Effects of Resistance Training and Soy Isoflavone on Body Composition in Postmenopausal Women

Table 2

Effects of soy (ISO) and/or exercise (RT) on body composition (fat and muscle mass) in the study groups at baseline and at 9 months (mean ± SD).

Variables	RT+ISO	RT+P	NoRT+ISO	NoRT+P
	(𝑛=15)	(𝑛=18)	(𝑛=20)	(𝑛=18)
MM (Kg)
Baseline	34.0±6.2	30.3±4.1	34.0±4.2	33.6±4.0
After 9 months	34.6±6.1	30.6±3.7	33.2±3.8	33.1±4.1
ANOVA (p)
ISO × Time	0.61
RT × Time	<0.01
Interaction	0.19
Limb-MM (kg)
Baseline	13.6±2.8	12.0±1.9	13.7±2.0	13.6±2.0
After 9 months	14.2±2.9	12.3±1.9	13.7±2.2	13.4±1.9
ANOVA (p)
ISO × Time	0.05
RT × Time	<0.00
Interaction	0.67
MM (%)
Baseline	52.2±4.5	54.3±4.2	51.2±6.2	51.0±5.1
After 9 months	52.4±4.8	54.3±5.0	50.0±6.0	50.3±5.6
ANOVA (p)
ISO × Time	0.79
RT × Time	0.04
Interaction	0.48
Trunk fat mass (kg)
Baseline	14.3±4.4	12.3±3.2	15.8±5.4	14.8±4.4
After 9 months	15.4±5.3	12.9±3.7	17.2±6.1	16.7±5.6
ANOVA (p)
ISO × Time	0.96
RT × Time	0.04
Interaction	0.28
Whole-body fat mass (kg)
Baseline	31.1±10.3	24.8±6.2	32.2±9.7	31.3±8.8
After 9 months	31.8±10.0	25.6±7.4	33.8±10.7	32.8±9.2
ANOVA (p)
ISO × Time	0.94
RT × Time	0.12
Interaction	0.85
Body fat (%)
Baseline	46.2±4.9	43.0±4.4	46.8±6.7	46.5±5.7
After 9 months	45.6±5.1	43.8±5.8	48.4±6.8	48.0±6.1
ANOVA (p)
ISO × Time	0.25
RT × Time	0.02
Interaction	0.20