Table 4.

Subgroup analyses of systolic blood pressure.

Outcomes	Number of studies	Sample size (HIIT/MICT)	Heterogeneity test		Value of effect		Two-tailed test
			I2 (%)	P	WMD value	95%CI	Z	P
Dynamic monitoring time
Daytime	4	70/69	0	.85	−4.14	[−6.98, −1.30]	2.85	.00
Evening	4	70/70	91	.0001	−10.26	[−12.65, −7.87]	8.41	.00
Blood pressure range
Hypertension	2	42/35	0	.86	−5.24	[−11.21, 0.73]	1.72	.09
Pre-hypertension	11	182/183	0	.83	−0.47	[−2.73, 1.79]	0.40	.69
Exercise frequency
<3 times	2	32/28	0	.55	−2.06	[−7.34, 3.21]	0.77	.44
≥3 times	11	192/190	0	.67	−0.90	[−3.20, 1.40]	0.77	.44
≥5 times	2	19/19	0	.79	3.98	[−5.24, 13.20]	0.85	.40
Training cycle
<8 wk	3	33/35	0	.49	−0.10	[−4.90, 4.71]	0.04	.97
≥8 wk	10	191/183	0	.70	−1.32	[−3.66, 1.02]	1.11	.27
≥12 wk	7	120/115	0	.80	−2.32	[−5.23, 0.60]	1.56	.12
≥16 wk	4	65/63	0	.69	−1.09	[−4.68, 2.50]	0.59	.55

CI = confidence interval, HIIT = high-intensity intermittent training, MICT = moderate-intensity continuous training, WMD = weighted mean difference.