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> 한국스포츠정책과학원(구 한국스포츠개발원) > International Journal of Applied sports sciences (IJASS) > 22권 2호

Effects of Eurycoma Longifolia Jack Supplementation on Recreational Athletes` Endurance Running Capacity and Physiological Responses in the Heat

Effects of Eurycoma Longifolia Jack Supplementation on Recreational Athletes` Endurance Running Capacity and Physiological Responses in the Heat

( Ayu Suzailiana Muhamad ) , ( Cheon Chee Keong ) , ( Ooi Foong Kiew ) , ( Mohd Rusli Abdullah ) , ( Chan Kit Lam )

- 발행기관 : 한국스포츠정책과학원(구 한국스포츠개발원)

- 발행년도 : 2010

- 간행물 : International Journal of Applied sports sciences (IJASS), 22권 2호

- 페이지 : pp.1-19 ( 총 19 페이지 )


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논문제목
초록(외국어)
This study investigated the effects of supplementation of the nutraceutical product Eurycoma longifolia Jack on recreational athletes` endurance running capacity and physiological responses in the heat. Twelve Malaysian healthy male recreational athletes (Age: 23.3 (3.7) years old; VO2max: 45.1 (8.1) ml.kg-1.min-1) were recruited in this double blind, placebo-controlled, cross-over study. Subjects completed two endurance running trials in the heat (31°C, 70% relative humidity), performed on separate days, after consuming either 2 capsules of Eurycoma longifolia Jack (75 mg per capsule) or a placebo per day for 7 days before and one hour prior to the experimental trial. On trial day, after 5 minutes of warm-up at 50 % VO2max, the subjects were requested to run on the treadmill at 60 % VO2max for 60 minutes. This was immediately followed by a 20-minute time trial for determining endurance running capacity. Blood samples were taken before warm up, after warm-up, and every 20 minutes during the trial. Statistical analysis was performed using one-way ANOVA with repeated measures. Results showed that the endurance running capacity of E. longifolia was not significantly different from that of the placebo trial. Similarly, oxygen uptake, heart rate, skin temperature, tympanic temperature, ratings of perceived exertion, haemoglobin concentration, haematocrit level, plasma glucose concentration, and plasma free fatty acid concentration were not significantly different between the trials. These findings suggested that supplementation of the E. longifolia product at a dosage of 150 mg.day-1 for 7 days has not provided beneficial effects on endurance running capacity and physiological responses of recreational athletes in the heat. Higher dosage and longer duration of supplementation of the product may be warranted to evaluate further its endurance capacity during exercise.

논문정보
  • - 주제 : 예체능분야 > 체육학
  • - 발행기관 : 한국스포츠정책과학원(구 한국스포츠개발원)
  • - 간행물 : International Journal of Applied sports sciences (IJASS), 22권 2호
  • - 발행년도 : 2010
  • - 페이지 : pp.1-19 ( 총 19 페이지 )
  • - UCI(KEPA) : I410-ECN-0102-2012-690-001726797
저널정보
  • - 주제 : 예체능분야 > 체육학
  • - 성격 : 학술지
  • - 간기 : 반년간
  • - 국내 등재 : KCI 등재
  • - 해외 등재 : -
  • - ISSN : 1598-2939
  • - 수록범위 : 1999–2019
  • - 수록 논문수 : 313