Comparison of kinetic parameters among combat sports during countermovement jump: an observational study

Abstract

Background: Countermovement jump (CMJ) is significant measure of physical fitness when assessing athlete performance. It closely mimics the movements utilized in gameplay & is frequently used in field evaluation for strength and power training. Aim: To investigate the differences in the force impulse, velocity and time parameters during CMJ in combat sports (Judo & Taekwondo). Method: 12 athletes were divided into two groups Group A: judo (age: 21.5 ± 2.94 years; body height: 174.71 ± 8.55 cm; weight: 70.78 ± 4.45 kg; body mass index (BMI): 23.1 ± 1.55 kg/m2) and Group B: Taekwondo athletes (age: 19.5 ± 1.04 years; body height: 169.91 ± 4.45; weight: 63.25 ± 4.45 kg; BMI: 21.93 ± 1.41 kg/m2). After the specific warm up session, 3 repetitions of CMJ were recorded for each athlete. Kinetic data acquisition was performed using forceplate (Quattro Jump Type 9290DD portable Performance Analysis System − Kistler). Results: Raw data was evaluated by the SPSS V.26. The statistical independent t-test showed significant difference in kinetic variations of force impulse, velocity and time parameters during CMJ among both the combat sports groups. Results showed the significant (p < 0.05), yet diverse changes in various kinetics parameters while comparing both the groups and group A showed higher force impulse as compared to group B. Conclusion: This study showed there is a considerable difference in force impulse parameters among Judo group but in velocity & time a parameter there were no significant change on comparison of both the groups.