Effects of Eight Weeks Elastic Band Circuit Resistance Training with Green Coffee Supplement on Hepatic Function Indices in Obese Women

Exercise training along with the use of herbs is the most effective methods for improving liver function in obese people. The purpose of this study was to investigate the effect of 8 weeks of circuit resistance elastic band training with green coffee supplement on fatty liver function indices (fatty liver index (FLI) and lipid accumulation product (LAP) in middle-aged obese women.

In this randomized clinical trial, 60 obese women (33.58±2.96) and middle aged (42.99 ± 3.08) were selected as subjects and randomly divided into four supplement (15), exercise + supplement (15), exercise+placebo (15) and placebo (15) groups. The training groups received 8 weeks of circuit resistance elastic band training at 3 sessions per week and 60 minutes each session. Also, supplement groups received a daily 400 mg capsule of green coffee extract. Blood samples were taken 24 hours before the first session and 48 hours after the last training session after 12 hours. The t-test was used to compare the intra-group and the two-way ANOVA and post-hoc bonferroni test were used for comparison between groups.

There was a significant difference between the groups after 8 weeks of intervention in the FLI index (P = 0.025) and the non-significant difference in LAP (P=0.288) between the 4 groups. The results of the bonferroni post-hoc test for FLI showed a significant reduction in this indicator in the exercise + placebo group compared to placebo group (P = 0.008).

The results of the present study show that green coffee does not have a possible potential to improve liver function indices. In general, improvement in liver function indices in obese women may require longer periods of resistance training and supplementation of green coffee.