File(s) under permanent embargo

Reliability and variability of day-to-day vault training measures in artistic gymnastics

journal contribution
posted on 01.06.2010, 00:00 authored by E Bradshaw, P Hume, M Calton, Brad AisbettBrad Aisbett
Inter-day training reliability and variability in artistic gymnastics vaulting was determined using a customised infra-red timing gate and contact mat timing system. Thirteen Australian high performance gymnasts (eight males and five females) aged 11-23 years were assessed during two consecutive days of normal training. Each gymnast completed a number of vault repetitions per daily session. Inter-day variability of vault run-up velocities (at -18 to -12 m, -12 to -6 m, -6 to -2 m, and -2 to 0 m from the nearest edge of the beat board), and board contact, pre-flight, and table contact times were determined using mixed modelling statistics to account for random (within-subject variability) and fixed effects (gender, number of subjects, number of trials). The difference in the mean (Mdiff) and Cohen's effect sizes for reliability assessment and intra-class correlation coefficients, and the coefficient of variation percentage (CV%) were calculated for variability assessment. Approach velocity (-18 to -2 m, CV = 2.4-7.8%) and board contact time (CV = 3.5%) were less variable measures when accounting for day-to-day performance differences, than pre-flight time (CV = 17.7%) and table contact time (CV = 20.5%). While pre-flight and table contact times are relevant training measures, approach velocity and board contact time are more reliable when quantifying vaulting performance.

History

Journal

Sports biomechanics

Volume

9

Issue

2

Pagination

79 - 97

Publisher

Routledge

Location

Oxfordshire, England

ISSN

1476-3141

eISSN

1752-6116

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2010, Routledge