Abstract/Details

The influence of different intensities of equal workload of resistance training on glucose uptake


2005 2005

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Abstract (summary)

The purpose of this investigation was to compare the effect of acute low- and high-intensity resistance exercise of equal work output on glucose uptake in resistance-trained males. The methods included the fifteen healthy male (22.95 ± 3.82 yrs), resistance-trained (6.73 ± 3.93 yrs) subjects, who completed three treatment sessions: CON-(no-exercise control), HI (3 x 8, 85% 10-RM), and LO (3 x 15, 45% 10-RM). The HI and LO exercise treatment sessions consisted of eight resistance exercises, with equated total workloads. Glucose uptake was measured the following morning by hyperinsulinemic euglycemic clamp technique. Glucose disposal was measured by analyzing the glucose infusion rate during the final 30 minutes of steady-state blood glucose concentrations. Insulin sensitivity was calculated by dividing the glucose infusion rate by the average insulin infusion. The results indicate that fasting blood glucose levels did not change among treatment sessions (CON = 80.49 ± 5.29 vs. HI = 77.05 ± 4.91 vs. LO = 77.12 ± 5.96 mg/Dl). Glucose uptake was not significantly different among treatment sessions (CON = 11.31 ± 3.02 vs. HI = 11.67 ± 2.68 vs. LO = 11.42 ± 2.77 mg/kgFFM/min). Insulin sensitivity did not change among treatment sessions (CON = 0.26 ± 0.09 vs. HI = 0.280 ± 0.07 vs. LO = 0.27 ± 0.06 (mg/kgFFM/min)/(uU/ml)). In conclusion, these data indicate that for acute resistance exercise bouts with an equated work volume, low- and high-intensity sessions have similar effects on glucose uptake, but are no different than a no-exercise control session in resistance-trained men. The trained status of the sample may have produced maximum exercise-induced cellular adaptations for enhanced insulin sensitivity and glucose uptake prior to the acute testing session.

Supported by the National Strength and Conditioning Association (NSCA), the Virginia Commonwealth University School of Education (VCU SOE), and the General Clinical Research Center (GCRC) (M01 RR00065, NCRR, NH) at Virginia Commonwealth University.

Indexing (details)


Subject
Sports medicine;
Physical education;
Anatomy & physiology;
Animals
Classification
0575: Sports medicine
0523: Physical education
0433: Anatomy & physiology
0433: Animals
Identifier / keyword
Health and environmental sciences; Education; Biological sciences; Glucose; Resistance training; Workload
Title
The influence of different intensities of equal workload of resistance training on glucose uptake
Author
Luebbers, Paul Edward
Number of pages
222
Publication year
2005
Degree date
2005
School code
2383
Source
DAI-B 66/05, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
0542171716, 9780542171710
Advisor
Warren, Beverly J.
University/institution
Virginia Commonwealth University
University location
United States -- Virginia
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
3177620
ProQuest document ID
305353053
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/305353053
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