Analysis of the accuracy and reliability of vertical jump evaluation using a low-cost acquisition system

Background The vertical jump can be analyzed based on the flight time achieved by the individual. This measurement can be obtained using a force platform or a three-dimensional infrared camera system, but such equipment is expensive and requires training for data collection and processing. Thus, thi...

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Bibliographic Details
Published in:BMC sports science, medicine & rehabilitation medicine & rehabilitation, 2023-09, Vol.15 (1), p.1-107, Article 107
Main Authors: Caseiro-Filho, Luis C, Girasol, Carlos E, Rinaldi, Mateus L, Lemos, Tenysson W, Guirro, Rinaldo R. J
Format: Article
Language:English
Subjects:
Accuracy
Applications software
Athletic ability
Athletic performance
Biomechanics
Cameras
Evaluation
Free software
ICC
Jumping
Laboratories
Physiological aspects
Reproducibility
Sample size
Smart phones
Smartphones
Software
Variables
Video analyses
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Summary:Background The vertical jump can be analyzed based on the flight time achieved by the individual. This measurement can be obtained using a force platform or a three-dimensional infrared camera system, but such equipment is expensive and requires training for data collection and processing. Thus, this study aimed to evaluate the accuracy and reliability of using a smartphone and the Kinovea software compared with a force platform as a method of vertical jump analysis. Methods For this purpose, two independent evaluators analyzed videos of bipodal and unipodal vertical jumps by counting the variables among participants. The participants performed three consecutive jumps in bipodal and unipodal conditions with the dominant and non-dominant legs. Results The intra-rater analysis for bipodal jumps was found to have excellent reproducibility (ICC = 0.903 to 0.934), whereas for unipodal jumps, the reproducibility was moderate to excellent (ICC = 0.713 to 0.902). The inter-rater analysis showed that for bipodal jumps, the reproducibility is substantial to excellent (ICC = 0.823 to 0.926), while for unipodal jumps, it is moderate (ICC = 0.554 to 0.702). Conclusions Therefore, it can be concluded that the vertical jump evaluation can be performed using the smartphone-Kinovea system. However, the same evaluator should carry out the evaluation to maintain reliable indices. Keywords: Video analyses, Biomechanics, Free software, ICC, Athletic performance
ISSN:2052-1847
2052-1847
DOI:10.1186/s13102-023-00718-z