Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Improving Effects of Multigrain Feed on Endurance

혼합곡 식이의 지구력 향상 효과

  • Received : 2011.09.26
  • Accepted : 2011.11.03
  • Published : 2011.12.31
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Abstract

This study evaluated the effect of multigrain supplementation on exercise-related changes in running time and glycogen storage capacity of male SD rats engaged in treadmill exercise. Thirty-six 6-week-old rats were divided into six groups: normal (Nor) fed normal feed, control (Con) fed with 20% normal feed and 80% milled rice, test group one (GI) fed with multigrain feed I, test group two (GII) fed with multigrain feed II, test group three (GIII) fed with multigrain feed III, and test group four (GIV) fed with multigrain feed IV. Endurance tests by treadmill machine were administered after 24 days of multigrain feed supplementation and adaptive training. Running time was extended and glycogen storage capacity increased in the multigrain-treated group compared to the non-treated group. Also, the fatigue indicators of inorganic phosphorous, CPK, and lactate concentration were all reduced in the multigrain feed group compared to the control group after 25 min and/or exhausted exercise. But there was no difference in GOP, GTP, lactate, or LDH concentrations between the groups. Our results demonstrated that endurance improved with multigrain feed in rats. Specifically, running time, glycogen storage capacity, inorganic phosphorous, CPK, and lactate serum concentration increased. Importantly, the improvements in endurance brought about in the GII group fed with waxy barley was the greatest among the experimental groups.

본 연구에서는 4주간 혼합곡 식이를 공급하여 treadmill을 통한 운동시간과 glycogen 저장능력 변화를 관찰함으로써 지구력 개선에 대한 평가를 하였다. 7주령 SD rats은 정상군 (Nor, 정상식이, n=6), 대조군(Con, 20% 정상식이+80% milled rice, n=6), GI(혼합곡 식이 I, n=6), GII(혼합곡 식이 II, n=6), GIII(혼합곡 III, n=6)와 GIV(혼합곡 식이 IV, n=6)으로 임의 군배정을 하였다. 지구력 시험은 24일간의 적응훈련과 혼합곡 식이 공급을 한 후 실시하였다. 운동 지속시간과 glycogen 저장능력은 혼합곡 식이 공급에 의해서 증가하였다. 더욱이 25 min 운동 그리고/또는 탈진 시까지의 운동 후에서 혈액 내 무기질 인, CPK와 lactate의 농도는 혼합곡 투여에 의하여 감소하였으나, GOP, GTP, lactate LDH의 농도는 군간 차이는 보이지 않았다. 본 연구에서는 4주간의 혼합곡 식이가 운동 지속 시간과 glycogen 장 능력이 증가되었으며, 피로물질인 무기질 인, CPK와 lactate의 농도가 감소시킴으로써 지구력 개선에 도움을 줄 것으로 생각된다.

Keywords

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