Intravenous glucose tolerance test-derived glucose effectiveness in strength-trained humans.
The effect of long-term strenuous resistance training on glucose effectiveness (SG) was examined by comparing 11 strength-trained and 20 sedentary males by a minimal model approach. Lean body mass (LBM) was measured by hydrostatic weighing. The LBM in strength-trained subjects (65.7 +/- 3.1 kg) was significantly larger than in sedentary subjects (56.6 +/- 1.2 kg, P < .01). The glucose disappearance constant ([KG] 3.07% +/- 0.45% min(-1)) and insulin sensitivity ([SI] 17.5 +/- 2.0 x 10(-5) x min(-1) x pmol/L(-1)) in strength-trained subjects were significantly higher than in sedentary subjects (2.06% +/- 0.14% x min(-1) and 10.3 +/- 1.2 x 10(-5) x min(-1) x pmol/L(-1), P < .05). SG in strength-trained subjects (0.024 +/- 0.003 min(-1)) was significantly higher than in sedentary subjects (0.018 +/- 0.001 min(-1), P < .05). These results thus suggest that the improved glucose tolerance in strength-trained subjects was due to increased SG and SI.
Laboratory of Exercise Physiology, Faculty of Sports and Health Science, Fukuoka University, Japan.
J
J
Fujitani
Y
Y
Higaki
T
T
Kagawa
M
M
Sakamoto
A
A
Kiyonaga
M
M
Shindo
A
A
Taniguchi
Y
Y
Nakai
K
K
Tokuyama
H
H
Tanaka
D000328:Adult; D001786:Blood Glucose / Q000378:metabolism*; D001823:Body Composition / Q000502:physiology; D005080:Exercise Test; D005951:Glucose Tolerance Test; D006801:Humans; D007328:Insulin / Q000097:blood; D008297:Male; D008954:Models, Biological; D010101:Oxygen Consumption; D010807:Physical Endurance / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology*; D014891:Weight Lifting / Q000502:physiology
D001786:Blood Glucose; D007328:Insulin