Validation of an opto-electronic instrument for the measurement of weighted countermovement jump execution velocity
| Autor: | Abel Jiménez-Ruiz, Juan Ramón Heredia-Elvar, Guillermo Peña García-Orea, Noelia Belando-Pedreño, Juan Andrés Merino-Barrero |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Intraclass correlation Bar (music) 0206 medical engineering Transducers Physical Therapy Sports Therapy and Rehabilitation 02 engineering and technology Kinematics Plyometric Exercise Concentric Athletic Performance Constant linear velocity 03 medical and health sciences 0302 clinical medicine Task Performance and Analysis Humans Entrenamiento deportivo Orthopedics and Sports Medicine Muscle Strength Reliability (statistics) Simulation Mathematics Dispositivos optoelectrónicos Analysis of Variance Tecnología electrónica Optical Devices Reproducibility of Results Resistance Training 030229 sport sciences Deporte 020601 biomedical engineering Biomechanical Phenomena Transducer Lower Extremity Transductores Jump Exercise Test Electronics |
| Popis: | The purpose of this study was to analyse the reliability and validity of an opto-electronic sensor system (Velowin) compared to a linear velocity transducer (T-Force System) considered as the gold standard. Mean velocity (MV) and peak velocity (PV) generated in the Smith machine bar placed on the shoulders in counter-movement jump exercise (CMJ) were analysed. The study was conducted with a sample of 21 men with experience in resistance training. Five measurements were analysed for CMJ exercise in concentric phase using a progressive loading increase. Three jumps were made per load with a 3-4 min recovery between loads. The analysis of the variance confirmed that there were no significant differences (p > 0.05) in the execution velocity between Velowin and T-Force with each of the loads. The reliability analysis showed, with each of the loads, high values of the intraclass correlation coefficient (ICC = 0.95-0.99) and a 'substantial' Lin´s concordance coefficient in MV (CCC ≥0.96) and between 'substantial' (CCC = 0.98) and 'almost perfect' (CCC = 0.99) in PV. These results confirm the reliability and validity of the Velowin device is reliable for measuring the execution velocity in loaded CMJ exercise. Sin financiación 2.896 JCR (2021) Q2, 44/88 Sport Sciences 0.783 SJR (2021) Q1, 50/225 Physical Therapy, Sports Therapy and Rehabilitation No data IDR 2021 UEM |
| Databáze: | OpenAIRE |
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