. 2023 Mar 10;14:1060216. doi: 10.3389/fphys.2023.1060216

TABLE 2.

Effects of the intervention on outcomes according to group (n = 166).

Variables	Pretest	Post-test	The mean difference (95% CI)	η_p ²
VO_2max (mL/kg/min)
B-HIIT	38.62 ± 3.36	43.14 ± 3.80#&	4.48 [3.89 to 5.07] **	0.69
R-HIIT	37.17 ± 3.43	41.32 ± 3.20#	3.34 [2.74 to 3.94] **	0.54
CON	38.56 ± 2.78	41.90 ± 3.59	0.75 [−0.173 to 1.33]	0.04
Standing broad jump (cm)
B-HIIT	168.60 ± 18.53	176.45 ± 15.55##	7.97 [5.38 to 10.55] **	0.19
R-HIIT	167.45 ± 2 5.84	175.08 ± 22.47##	7.86 [5.26 to 10.51] **	0.18
CON	167.08 ± 20.94	169.93 ± 24.48	2.25 [−0.27 to 4.77]	0.02
Vertical jump (cm)
B-HIIT	239.34 ± 12.89	247.41 ± 11.34##&&	8.10 [6.76 to 9.44] *	0.58
R-HIIT	238.28 ± 13.87	240.97 ± 14.15	2.12 [0.76 to 3.48] *	0.10
CON	242.52 ± 8.38	242.52 ± 11.13	0.05 [−1.32 to 1.33]	0.00
Handgrip strength (kg)
B-HIIT	43.91 ± 11.57	46.76 ± 11.97	4.28 [1.76 to 2.80] **	0.16
R-HIIT	42.75 ± 9.10	45.75 ± 9.59	3.14 [1.88 to 4.39] *	0.14
CON	40.14 ± 9.25	42.29 ± 10.85	2.30 [−1.76 to 4.23]	0.10
Sit-up (CPM)
B-HIIT	40.53 ± 7.67	45.43 ± 8.46#&	4.79 [3.35 to 6.39] *	0.30
R-HIIT	42.58 ± 9.13	42.15 ± 1.44	0.13 [−1.34 to 1.60]	0.00
CON	40.77 ± 9.62	41.54 ± 9.93	0.46 [−0.08 ± 1.73]	0.00
50-m sprint (s)
B-HIIT	9.12 ± 0.91	8.87 ± 0.70	−0.26 [−0.39 to −0.13] *	0.13
R-HIIT	9.30 ± 1.26	8.96 ± 0.75	−0.13 [−0.27 to −0.003] *	0.04
CON	9.15 ± 0.78	9.17 ± 1.15	−0.02 [−0.11 to 0.17]	0.00

Note: VO_2max: Maximal oxygen uptake; R-HIIT: Running-based high-intensity interval training, B-HIIT: Body weight-based high-intensity interval training. All comparisons are adjusted for sex, age, and BMI. * indicates differences in intragroup comparisons (*: p < 0.05; **: p < 0.01). # indicates intervention group compared with control group (#: p < 0.05; ##: p < 0.01). & indicates B-HIIT compared with R-HIIT (&: p < 0.05; &&: p < 0.01).