Table 2.

Physical and metabolic characteristics before and after weight loss and aerobic exercise

	WL (n = 21)		AEX (n = 20)
	Pre	Post	Pre	Post
Age, y	60 ± 1	–	62 ± 2	–
Body weight, kg	102.9 ± 3.9	93.7 ± 3.5g,a	92.7 ± 3.6	91.5 ± 4.1
BMI	36 ± 1	33 ± 1c,a	32 ± 1	32 ± 1
VO2max, L/min	2.3 ± 0.1	2.3 ± 0.1a	2.4 ± 0.1	2.7 ± 0.1g
VO2max, mL/kg/min	23.0 ± 1.2	24.6 ± 1.3e,a	25.1 ± 1.1	29.2 ± 1.3e
VO2max, mL/kgFFM/min	40.0 ± 1.0	40.0 ± 1.1	41.7 ± 1.47	44.4 ± 3.0
% Body fat	44.2 ± 1.7	41.2 ± 2.0g	38.3 ± 1.8	36.9 ± 2.1d
Fat mass, kg	45.7 ± 2.5	38.9 ± 2.4g,a	36.3 ± 2.5	35.0 ± 2.9
FFM, kg	57.4 ± 2.8	55.9 ± 2.7g,a	57.6 ± 2.4	58.4 ± 2.6c
Fasting glucose, mg/dL	101 ± 3	92 ± 2g,b	96 ± 2	95 ± 2
120-min glucose, mg/dL	150 ± 10	128 ± 9e	131 ± 9	127 ± 9
Fasting insulin, pmol/L	109 ± 11	85 ± 8f	100 ± 9	90 ± 9a
120-min insulin, pmol/L	685 ± 93	472 ± 57f	595 ± 92	505 ± 56
M, μmol.kg–1.min–1	22.1 ± 2.9	31.2 ± 2.8e	31.7 ± 2.6	37.3 ± 2.8c
M, μmol.kgFFM–1.min–1	40.8 ± 4.6	55.2 ± 4.7d	52.2 ± 4.7	59.6 ± 5.1c
HOMA-IR	4.0 ± 0.5	2.8 ± 0.3e	3.4 ± 0.3	3.1 ± 0.3

All participants (n = 41) before and after the AEX (n = 20) and WL (n = 21) intervention. Values are mean ± SEM.

Abbreviations: AEX, aerobic exercise; BMI, body mass index; FFM, fat free mass; HOMA-IR, homeostatic model assessment of insulin resistance; VO₂max, maximal oxygen consumption; WL, weight loss.

Statistically significant different pre and post intervention WL vs AEX:

^a P < .001;

^b P < .05;

^c P ≤ .05;

^d P < .01;

^e P < .001;

^f P˂.005; and

^g P ≤ .0001.