English abstract
The study aimed to identify the differences in vertical jump measurements by using Optojump and Takei devices. The differences (if any) in results can be amended through predictive equation.
Methodology, the study sample is involved 83 students from the Governorate of Muscat Schools. The average age is between (14.18 = 0.86). The average length is (1.64 = 0.15 cm). The weight is between (57.15 +9.53 kg). However, the study is applied at Nasser bin Rashid Al Kharousi School in three times visit. Indeed, the first and second visits are assigned to study the differences and relationships in the vertical jump results, which is applied in this study - conducting three approaches (countermovement jump arm -CMJ arm, countermovement jump -CMJ and squat jump -SJ) by using Optojump and Takei devices. By doing so, we achieve the predictive equations for all tests from Takei device to Optojump device. The third visit is assigned to the application of tests on outside and different sample. The tests are applied to the two devices for the participants in the study in order to compare the actual results and the predicted results using specific arithmetic equations.
Results: The results show that there are statistically significant differences for vertical jump tests. By using Optojump and Takei devices in the three conducts (CMJ arm, CMJ and SJ), it shows high impact on Takei device. In addition to that, there is a strong positive correlation between the vertical jump tests on two devices. Moreover, there are no statistically significant differences between the real results and predicted ones in the vertical jump tests (p<0.05).
Conclusion: The study concludes there are differences in vertical jump
