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

Table 10

Comparison of self data mean of the experimental group before and after the experiment.

Group items	Before experiment	After test	Mean difference
50 M (s)	9.25 ± 3.65	8.33 ± 1.15	0.92	>0.06
800 M (s)	245.65 ± 13.25	227.39 ± 12.20	18.95	<0.01
Standing long jump (CM)	167.32 ± 11.71	185.65 ± 9.62	19.65	<0.01
Shot put (CM)）	456.03 ± 7.85	535.12 ± 8.67	-80.08	<0.01
Sit ups (times/minute)	25.52 ± 13.65	35.79	-12.26	<0.01