Fig. 6From: Combined extracts of Garcinia mangostana fruit rind and Cinnamomum tamala leaf supplementation enhances muscle strength and endurance in resistance trained malesEffect of GMCT supplementation on free testosterone level in the circulation of resistance-trained participants. a Bars represent mean ± SD of free testosterone concentrations in placebo (n = 15) and GMCT (n = 16) groups at baseline and post-intervention. b Bars represent mean ± SD of changes from baseline free testosterone concentrations in placebo and GMCT groups at post-intervention. * indicates significance in an unpaired t-testBack to article page