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. 2023 Sep 17;21(4):385–394. doi: 10.1016/j.jesf.2023.09.002

Table 4.

Pooled effect size estimates.

Studies Sample size** SMD 95% CI p-value I2 (%) 95% PI
Body weight (kg) 13 183 vs. 152 −0.02 −0.20; 0.24 0.988 0.0 −0.22; 0.27
BMI (kg/m2) 6 78 vs. 65 0.02 −0.31; 0.36 0.883 0.0 −0.44; 0.49
VO2max (mL/kg/min) 10 194 vs. 163 0.30 0.09; 0.52 0.005* 0.0 0.07; 0.55
Fasting blood glucose (mg/dL OR mmol/L) 6 75 vs. 46 −0.67 −1.07; −0.27 0.001* 2.1 −1.28; −0.07
Total cholesterol (mg/dL OR mmol/L) 6 80 vs. 54 −0.42 −0.78; −0.05 0.025* 0.0 −0.90; 0.06
Triglycerides (mg/dL OR mmol/L) 6 83 vs. 53 −0.08 −0.44; 0.28 0.661 0.0 −0.55; 0.39

BMI, body mass index; VO2 max, maximum oxygen consumption; SMD, standard mean difference (effect size). ** HIIT vs. CONT; *p < 0.05.