Head-toe distance as a simple measure to evaluate amplitude of circles on pommel horse
University of Ljubljana
MetadataShow full item record
To develop scientifically-valid tools to monitor performance in practice, a critical question is what to measure. On pommel horse, the importance of fundamental skills called circles is uncontroversial, and one of the key performance qualities of circles is the amplitude of the movement. Previous studies have used joint angles or the magnitude of a body part’s trajectory to evaluate the amplitude, but we hypothesized that the distance between two points, namely a head and toes might be substituted despite its relative simplicity. This study examined the use of Head-Toe Distance (HTD) normalized by the gymnast’s body height as a simple variable to potentially evaluate the amplitude of circles. The kinematic data of circles performed by 18 elite gymnasts were collected with a Qualisys motion capture system operating at 100 Hz. HTD and its horizontal component, HTDh, were computed along with their relationships to the outcome scores given by the official judges, as well as the other amplitude variables: the horizontal diameters of shoulder and ankle trajectories; the body flexion angle; and in the rear support position, the shoulder extension angle and the head position. The results supported HTDh, rather than HTD, for its potential usage as a single variable to evaluate the amplitude of circles. The benefits of HTDh compared to the other variables lies in its potential validity despite its relative simplicity in assessment. Because computing HTDh requires only the positional data of the head and toes, it may have greater practical applications as an evaluative tool in gymnastics.
Science of Gymnastics Journal;
Fujihara, T., Gervais, P. and Irwin, G. (2019) 'Head-toe distance as a simple measure to evaluate amplitude of circles on pommel horse', Science of Gymnastics Journal, 11(2).
Article published in Science of Gymnastics Journal, freely available at: https://www.fsp.uni-lj.si/en/research/scientific-magazines/science-of-gymnastics/current-issue//.
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
- Sport Research Groups 
Showing items related by title, author, subject and abstract.
Pritchard, Jack (Cardiff Metropolitan University, 2014)Rule changes are an important aspect of sports today and it is critical to evaluate the impact of such changes. This study aimed to establish if the introduction of the own goal rule has had an effect on attacking play ...
Cai, Yuexin; Chen, Guisheng; Zhong, Xiaoli; Yu, Guangzheng; Mo, Hanjie; Jiang, Jiajia; Chen, Xiaoting; Zhao, Fei; Zheng, Yiqing (Frontiers Media, 2018-10-23)The objective was to investigate the influence of audiovisual training on horizontal sound localization and the underlying neurological mechanisms using a combination of psychoacoustic and electrophysiological (i.e., ...
Comparing the effectiveness of different 3ft guard strategies employed by international defenders when marking a shot in a game of netball Morgan, Kelly (University of Wales Institute Cardiff, 2008)The purpose of this study was to evaluate the effectiveness of different defending techniques employed by International Netball players when marking a shot at goal. Data collection was conducted through a hand notation ...