Introduction: Lower limb joint injuries are among the factors affecting the performance of athletes during their career. In the meantime, the anterior cruciate ligament knee injury puts a lot of athletes at risk. Studies suggest that most anterior cruciate ligament injuries occur following non-contact incidents and technical landing errors have been in the spotlight of research. The objective of this study was to compare some of knee joint kinematics parameters in landing after squat jump with and without using TRX suspension system.
Methodology: 22 male basketball player participated in the study. In order to record three-dimensional movements, six optoelectronic camera motion analyzer with a frequency of 200 Hz sampling was used. All three-dimensional kinematics of the lower limbs and knee joint during squat jump and landing protocol after it was recorded. The raw data after applying Butterworth low-pass filter with a frequency of 8 Hz modulation and then processed by an Excel file and then transferred to MATLAB software were entered into SPSS version 23. The paired t-test to determine the difference between variables were then used in two modes jump and landing.
Results: There was a significant difference in the maximum knee flexion during landing after squat jump with TRX suspension system compared without TRX (p=0.001). Also knee valgus and knee internal rotation during landing after squat jump with TRX compared without TRX showed significant difference (p=0.001).
Discussion: Using TRX suspension system will probably great control to athlete during landing after squat jump which seems to training squat jump with TRX, maximum flexion occur on knee. Also knee valgus and internal rotation will great decrease that controlling of these biomechanical factor probably to cause prediction and reduction of risk factor in anterior cruciate ligament’s injuries.