[Retracted] Progress Planning Method of Strength Quality Training of Volleyball Players Based on Data Mining

Table 9

Comparison of physical fitness of athletes in each group before and after the experiment.

		50 M (s)	800 M (s)	Standing long jump (CM)	Shot put (CM)	Sit ups (times/minute)
Preliminary test of experiment	Experimental class	9.25 ± 3.52	256.65 ± 12.52	167.61 ± 10.75	455.06 ± 7.95	24.61 ± 14.32
	Control class	9.29 ± 3.48	249.12 ± 11.65	163.52 ± 12.52	456.26 ± 9.65	26.75 ± 14.25
	Mean difference	−0.6	−3.71	3.31	−4.29	−1.25
		>0.05	>0.05	>0.05	>0.05	>0.05
End of experiment	Experimental class	8.33 ± 1.25	228.32 ± 11.52	186.32 ± 9.62	535.12 ± 8.65	35.75 ± 4.85
	Control class	9.23 ± 2.65	238.65 ± 13.11	177.65 ± 10.02	508.32 ± 10.78	30.83 ± 3.35
	Mean difference	−0.98	−11.98	8.95	28.15	4.95
		<0.3	<0.05	<0.05	<0.02	<0.02