| dc.creator | García-Ramos, Amador | |
| dc.creator | Pérez-Castilla, Alejandro | |
| dc.creator | Martín, Fernando | |
| dc.date | 2020-06-09T23:25:09Z | |
| dc.date | 2020-06-09T23:25:09Z | |
| dc.date | 2018-10 | |
| dc.identifier | International Journal of Sports Science & Coaching, 2018, Vol. 13(5) 737–742 | |
| dc.identifier | 1747-9541 | |
| dc.identifier | http://repositoriodigital.ucsc.cl/handle/25022009/1815 | |
| dc.identifier | 10.1177/1747954118791525 | |
| dc.description | Artículo de publicación ISI | |
| dc.description | The objective of this study was to explore the reliability and concurrent validity of the Velowin optoelectronic system to measure movement velocity during the free-weight back squat exercise. Thirty-one men (age = 27.5 ± 3.2 years; body height = 1.76 ± 0.15 m; body mass: 78.3 ± 7.6 kg) were evaluated in a single session against five different loads (20, 40, 50, 60 and 70 kg) and three velocity variables (mean velocity, mean propulsive velocity and maximum velocity) were recorded simultaneously by a linear velocity transducer (T-Force; gold-standard) and a camera-based optoelectronic system (Velowin). The main findings revealed that (1) the three velocity variables were determined with a high and comparable reliability by both the T-Force and Velowin systems (median coefficient of variation of the five loads: T-Force: mean velocity = 4.25%, mean propulsive velocity = 4.49% and maximum velocity = 3.45%; Velowin: mean velocity = 4.29%, mean propulsive velocity = 4.60% and maximum velocity = 4.44%), (2) the maximum velocity was the most reliable variable when obtained by the T-force (p < 0.05), but no significant differences in the reliability of the variables were observed for the Velowin (p > 0.05) and (3) high correlations were observed for the values of mean velocity (r = 0.976), mean propulsive velocity (r = 0.965) and maximum velocity (r = 0.977) between the T-Force and Velowin systems. Collectively, these results support the Velowin as a reliable and valid system for the measurement of movement velocity during the free-weight back squat exercise. | |
| dc.language | en | |
| dc.publisher | SAGE | |
| dc.source | https://doi.org/10.1177/1747954118791525 | |
| dc.subject | Kinematics | |
| dc.subject | Linear velocity transducer | |
| dc.subject | Motion analysis | |
| dc.subject | Resistance training | |
| dc.title | Reliability and concurrent validity of the Velowin optoelectronic system to measure movement velocity during the free-weight back squat | |
| dc.type | Article | |
