EFFECT OF A SINGLE BOUT OF RESISTANCE EXERCISE ON POSTPRANDIAL GLUCOSE AND INSULIN RESPONSE THE NEXT DAY IN HEALTHY, STRENGTH-TRAINED MEN

• Published in: Journal of strength and conditioning research Vol. 21; no. 2; pp. 487 - 491
• Main Authors: ANDERSEN, EIVIND, HØSTMARK, ARNE T.
• Format: Journal Article
• Language: English
• Published: United States National Strength and Conditioning Association 01.05.2007; Lippincott Williams & Wilkins Ovid Technologies
• Subjects: Adult; Area Under Curve; Blood Glucose - metabolism; Dietary Carbohydrates - administration & dosage; Dietary Carbohydrates - pharmacology; Exercise; Exercise - physiology; Glucose; Humans; Insulin - blood; Kinases; Male; Muscular system; Nutrition; Postprandial Period; Risk Factors; Statistics, Nonparametric
• ISSN: 1064-8011; 1533-4287
• DOI: 10.1519/r-20105.1

Postprandial blood glucose and insulin levels are both risk factors for developing obesity, type-2 diabetes, and coronary heart diseases. To date, research has shown that a single bout of moderate-to high-intensity aerobic exercise performed ≤24 hours before a carbohydrate ingestion has a positive effect on the postprandial glucose and insulin response, but the reports on the effect of a single bout of resistance exercise are scarce. The purpose of this study was to examine if a bout of resistance exercise performed 14 hours before ingestion of a carbohydrate-rich meal might reduce the postprandial increment in blood glucose and plasma insulin concentration. Ten healthy, strength-trained, young men participated in a meal and resistance exercise experiment. All subjects ingested a carbohydrate-rich meal (1 g carbohydrate per kg body weight) after fasting for 12 hours either with no exercise the preceding 3 days or after a bout of resistance exercise performed 14 hours earlier. Blood glucose and plasma insulin were measured every 15 and 30 minutes, respectively, for 2 hours. The postprandial blood glucose response measured as the peak value, the slope (from time 0 to peak value), and the incremental area under the curve 0–60 min (IAUC0–60 min) was significantly (p ≤ 0.05) reduced 14 hours after the resistance exercise compared with the control experiment (no exercise). However, total IAUC was not significantly influenced by a bout of previous resistance exercise. Also, the plasma insulin response did not differ between the 2 experiments. From the present study it would appear that a bout of resistance exercise can reduce the post-prandial glucose elevation for at least 14 hours.