Pharmacy, Health Sciences & Exercise Science
Event Title
The Impact of Exercise on Glucose Clearance
Document Type
Oral Presentation
Location
Indianapolis, IN
Subject Area
Pharmacy, Health Sciences & Exercise Science
Start Date
11-4-2014 10:15 AM
End Date
11-4-2014 11:45 AM
Sponsor
Bryant Stamford (Hanover College)
Description
Introduction: The purpose of the present study was to investigate the effects of exercise intensity and duration, the timing of exercise, and magnitude of glucose load on rate of glucose clearance from the bloodstream.
Methods: One 22-year old male engaged in ten randomly assigned experimental trials plus two baseline trials. All trials included an oral glucose tolerance test (OGTT). Rate of glucose clearance from the bloodstream as influenced by each treatment was determined. Experimental trials examined the impact of exercise intensity (moderate versus low) and the duration of exercise (20 minutes versus 40 minutes). In all trials, total work output was identical. Experimental trials also examined the impact of timing of exercise, with exercise ending prior to ingestion at 60, 30 and 0 minutes prior. In addition, post-ingestion exercise was examined. Also, magnitude of load was examined with loads of 50 versus 100 grams of glucose. Following ingestion of glucose, blood samples were obtained via the fingerstick method every 12 minutes for one hour.
Results and Discussion: Data collection is ongoing at present. However, pilot data suggests that exercise enhanced blood glucose clearance, indicated by calculations of area under the curve. Low intensity exercise was more effective than moderate intensity exercise. Exercise completed one hour prior to glucose ingestion was most effective.
The Impact of Exercise on Glucose Clearance
Indianapolis, IN
Introduction: The purpose of the present study was to investigate the effects of exercise intensity and duration, the timing of exercise, and magnitude of glucose load on rate of glucose clearance from the bloodstream.
Methods: One 22-year old male engaged in ten randomly assigned experimental trials plus two baseline trials. All trials included an oral glucose tolerance test (OGTT). Rate of glucose clearance from the bloodstream as influenced by each treatment was determined. Experimental trials examined the impact of exercise intensity (moderate versus low) and the duration of exercise (20 minutes versus 40 minutes). In all trials, total work output was identical. Experimental trials also examined the impact of timing of exercise, with exercise ending prior to ingestion at 60, 30 and 0 minutes prior. In addition, post-ingestion exercise was examined. Also, magnitude of load was examined with loads of 50 versus 100 grams of glucose. Following ingestion of glucose, blood samples were obtained via the fingerstick method every 12 minutes for one hour.
Results and Discussion: Data collection is ongoing at present. However, pilot data suggests that exercise enhanced blood glucose clearance, indicated by calculations of area under the curve. Low intensity exercise was more effective than moderate intensity exercise. Exercise completed one hour prior to glucose ingestion was most effective.