- Title
- Changes in muscle activation following balance and technique training and a season of Australian football
- Creator
- Donnelly, Cyril; Elliott, Bruce; Doyle, Tim; Finch, Caroline; Dempsey, Alasdair; Lloyd, David
- Date
- 2014
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/75657
- Identifier
- vital:7391
- Identifier
-
https://doi.org/10.1016/j.jsams.2014.04.012
- Identifier
- ISSN:1440-2440
- Abstract
- Objectives: Determine if balance and technique training implemented adjunct to 1001 male Australian football players' training influenced the activation/strength of the muscles crossing the knee during pre-planned and unplanned sidestepping. Design: Randomized Control Trial. Methods: Each Australian football player participated in either 28 weeks of balance and technique training or 'sham' training. Twenty-eight Australian football players (balance and technique training, n = 12; 'sham' training, n = 16) completed biomechanical testing pre-to-post training. Peak knee moments and directed co-contraction ratios in three degrees of freedom, as well as total muscle activation were calculated during pre-planned and unplanned sidestepping. Results: No significant differences in muscle activation/strength were observed between the 'sham' training and balance and technique training groups. Following a season of Australian football, knee extensor (p = 0.023) and semimembranosus (p = 0.006) muscle activation increased during both pre-planned sidestepping and unplanned sidestepping. Following a season of Australian football, total muscle activation was 30% lower and peak valgus knee moments 80% greater (p = 0.022) during unplanned sidestepping when compared with pre-planned sidestepping. Conclusions: When implemented in a community level training environment, balance and technique training was not effective in changing the activation of the muscles crossing the knee during sidestepping. Following a season of Australian football, players are better able to support both frontal and sagittal plane knee moments. When compared to pre-planned sidestepping, Australian football players may be at increased risk of anterior cruciate ligament injury during unplanned sidestepping in the latter half of an Australian football season.
- Relation
- Journal of Science and Medicine in Sport Vol. 18, no. 3 (2014), p.348-352; http://purl.org/au-research/grants/nhmrc/565900
- Rights
- © 2014 Sports Medicine Australia.
- Rights
- Open Access
- Rights
- This metadata is freely available under a CCO license
- Subject
- ACL; Exercise; Injury prevention; Knee; Muscle; Prophylactic; 1106 Human Movement and Sports Science; 1117 Public Health and Health Services
- Full Text
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