FIGURE 4.
Changes in the trunk extensor isometric test (A), trunk flexor isometric test (B), side bridge test (C), and front plank test (D) values before and after the intervention study. P-value [time, group, and interaction (time∗group)] of repeated measures analysis of variance. ∗P < 0.05, ∗∗P < 0.01, ∗∗∗P < 0.001 obtained by Student’s paired t-test. PAR, physical activity recommendations for adults proposed by the World Health Organization group; HIIT, high intensity interval training group; WB-EMS, whole-body electromyostimulation group.