Sex Moderated Mediation of the Musculoskeletal Fitness in Relationship between High-Intensive Interval Training Performing during Physical Education Classes and Cardiorespiratory Fitness in Healthy Boys and Girls

Table 4

Mediation effects: direct and components (in the model).

Test	Effect		SE	95% CI
ABS	Direct	2.974	0.762	1.481–4.467	3.90	0.001
	Components:
	HIIT⇒ABS	2.283	0.659	0.990–3.575	3.460	<0.001
	ABS⇒CRF	0.303	0.122	0.063–-0.543	2.470	0.013
FL	Direct	1.462	0.782	-0.071	2.995	0.062
	Components:
	HIIT⇒ABS	4.181	1.019	2.185 6.178	4.100	<0.001
	ABS⇒CRF	0.196	0.079	0.041–0.352	2.480	0.013

: estimate regression; SE: standard error of the regression; CI: confidence coefficient index; HIIT: high-intensity interval training; CRF: cardiorespiratory fitness; ABS: sit-ups test; FL: sit-and-reach test.