| Effects of cross-training on markers of insulin resistance/hyperinsulinemia. | |
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MedLine Citation:
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PMID: 9309627 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study examined, through a randomized controlled trial, the effects of cross-training (combined resistance and endurance exercise) on markers of insulin resistance, (e.g., dyslipidemia, intra-abdominal obesity, hyperinsulinemia, and hypertension), body composition, and performance in hyperinsulinemic individuals. Sedentary adult males characterized as hyperinsulinemic (fasting insulin > 2 OuU.mL-1), randomly assigned to two groups (N = 8 each), completed 14 wk of training at 3 d.wk-1. An endurance-only (E) group performed both continuous cycle exercise and walking (30 min each at 60-70% heart rate reserve). A cross-training (C) group performed both endurance and resistance exercise (8 exercises, 4 sets/exercise, 8-12 repetitions/set) in a single session. Both E and C groups demonstrated similar increases in VO2max (25% and 27%) while only C demonstrated an increase in 1 RM bench press (19%) and leg press (25%). The changes induced by C training were significantly greater than those from E training alone in percent fat (6.9 +/- 1.3 vs 1.4 +/- 1.4), insulin concentration (8.5 +/- 2.7 vs 3.0 +/- 1.3 uU.mL-1), glucose levels (11.1 +/- 2.9 vs 5.9 +/- 2.6 mg.dL-1), HDL-C levels (5.1 +/- 1.3 vs 2.9 +/- 1.6 mg.dL-1), triglyceride concentration (43.8 +/- 13.6 mg.dL-1), and systolic blood pressure (14.6 +/- 5.5 vs 8.3 +/- 6.8 mm Hg). Results indicate that the addition of resistance training to an endurance training program will induce significantly greater differences in markers of insulin resistance and body composition in individuals with hyperinsulinemia than endurance training alone. |
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Authors:
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M B Wallace; B D Mills; C L Browning |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 29 ISSN: 0195-9131 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 1997 Sep |
Date Detail:
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Created Date: 1997-10-30 Completed Date: 1997-10-30 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1170-5 Citation Subset: IM; S |
Affiliation:
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Human Performance Laboratory, United States Sports Academy, Daphne, AL 36526, USA. bwallace@ussa-sport.ussa.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Body Composition Exercise Therapy* Humans Hyperinsulinism / physiopathology* Insulin Resistance / physiology* Male Middle Aged Physical Endurance Physical Fitness / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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