Table 2.

Baseline and change scores for DI, AIRg, S_i, metabolic variables, body weight, and body composition variables by group

n (men/women)	Control			Low amount/moderate intensity			Low amount/vigorous intensity			High amount/vigorous intensity
	58 (30/28)			57 (30/27)			58 (33/25)			64 (38/26)
	Baseline	Change	P	Baseline	Change	P	Baseline	Change	P	Baseline	Change	P
DI (× 10−5 min−1)	1,562 ± 1,444	−65 ± 893	NS	1,270 ± 1,147	742 ± 1,680	0.002	1,533 ± 1,362	255 ± 1,023	0.063	1,305 ± 1,121	255 ± 688	0.004
AIRg (pmol/l)	490.6 ± 431	22 ± 233	NS	457.3 ± 334	−10 ± 207	NS	445.5 ± 353	−43 ± 216	0.14	505.6 ± 427	−77 ± 218	0.007
Si (× 10−5 min/pmol)	3.5 ± 2.1	−0.35 ± 1.7	0.12	3.1 ± 2.2	1.7 ± 2.5	<0.0001	3.7 ± 2.1	0.8 ± 1.8	0.001	3.2 ± 2.5	1.1 ± 2.1	<0.0001
Fasting glucose (mg/dl)	91 ± 11	3.2 ± 8	0.005	94 ± 9	−0.1 ± 9	NS	93 ± 8	1.2 ± 9	NS	94 ± 10	0.5 ± 10	NS
Fasting insulin (μU/ml)	8.5 ± 4.3	0.9 ± 3.3	0.04	10.3 ± 8.1	−2.5 ± 5.6	0.002	8.8 ± 5.9	−1.5 ± 4.1	0.008	9.6 ± 5.6	−1.3 ± 3.3	0.002
HOMA (mg/dl × μU/ml)	2.0 ± 1.2	0.28 ± 0.8	0.011	2.5 ± 1.9	−0.58 ± 1.4	0.003	2.1 ± 1.6	−0.36 ± 1.1	0.014	2.3 ± 1.4	−0.30 ± 0.9	0.009
Triglycerides (mg/dl)	147 ± 71	5 ± 43	NS	171 ± 108	−35 ± 76	0.002	143 ± 67	−16 ± 49	0.02	155 ± 84	−21 ± 50	0.002
Body mass (kg)	88 ± 14	0.88 ± 2.4	0.007	87 ± 15	−0.81 ± 2.4	0.012	88 ± 13	−0.96 ± 2.3	0.003	88 ± 13	−0.15 ± 2.7	<0.0001
Visceral fat (cm2)	163 ± 66	13 ± 29	0.003	174 ± 77	−2.1 ± 30	NS	158 ± 56	−4.6 ± 36	NS	168 ± 72	−12 ± 35	0.018
Vo2 peak (ml · kg−1 · min−1)	27 ± 6	−0.7 ± 2	0.03	27 ± 6	1.8 ± 2	<0.0001	29 ± 6	3.4 ± 3	<0.0001	28 ± 5	5.0 ± 3	<0.0001

Data are means ± SD. Homeostasis model assessment (HOMA) [(fasting glucose × fasting insulin)/22.5] (indicator of insulin sensitivity during fasting conditions). NS, P > 0.30 and therefore not significant. All other P values (< 0.30) are shown.