Figure 3.

Comparison of the effects of metabolic syndrome (MS+) versus control (MS−) group on rMSSD using forest plot. Each study is represented by a green dot at the point estimate of intervention effect with a horizontal line extending either side of the dot. The area of the dot indicates the weight assigned to that study in the meta-analysis while the horizontal line depicts the confidence interval (95% level of confidence). Ma et al., 2017 [11]; Rasic-Milutinovic et al., 2010 [27]; Slušnienė et al., 2019 [30].