Maximum velocity during loaded countermovement jumps obtained with an accelerometer,linear encoder and force platform: A comparison of technologies |
| |
| Institution: | 1. Department of Sports, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid, Madrid, Spain;2. Department of Sports and Computer, Faculty of Physical Activity and Sport Sciences, Universidad Pablo de Olavide, Sevilla, Spain;3. Department of Human Motricity and Sports Performance, Faculty of Education Sciences, Universidad de Sevilla, Sevilla, Spain;1. Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, UK;2. Department of Psychology, University of Minnesota, Minneapolis, MN, USA;3. School of Statistics, University of Minnesota, Minneapolis, MN, USA;4. School of Physiotherapy and Exercise Sciences, Curtin University, GPO Box U1987, Perth, WA 6845, Australia;1. Biomechanics Laboratory, Center of Sports, Federal University of Santa Catarina, Santa Catarina, Brazil;2. Faculty of Science and Technology, London Sport Institute, Middlesex University, London, United Kingdom;1. School of Health and Sport Sciences (EUSES), Universitat de Girona, Salt, Catalonia, Spain;2. Blanquerna Faculty of Psychology, Education Sciences and Sport (FPCEE), Universitat Ramon Llull, Barcelona, Spain;3. Florida International University, College of Nursing and Health Sciences, Department of Athletic Training, Miami, FL, USA;4. Pennsylvania State University, Department of Kinesiology, Athletic Training/Sports Medicine Program, University Park, PA, USA;5. Blanquerna School of Health Sciences, Universitat Ramon Llull, Barcelona, Spain;6. Division of Sports Medicine, Cincinnati Children''s Hospital Medical Center, Cincinnati, OH, USA;7. Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, USA;8. Center for Cognition, Action & Perception, Department of Psychology, University of Cincinnati, Cincinnati, OH, USA;9. Sports Health and Performance Institute, Ohio State University, Sports Medicine, Ohio State University Medical Center, Columbus, OH, USA;10. Micheli Center for Sports Injury Prevention, Waltham, MA, USA;1. Laboratory of Neuromechanics, Federal University of Pampa, Uruguaiana, RS, Brazil;2. Department of Physical Therapy, Technological Education Institute of Thessaloniki, Thessaloniki, Greece;3. Discipline of Physiotherapy, Faculty of Health Sciences, University of Sydney, Lidcombe, NSW, Australia;4. Orthopaedic Sports Medicine Center of Ioannina, Department of Orthopaedic Surgery, School of Medicine, Ioannina, Greece |
| |
| Abstract: | The maximum velocity (Vmax) reached during countermovement jumps (CMJ) has been considered a performance indicator to evaluate vertical jump ability. The aim of this study was to compare Vmax during loaded CMJ (CMJloaded) using three different technologies to show a criterion for selecting the more appropriate depending on its use. Nine recreationally active men performed a CMJloaded test. Five jumps were made in each of 6 series with a 20- kg barbell + 0, + 5, + 10, + 15, + 20 and + 25 kg, with 2 seconds rest between the jumps and 5 minutes rest between the series to explore a wide range of speeds. Vmax was obtained from force platform, inertial device and linear encoder technologies. Bland-Altman plots and mean differences were used to compare devices. Reproducibility was tested using the intraclass correlation coefficient (ICC) for single measures and typical error (TE). All technologies showed high levels of reproducibility, ICC higher than 0.75 and TE lower than 10 %. There were non-significant differences in Vmax between each pair of technologies (linear encoder 2.11 ± 0.24 m·s-1, accelerometer 2.11 ± 0.26 m·s-1, force platform 2.12 ± 0.24 m·s-1) reporting a very low bias. However the limits of agreement between the different technologies evaluated were high (± 0.33 m·s-1). In conclusion, the accelerometer, linear encoder and force platform were suitably reliable to be used to measure Vmax during loaded vertical jumps but their values were not interchangeable. |
| |
| Keywords: | Jump Kinematics Performance Technological tools |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
