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Resistance Exercise Did Not Alter Intramuscular Adipose Tissue but Reduced Retinol-binding Protein-4 Concentration in Individuals with Type 2 Diabetes Mellitus

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Authors

Ku, Y. H.; Han, K. A.; Ahn, H.; Kwon, H.; Kim, H. C.; Min, K. W.; Koo, B. K.

Issue Date
2010-06
Publisher
FIELD HOUSE PUBLISHING LLP
Citation
JOURNAL OF INTERNATIONAL MEDICAL RESEARCH; Vol.38 3; 782-791
Keywords
DIABETES MELLITUS TYPE 2RETINOL-BINDING PROTEINSADIPOSE TISSUERESISTANCE TRAININGINSULIN RESISTANCE
Abstract
Lipid accumulation in muscle is associated with diminished insulin sensitivity. It was hypothesized that resistance exercise decreases muscular adipose tissue and reduces the level of retinol-binding protein-4 (RBP4), which is linked to adipose tissue and insulin sensitivity in diabetics. Forty-four women with type 2 diabetes were randomly assigned to three groups for a period of 12 weeks: control (asked to maintain a sedentary lifestyle); resistance exercise (elastic band exercise at moderate intensity five times per week); and aerobic exercise (walking for 60 min at moderate intensity five times per week). Subcutaneous (SCAT), subfascial (SFAT) and intramuscular (IMAT) adipose tissues at mid-thigh level were assessed using computed tomography, and RBP4 level and insulin sensitivity (fractional disappearance rate of insulin, km) were assessed before and after intervention. Changes in SCAT, SFAT, IMAT, RBP4 and km were similar among the three groups. Within-group analysis revealed that body mass index and waist circumference decreased significantly in both exercise groups, but RBP4 decreased significantly only with resistance exercise. Resistance exercise did not alter muscular adipose tissue or improve insulin sensitivity.
ISSN
0300-0605
Language
English
URI
https://hdl.handle.net/10371/77379
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