Purpose To develop the regression equation with the help of step wise method in linear regression. Material and methods In this study, 150 boy's gymnasts from National Sports Academy in Allahabad (India) (age 6+4 years; height 102+46; body weight 22+8) had participated and they provided informed consent before the testing procedure. Over Grip Hang on Horizontal Bar, Bridge up test, Leg Raise Forward, Front Split, Shuttle Run on Floor Exercise, Beam Walk Test, and Flexed Arm Hang on Horizontal Bar were selected as the testing variables and after using the liner regression analysis Results The equation was formed which estimates that Beam walk test, Shuttle run on Floor Exercise, Over grip hang on Horizontal, and Flexed arm hang on Horizontal bar account for 41% of the variation in the relation of dependent variables (Gymnastics Performance). Conclusion A thorough study of the factors that foster gymnast growth is essential since it is crucial in gymnastics to identify potential early in a player's career [16, 17, 22], for that extracted factors and gymnastics performance were selected to form the regression equation. The four variables selected to create the regression equation which explains 41 % of the total variability which is quite good and valid for estimating the Gymnastics Performance. Conclusion A thorough study of the factors that foster gymnast growth is essential since it is crucial in gymnastics to identify potential early in a player's career [16, 17, 22], for that extracted factors and gymnastics performance were selected to form the regression equation. The four variables selected to create the regression equation which explains 41 % of the total variability which is quite good and valid for estimating the Gymnastics Performance.

In the present study twelve female footballer (n=12) were selected by purposive sampling and they were further divided into two groups. Video graphy was employed for the biomechanical kinematics analysis of In -Step Kick. The camera that was used for this study was a standard Nikon -D 5200 camera was used. The whole skill were divided into four phases i.e. Initial phase, Hip extension phase, Knee extension and ball touch phase and Follow through phase but for the present study the investigator compare the two groups at the movement of Hip extension phase that whether there is any significant difference among in two groups or not, Comparison of kinematical variables of in-step kick in football with the accordance of skill level were obtained by employing the Independent T Test technique by using SPSS (20.0) and for testing the hypothesis the level of significance was set at 0.05.It is hypothesized that there is no significant difference among two groups. The finding of the study shows only there was a significant difference in knee joint among two groups, t (10) = -7.706, p = .000 is much lesser then 0.05 and the remaining variables i.e. Shoulder joint, Hip joint, Center of gravity and the performance were found no significant difference among the two groups and with that the investigator is 95% confidant that the two groups were significantly different in knee joint at the phase of hip extension and the null hypothesis is failed to accept at 0.05 level of significance.

sBr J Sports Med 2010;44(Suppl I):i1-i82 i60