Kinematic differences among the players/repetitions and between the gender in regard to right (Dominant) Leg lunges exercise for lower extremities with 15 RM load
Umesh KR Ahlawat, Nisha Yadav, Dhananjoy Shaw
The aim of this study was to compare among players, repetitions and gender kinematically in regard to dominant leg lunges exercise (DLLE) for lower extremities with fifteen repetitions maximum (15 RM) load. The delimited variables were temporal variables and angle variables of DLLE. The study was conducted on ten subjects (five male and five female), weight of the subject was 68.1±14.98 kilogram and age ranged from 17 to 25 years. Each subject had performed DLLE with 15 RM load for 15 repetition. Data was collected using two dimensional digital video recording systems for 2D analysis (Kinovea 0.8.21). Collected data was computed with mean, standard deviation, coefficient of variance, ‘t’ test and analysis of variance. The selected variables for the study were Maximum Knee Flexion Repetition Wise (MKFR), Maximum Knee Extension Repetition Wise (MKER), Time Taken for Downward Movement Repetition Wise (TTDMR), Time Taken for Upward Movement Repetition Wise (TTUMR) and Total Time Taken Repetition Wise (TTTR). The coefficient of variance (C.V.) that is comparison among the players of each repetitions independently reflected homogeneity in respect to variable namely MKER (C.V. ranged from 6.27% to 7.94% in 15 repetitions) but heterogeneity for the remaining variables namely MKFR (C.V. ranged from 11.53% to 17.31% in 15 repetitions), TTDMR (C.V. ranged from 13.68% to 55.15% in 15 repetitions), TTUMR (C.V. ranged from 18.07% to 37.5%in 15 repetitions), and TTTR (C.V. ranged from 17.24% to 35.81% in 15 repetitions). The comparison between male and female demonstrated significant difference in regard to MKFR (‘t’ = -4.719), MKER (‘t’ = -14.156), TTUMR (‘t’ = -2.386) and no difference in regard to TTDMR (‘t’ = -1.159) and TTTR (‘t’ = -1.943). Analysis of variance (i.e. comparison among the repetitions) of DLLE variables namely MKFRM (F=0.103), MKERM (F=0.568), TTDMRM (F=0.781), TTUMRM (F=0.554), TTTRM (F=0.842), MKFRF (F=0.108), MKERF (F=0.239), TTDMRF (F=0.458), TTUMRF (F=0.463) and TTTRF (F=0.358) were statistically insignificant at 0.05 level of significance. From the findings it is concluded that the comparison (C.V.) among the players demonstrated homogeneity in regard to angle variable namely MKER but heterogeneity for variables namely MKFR, TTDMR, TTUMR, and TTTR. There was gender difference in regard to selected angle and temporal variables namely MKFR, MKER and TTUMR and no difference in regard to temporal variables namely TTDMR and TTTR. From the analysis of variance it is concluded that DLLE are consistent for 15 repetitions in regard to all the selected variables.
Umesh KR Ahlawat, Nisha Yadav, Dhananjoy Shaw. Kinematic differences among the players/repetitions and between the gender in regard to right (Dominant) Leg lunges exercise for lower extremities with 15 RM load. International Journal of Yoga, Physiotherapy and Physical Education, Volume 2, Issue 6, 2017, Pages 51-56