Chromium is involved in normal glucose metabolism. To test whether chromium is also associated with the exercise-induced increases in glucose utilization, urinary chromium excretion, serum glucose, insulin, and glucagon of nine male runners (23–46 yr) were evaluated. Blood samples were taken prior to, immediately following, and 2 h after a strenuous 6-mile run. Urine samples were also taken at these times, and total daily urine collections were made the day of the run and the following day. Mean serum glucose for all runners immediately after running was 185 ± 19 mg/dl compared with 90 ± 1 mg/dl (mean ± SE) prior to running. Mean serum glucagon immediately after running was significantly elevated compared with that observed prior to or 2 h after running; serum insulin levels were not altered significantly. Mean urinary chromium concentration was increased nearly five-fold 2 h after running; similar results were obtained when chromium concentration was expressed per mg of creatinine. Total daily urinary Cr excretion was approximately two times higher the day of running compared with the following nonrun day. Daily urinary excretion of sodium, potassium, and calcium were measured to determine if exercise had a general nonspecific effect on renal function; daily urinary excretion of these was not changed by exercise. These data demonstrate that accompanying the exercise-induced changes associated with increased glucose utilization, there is a significant increase in chromium excretion.
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Original Contributions|
March 01 1982
Effect of Exercise (Running) on Serum Glucose, Insulin, Glucagon, and Chromium Excretion
Richard A Anderson;
Richard A Anderson
Beltsville Human Nutrition Research Center, Vitamin and Mineral Nutrition Laboratory
Beltsville, Maryland 20705
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Marilyn M Polansky;
Marilyn M Polansky
Beltsville Human Nutrition Research Center, Vitamin and Mineral Nutrition Laboratory
Beltsville, Maryland 20705
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Noella A Bryden;
Noella A Bryden
Beltsville Human Nutrition Research Center, Vitamin and Mineral Nutrition Laboratory
Beltsville, Maryland 20705
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Edward E Roginski;
Edward E Roginski
Beltsville Human Nutrition Research Center, Vitamin and Mineral Nutrition Laboratory
Beltsville, Maryland 20705
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Kristine Y Patterson;
Kristine Y Patterson
Beltsville Human Nutrition Research Center, Vitamin and Mineral Nutrition Laboratory
Beltsville, Maryland 20705
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Donald C Reamer
Donald C Reamer
Beltsville Human Nutrition Research Center, Vitamin and Mineral Nutrition Laboratory
Beltsville, Maryland 20705
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Address reprint requests to Dr. Richard A. Anderson, Beltsville Human Nutrition Research Center, Building 307, Room 224, Beltsville, Maryland 20705.
Diabetes 1982;31(3):212–216
Article history
Received:
May 18 1981
Revision Received:
November 09 1981
Accepted:
November 09 1981
PubMed:
6759238
Citation
Richard A Anderson, Marilyn M Polansky, Noella A Bryden, Edward E Roginski, Kristine Y Patterson, Donald C Reamer; Effect of Exercise (Running) on Serum Glucose, Insulin, Glucagon, and Chromium Excretion. Diabetes 1 March 1982; 31 (3): 212–216. https://doi.org/10.2337/diab.31.3.212
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