Reliability and validity of My Jump 2 app to measure the vertical jump in visually impaired five-a-side soccer athletes.

BACKGROUND

Although consistently presented excellent values of reliability and validity when compared to force platforms (FPs) and contact mats, to date no scientific investigation assessed the validity and reliability of to measure jump height in visually impaired five-a-side soccer athletes. Thus, the study aimed at analyzing the validity and reliability of the to measure the vertical jump of five-a-side soccer athletes.

METHODS

Twelve visually impaired five-a-side soccer athletes, volunteered for this study. Each player performed five countermovement jumps (CMJs) and squat jumps (SJs) on a contact platform (CP) while they were simultaneously recorded using .

RESULTS

There was almost perfect agreement between the and the contact platform measurements of CMJ (intraclass correlation coefficient = 0.99; < 0.001) and SJ (intraclass correlation coefficient = 0.99; < 0.001), heights for athletes during the first and second measurement days. analysis showed a bias of 0.25 ± 0.5 cm; maximum SD = 1.3; minimum SD = -0.88 for CMJ, while that analysis showed bias 0.18 ± 0.5 cm; maximum SD = 1.3; minimum SD = -0.96, for SJ.

CONCLUSION

We can conclude that the is a valid and reliable method to measure CMJ and SJ in visually impaired five-a-side soccer athletes.