Journal article
A simple method for quantifying jump loads in volleyball athletes
Journal of Science and Medicine in Sport, Vol.20(3), pp.241-245
2017
Abstract
Objectives Evaluate the validity of a commercially available wearable device, the Vert, for measuring vertical displacement and jump count in volleyball athletes. Propose a potential method of quantifying external load during training and match play within this population. Design Validation study. Methods The ability of the Vert device to measure vertical displacement in male, junior elite volleyball athletes was assessed against reference standard laboratory motion analysis. The ability of the Vert device to count jumps during training and match-play was assessed via comparison with retrospective video analysis to determine precision and recall. A method of quantifying external load, known as the load index (LdIx) algorithm was proposed using the product of the jump count and average kinetic energy. Results Correlation between two separate Vert devices and three-dimensional trajectory data were good to excellent for all jump types performed (r = 0.83-0.97), with a mean bias of between 3.57-4.28 cm. When matched against jumps identified through video analysis, the Vert demonstrated excellent precision (0.995-1.000) evidenced by a low number of false positives. The number of false negatives identified with the Vert was higher resulting in lower recall values (0.814-0.930). Conclusions The Vert is a commercially available tool that has potential for measuring vertical displacement and jump count in elite junior volleyball athletes without the need for time-consuming analysis and bespoke software. Subsequently, allowing the collected data to better quantify load using the proposed algorithm (LdIx). © 2016 Sports Medicine Australia
Details
- Title
- A simple method for quantifying jump loads in volleyball athletes
- Authors
- Paula Charlton (Author) - Australian Institute of SportC Kenneally-Dabrowski (Author) - Australian Institute of SportJ Sheppard (Author) - Surfing Australia AIS Elite Athlete ProgramW Spratford (Author) - Australian Institute of Sport
- Publication details
- Journal of Science and Medicine in Sport, Vol.20(3), pp.241-245
- Publisher
- Elsevier Australia
- DOI
- 10.1016/j.jsams.2016.07.007
- ISSN
- 1440-2440
- Organisation Unit
- University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
- Language
- English
- Record Identifier
- 99450709502621
- Output Type
- Journal article
Metrics
391 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- Web Of Science research areas
- Sport Sciences
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites