This study examines the test-retest reliability of throwing performance metrics using the 1080 Sprint, a robotic device that combines linear position technology with an electric motor. The focus is on professional volleyball players with scapular dyskinesis, and the data comes from a previously published study on the effects of mirror cross exercise.
A total of 39 athletes participated, with an average age of 21.9 ± 3.6 years, height of 1.79 ± 0.3 meters, weight of 68.5 ± 19.8 kg, and body mass index of 21.3 ± 3.2 kg/m², all meeting strict inclusion criteria. Reliability measures of the 1080 Sprint device were calculated using Intraclass Correlation Coefficient (ICC).
One-sample t-tests showed no significant differences between test-retest trials. The study demonstrated outstanding reliability of the 1080 Sprint, with ICC values above 0.99 for all measured parameters, including speed, force, and power. The standard error of measurement (SEM) highlighted the high precision of the device in assessing throwing performance. Bland and Altman plots indicated minimal systematic bias across all metrics, and the minimum detectable change (MDC) values provided by the device offer coaches a useful tool to track performance improvements in volleyball players.
In conclusion, the findings confirm the 1080 Sprint as a valid and reliable tool for measuring and monitoring throwing performance in volleyball athletes.
The 1080 Sprint offers clinicians a reliable tool for accurately assessing and monitoring throwing performance in volleyball athletes, aiding in injury prevention, rehabilitation, and informed return-to-play decisions. Its precision allows for objective tracking of performance improvements, ensuring tailored and effective interventions.
Scapular Dyskinesis
1080 Sprint
