RCE) fruits were investigated in mice. An Ex-RCE group was orally administered 1 g/kg body weight/day of RCE. An Ex-Control group received distilled water for 28 days. Exhaustive swimming times were significantly ( p <0.05) prolonged in Ex-RCE mice, compared with Ex-Control mice. Ex-RCE mice had lower lactate and higher glucose levels after exhaustive swimming. Plasma non-esterified fatty acid levels in Ex-RCE mice were significantly ( p <0.05) increased during swimming, compared with Ex-Control. Lower plasma triglyceride levels were shown in Ex-RCE mice after swimming. Ex-RCE mice exhibited higher muscle glycogen and lower malondialdehyde levels, compared with Ex-Control mice. RCE is a useful agent for enhancement of the swimming capacity and amelioration of physical fatigue via a decrease in lactate accumulation, and supply of energy sources via glycogen sparing and facilitation of fat use, and reduction of lipid peroxidation levels through swimming.