The effects of glycerol ingestion on body water distribution and exercise performance

摘要: Water movement in the body is determined by osmotic forces acting on cell membrane. Ingestion of a highly-hypertonic glycerol solution resulting high extracellular osmolality could drive water out intracellular space into vascular reduced muscle hydration and increased blood volume. The aim this thesis was to study effects altered distribution during exercise. In chapter 3, ingestion 400 ml (1 g·kg-1 mass) serum (309 mosmol·kg-1) which associated with 4.0% increase volume due 7.2% plasma volume, attributed shift from space, presumably tissue dehydration. Glycerol then used as means altering other studies described thesis. Altered had no acute effect force production quadriceps isometric exercise (chapter 4), or handgrip strength 5). Regarding chronic 5), two groups participants exercised initiated recovery after either placebo over period 8 weeks. Maximum both there statistically significant difference between groups. In chapters 6 7, subjects performed cycling protocol fatigue. trial, time fatigue decreased compared iso-osmotic trial an incremental VO2max test 6) against constant load at 100% intensity 7). accelerated lactate potassium 7), indicating metabolism may have contributed early development