Login (DCU Staff Only)
Login (DCU Staff Only)

DORAS | DCU Research Repository

Explore open access research and scholarly works from DCU

Advanced Search

Movement variability in those with and without athletic groin pain during a running cut task

Gore, Shane orcid logoORCID: 0000-0002-3077-2787, Franklyn-Miller, Andrew orcid logoORCID: 0000-0002-7826-2209, Richter, Chris orcid logoORCID: 0000-0001-6017-1520, King, Enda, Falvey, Eanna and Moran, Kieran orcid logoORCID: 0000-0003-2015-8967 (2019) Movement variability in those with and without athletic groin pain during a running cut task. In: 24th Annual Congress of the European College of Sport Science, 3-6 July 2019, Prague, Czech Republic.

INTRODUCTION: Athletic groin pain (AGP) is a common injury, typically associated with sports involving repetitive agility tasks. Given the association between repetitive loading and chronic overuse injuries such as AGP, there has been a growing interest in the functional role movement variability may have with respect to injury (1). The aim of this study was to investigate if the magnitude of variability differed between those with and without AGP across the total waveform of the analysed variables. METHODS: Twenty AGP patients and twenty recreationally active male field sports athletes were recruited to this study. Each participant attended the lab on one occasion and completed 7 trials of a 110° cutting action. Motion and force data were captured using 10 Vicon Bonita cameras and 2 AMTI force plates at a sampling frequency of 200 Hz and 1000 Hz, respectively. Data were filtered at 15 Hz and normalised to 101 data points. A modified vector coding approach was utilised to calculate the co-ordination between joints (2). Variability was calculated for both joint angles and the co-ordination between every joint of the lower limbs, trunk and pelvis using the between-trial standard deviation or the circular equivalent for the coordination data. A statistical curve analysis was performed using one-dimensional statistical non-parametric mapping (3) and rank rank-biserial correlation (RBC) was presented as a standardised measure of effect. Only phases of 3% or longer were considered as true differences (4). RESULTS: Ankle dorsi/plantar flexion (79-93%, RBC = 0.51), Thorax abd/adduction – Hip flex/extension (88-93%, RBC = 0.65) and Pelvis abd/adduction – Hip flex/extension (88-93%, RBC = 0.57) variability were all significantly less in the AGP group in comparison to the uninjured group (p <0.01). In contrast Pelvis flex/extension variability (36-63%,70-84%, RBC =0.49) was significantly greater in the uninjured group in comparison to the AGP group (p <0.01). CONCLUSION: The results from this study indicate that AGP patients are characterised by reduced movement variability in comparison to uninjured controls for three out of the four significantly different variables identified. While causality cannot be determined from the current study, it is possible that reduced variability represents a risk factor for AGP due to repetitive loading on the pubic symphysis region. AGP rehabilitation may, therefore, benefit from ’over-loading’ variability by emphasising the use of a large number of degrees of freedom to encourage the exploration of new movement strategies by the neuromuscular system. While this rehabilitation should be conducted utilising whole-body movements, future research should investigate which rehabilitation exercises best target the variability at the joints affected by AGP.
Item Type:Conference or Workshop Item (Invited Talk)
Event Type:Conference
Subjects:Medical Sciences > Biomechanics
DCU Faculties and Centres:UNSPECIFIED
Official URL:https://www.stk-sport.co.uk/images/sports-science-...
Copyright Information:© 2019 The Authors
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:This study was funded by the Sports Surgery Clinic as an industrial partner of Insight Centre for Data Analytics, Dublin City University, and Science Foundation Ireland (SFI). Grant Number: SFI/12/RC/2289
ID Code:23591
Deposited On:06 Aug 2019 12:47 by Shane Gore . Last Modified 12 Aug 2020 17:08

Full text available as:

[thumbnail of ECSS abstract_GoreS2019.pdf]
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader


Downloads per month over past year

Archive Staff Only: edit this record