期刊
JOURNAL OF INTERNATIONAL MEDICAL RESEARCH
卷 38, 期 3, 页码 782-791出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/147323001003800305
关键词
DIABETES MELLITUS TYPE 2; INSULIN RESISTANCE; RESISTANCE TRAINING; RETINOL-BINDING PROTEINS; ADIPOSE TISSUE
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.
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