Table 2.

Results of a test of the combined effect of different types of sport skill exercise on executive function interventions

Categories	Outcome variables	Heterogeneity test		Combined effects test
		I 2	P	SMD	95%CI	Z	P
Open skills	Inhibitory control	91.8%	< 0.001	-0.942	(-1.290, -0.594)	5.30	< 0.001
	Working memory	93.0%	< 0.001	-0.833	(-1.220, -0.447)	4.22	< 0.001
	Cognitive flexibility	94.1%	< 0.001	-1.116	(-1.658, -0.575)	4.04	< 0.001
Closed skills	Inhibitory control	94.9%	< 0.001	-0.524	(-0.957, -0.091)	2.37	0.018
	Working memory	96.5%	< 0.001	-0.539	(-1.158, 0.080)	1.71	0.088
	Cognitive flexibility	94.8%	< 0.001	-0.854	(-1.353, -0.356)	3.36	0.001
Continuous skills	Inhibitory control	97.2%	< 0.001	-0.450	(-1.203, 0.303)	1.17	0.242
	Working memory	97.6%	< 0.001	-0.048	(-1.002, 0.905)	0.10	0.921
	Cognitive flexibility	96.3%	< 0.001	-1.124	(-1.863, -0.384)	2.98	0.003
Sequential skills	Inhibitory control	88.3%	< 0.001	-0.834	(-1.090, -0.578)	6.39	< 0.001
	Working memory	92.0%	< 0.001	-0.889	(-1.224, -0.554)	5.20	< 0.001
	Cognitive flexibility	94.1%	< 0.001	-0.903	(-1.375, -0.403)	3.76	< 0.001