Twice-weekly progressive resistance training decreases abdominal fat and improves insulin sensitivity in older men with type 2 diabetes

被引:263
作者
Ibañez, J
Izquierdo, M
Argüelles, N
Forga, L
Larrión, JL
García-Unciti, M
Idoate, F
Gorostiaga, EM
机构
[1] Govt Navarra, Studies Res & Sports Med Ctr, Pamplona, Spain
[2] Hosp Navarra, Dept Endocrinol, Pamplona, Spain
[3] Hosp Navarra, Dept Hlth, Pamplona, Spain
[4] Univ Navarra, Dept Dietect & Dicotherapy, E-31080 Pamplona, Spain
[5] Clin San Miguel, Dept Radiol, Pamplona, Spain
关键词
D O I
10.2337/diacare.28.3.662
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
OBJECTIVE - To evaluate the influence of a twice-weekly progressive resistance training (PRT) program, without a concomitant weight loss diet, on abdominal fat and insulin sensitivity in older men with type 2 diabetes. RESEARCH DESIGN AND METHODS - Nine older men (aged 66.6 +/- 3.1) with type 2 diabetes participated in a 16-week PRT supervised program (50-80% of the one repentition maximum), for all main muscle groups. Basal glycemia, HbA(1c) diet, habitual physical activity, body composition, and upper/lower maximal strength were measured. Insulin sensitivity was determined according to Bergman's minimal model procedure and abdominal fat was obtained by computed tomography. The measurements were taken 4 weeks before training (-4) immediately before training (-4) and at 8-week intervals (i.e., weeks 8 and 16) during the 16-week training period. RESULTS - No significant variation was observed in any, of the above selected parameters during the 4 week control period. After PRT, both leg and arm maximal strength increased significantly by 17.1 and 18.2%, respectively. Visceral and Subcutaneous abdominal fat decreased significantly by 10.3% (from 249.5 +/- 97.9 to 225.6 +/- 96.6 cm(3), p < 0.01) and by 11.2% (from 356.0 +/- 127.5 to 308.6 +/- 118.8 cm(3), p < 0 01), respectively, while no changes Were observed in body mass. PRT significantly increased insulin sensitivity by 46.3% (from 2.0 +/- 1.2 to 2.8 +/- 1.6 (.) 10(4) (.) min(-1), P < 0.01), whereas it significantly decreased (-7.1%, P < 0.05) fasting blood glucose (from 146.6 +/- 28.3 to 135.0 +/- 29.3 mg/dl) Finally a 15.5% increase in energy intake (from 2,287.1 +/- 354.7 to 2,619.0 +/- 472.1 kcal/day, P < 0.05) was observed. CONCLUSIONS - Two sessions per week of PRT, without a concomitant weight loss diet, significantly improves insulin sensitivity and fasting glycemia and decreases abdominal fat in older men with type 2 diabetes.
引用
收藏
页码:662 / 667
页数:6
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