Experimental Study On The Effect Of Combined Training Of Ladder And Small Hurdle On The Agility And Speed Of Junior Middle School Girl Students

Sensitive quality and speed quality are important components of human sports quality and important physical quality content of physical examination.Junior high school girls are in the critical period of the all-round development of physical quality.If scientific and effective intervention exercises are carried out in this period,the students' sensitive quality and speed quality will be improved rapidly.The soft ladder and the small hurdle frame have made outstanding contribution in improving the physical ability of the sportsman,have been widely recognized in the field of professional athletes training,amateur sports training and mass fitness,have its special training value,but there are few examples used to develop students' physical quality in junior high school physical education class and extracurricular activities.In this paper,55 female students in Grade 2 of Jin ya Middle School in Yuzhong were selected as the experimental group and 55 female students as the control group for 8 weeks.Before the experiment,the two groups were tested for the homogeneity of height,weight and indexes.After the experiment,the sensitivity and speed quality indexes of the two groups were tested respectively.The data of the two groups were compared and analyzed and the following conclusions were drawn:After the experiment,the sensitivity quality index of the experimental group was compared with that before the experiment: T-shaped running,4× 10 m round-trip running,showing very significant differences and the cross quadrant jump.Comparison between speed quality index and before the experiment: 30 meters between running,in situ high leg lifting showed very significant differences,the grasp ruler performance has improved but no significant difference,indicating that the combination training of small soft ladder column frame can significantly improve the sensitivity,movement speed and displacement speed of junior middle school girls.After the experiment,the sensitivity quality index of the control group was compared with that before the experiment: cross quadrant jump,4 ×10 m round-trip running and T-shaped running P values were all greater than0.05,with no significant difference.Comparison between speed quality index and before experiment: high legs,30 meters and landing ruler P were greater than 0.05,with no significant difference.It shows that the routine sports activities of the control group have a certain role on developing the sensitivity quality and speed quality of junior high school girls,but the improvement range is not large.After the experiment,the experimental group and the control group showed significant differences in the scores of the other five indexes except the grasping ruler index,which indicated that the combination training of soft ladder and small frame had a significant effect on the development of the sensitive quality and speed quality of junior high school girls.