Simple assessment of height and length of flight in complex gymnastic skills: Validity and reliability of a two-dimensional video analysis software

Schärer, Christoph; von Siebenthal, Luca; Lomax, Ishbel; Gross, Micah; Taube, Wolfgang; Hübner, Klaus (2019). Simple assessment of height and length of flight in complex gymnastic skills: Validity and reliability of a two-dimensional video analysis software Applied Sciences, 9(19), p. 3975. MDPI 10.3390/app9193975

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In artistic gymnastics, the possibility of using 2D video analysis to measure the peak height (hpeak) and length of flight (L) during routine training in order to monitor the execution and development of difficult elements is intriguing. However, the validity and reliability of such measurements remain unclear. Therefore, in this study, the hpeak and L of 38 vaults, performed by top-level gymnasts, were assessed by 2D and 3D analysis in order to evaluate criterion validity and both intrarater and interrater reliability of the 2D method. Validity calculations showed higher accuracy for hpeak (±95% LoA: ±3.6% of average peak height) than for L (±95% LoA: ±7.6% of average length). Minor random errors, but no systematic errors, were observed in the examination of intrarater reliability (hpeak: CV% = 0.44%, p = 0.81; L: CV% = 0.87%, p = 0.14) and interrater reliability (hpeak: CV% = 0.51%, p = 0.55; L: CV% = 0.72%, p = 0.44). In conclusion, the validity and reliability of the 2D method are deemed sufficient (particularly for hpeak, but with some limitations for L) to justify its use in routine training of the vault. Due to its simplicity and low cost, this method could be an attractive monitoring tool for gymnastics coaches.

Item Type:	Journal Article (Original Article)
Division/Institute:	Swiss Federal Institute of Sports Magglingen SFISM > EHSM - Leistungssport > Sportphysiologie Kraft
Name:	Schärer, Christoph; von Siebenthal, Luca; Lomax, Ishbel; Gross, Micah; Taube, Wolfgang and Hübner, Klaus
ISSN:	2076-3417
Publisher:	MDPI
Language:	English
Submitter:	Service Account
Date Deposited:	01 Sep 2020 14:36
Last Modified:	03 Oct 2021 02:18
Publisher DOI:	10.3390/app9193975
Related URLs:	Publication
Uncontrolled Keywords:	two-dimensional video analysis validity reliability quantitative biomechanical parameters artistic gymnastics Leistungssport
ARBOR DOI:	10.24451/arbor.11064
URI:	https://arbor.bfh.ch/id/eprint/11064