Association ship of selected kinematic variables with the performance of in-step kick in football of Indian football school team

Sixteen female footballer (n=16) who represented India in ISF World School Championship held at Prague, The capital of Czech Republic from 21st May to 29th May 2017 were selected as the subject for the present study and there range of mean age, mean height and mean weight was 17.5 ±.84 years, 152.8 ± 4.60 cm and 49.7 ± 6.45 kg respectively. Videography technique was employed in order to register the performance of the subjects in In – Step Kick for the study. Selected kinematics variables (table 2 and table 3) and four selected phases (Figure 1) of whole skill i.e. of Initial phase, Hip extension phase, Knee extension and ball touch phase and Follow through phase were analysed. The selected phases and the stick figures of the selected movements and the centre of gravity of different phases were located by Kinovea software. The selected angular kinematic variables were obtained at Initial phase, Hip extension phase, Knee extension and ball touch phase and Follow through phase. Angles of selected joints were measured by the help of Kinovea software at the nearest of degrees. The performance of each subject of In – Step kick was collected on the basis of three judge’s evaluation. The average of three judges was considered as the final point obtained by each footballer. Further, to easy calculation it was reduced out of ten points. The finding showed, the linear and angular kinematic variables showed significant relationship in Shoulder joint (Knee extension and ball touch phase - .954, Follow through phase - .614), Hip joint (Hip extension phase - .578) and Knee Joint ( Hip extension phase - .644) found more than the tabulated value other than that all the variables in remaining phases were less than the tabulated value. The findings of table 3 also showed significant relationship in Center of gravity at Hip extension phase (.918), Center of gravity at Knee extension and ball touch phase (.511) and Total time of execution of the skill (.941) and other remaining variables were found insignificant with the performance.