Table 4.
Subgroup analysis of effects of HIIT vs. MICT on systolic blood pressure.
| Subgroup | Synthesis Studies/Total (%) | SMD (95% CI) | MICT | HIIT | I2 (%) | p-Value | p for Interaction |
|---|---|---|---|---|---|---|---|
| Total | 7/7 (100) | −0.64 (−1.05, −0.22) |
|
44.9 | 0.092 | ||
| Gender | 0.770 | ||||||
| Boys | 4/7 (51) | −0.58 (−0.98, −0.18) * | 0.0 | 0.009 | |||
| Both | 3/7 (49) | −0.78 (−1.83, 0.27) | 79.0 | 0.072 | |||
| Age | 0.770 | ||||||
| ≤13 years | 4/7 (51) | −0.58 (−0.98, −0.18) * | 0.0 | 0.722 | |||
| >13 years | 3/7 (49) | −0.78 (−1.83, 0.27) | 79.0 | 0.009 | |||
| Modality | 0.489 | ||||||
| Running | 5/7 (71) | −0.73 (−1.16, −0.31) * | 20.2 | 0.286 | |||
| Cycling | 2/7 (29) | −0.40 (−1.54, 0.75) | 79.5 | 0.027 | |||
| Duration | 0.876 | ||||||
| ≤8 weeks | 1/7 (14) | −0.74 (−1.65, 0.17) | - | - | |||
| >8 weeks | 6/7 (86) | −0.63 (−1.11, −0.15) * | 53.7 | 0.056 | |||
| Time | 0.794 | ||||||
| <20 min | 4/7 (71) | −0.66 (−1.38, 0.07) | 69.7 | 0.019 | |||
| 20–30 min | 1/7 (14) | −0.34 (−1.20, 0.52) | - | - | |||
| >30 min | 2/7 (25) | −0.82 (−1.40, −0.24) * | 44.9 | 0.092 | |||
| Settings | 0.493 | ||||||
| Laboratory | 5/7 (71) | −0.54 (−0.98, −0.11) * | 36.9 | 0.175 | |||
| School | 2/7 (29) | −0.98 (−2.31, 0.35) | 73.4 | 0.052 | |||
| Work/rest ratio | 0.169 | ||||||
| <1 | 2/7 (29) | −0.93 (−1.46, −0.40) * | 0.0 | 0.843 | |||
| =1 | 2/7 (29) | −0.98 (−2.31, 0.35) | 73.4 | 0.052 | |||
| >1 | 3/7 (42) | −0.26 (−0.78, 0.26) | 23.4 | 0.271 | |||
| Work duration | 0.493 | ||||||
| <1 min | 3/7 (43) | −0.96 (−1.65, −0.26) * | 47.5 | 0.149 | |||
| 1–4 min | 3/7 (43) | −0.35 (−0.95, 0.25) | 49.4 | 0.138 | |||
| =4 min | 1/7 (14) | −0.74 (−1.65, 0.17) | - | - | |||
* means that the improvement of VO2max is significantly different in this subgroup parameter.