運動後のラットのショ糖溶液に対する嗜好の変化が体水分及び組織グリコーゲンの回復に及ぼす影響

概要

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We investigated whether preference for sucrose solution changes after exercise and whether the change influences post-exercise recovery of body fluid and glycogen. Rats were individually housed in cages equipped with 2 bottles containing water and either a 0.4%, 2%, 4% or 8% sucrose solution. The rats had free access to the water and sucrose solution for 6h on both the day before (Pre) and the day of 2h treadmill exercise (Ex). Fluid intake was measured. We also measured tissue weight, tissue water and tissue glycogen after 6h recovery. Compared to Pre, voluntary fluid intake on Ex significantly decreased for 2% and 4% solutions, whereas it did not change for 0.4% and 8%. After 6h of fluid ingestion, the content of tissue water and glycogen was highest for 8% among the solutions. These results demonstrate that 8% was effective in rehydration and tissue glycogen recovery after exercise, since its voluntary intake did not decrease after exercise.
日本体力医学会の論文
2008-10-01