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Journal article
Effect of a combined inversion and plantarflexion surface on ankle kinematics and EMG activities in landing
Journal of sport and health science, v 4(4), pp 377-383
01 Dec 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Purpose: The purpose of this study was to examine the effects of landing on a combined inversion and plantarflexion surface on the ankle kinematics and electromyographic (EMG) activities of medial gastrocnemius (MG), peroneus longus (PL), and tibialis anterior (TA) muscles.
Methods: Twelve recreational athletes performed five drop landings from an overhead bar of 30 cm height on to three surfaces: a flat surface, a 25 degrees inversion surface, and a combined surface of 25 degrees inversion and 25 degrees plantarflexion. The kinematic variables and integrated EMG (IEMG) of the three muscles were assessed using a one-way repeated measures ANOVA and a 3 x 3 (surface x muscle) ANOVA, respectively (p < 0.05).
Results: The IEMG results showed a significant muscle by surface interaction. The flat surface induced higher TA activity than the two tilted surfaces. The inverted surface produced significantly higher inversion peak angle and velocity than the flat surface, but similar PL activity across the surfaces. The MG IEMG, ankle plantarflexion angle, and inversion range of motion were significantly higher for the combined surface compared to the inverted surface.
Conclusion: These findings suggest that compared to the inversion surface, the combined plantarflexion and inversion surface seems to provide a more unstable surface condition for lateral ankle sprains during landing. (c) 2014 Production and hosting by Elsevier B.V. on behalf of Shanghai University of Sport.
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Details
- Title
- Effect of a combined inversion and plantarflexion surface on ankle kinematics and EMG activities in landing
- Creators
- Divya Bhaskaran - University of MinnesotaMichael Wortley - Georgian Court UniversityQingjian Chen - University of Maryland, College ParkClare E. Milner - Drexel UniversityEugene C. Fitzhugh - University of Tennessee at KnoxvilleSongning Zhang - University of Tennessee at Knoxville
- Publication Details
- Journal of sport and health science, v 4(4), pp 377-383
- Publisher
- Shanghai Univ Sport
- Number of pages
- 7
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physical Therapy (and Rehabilitation Sciences)
- Web of Science ID
- WOS:000368609700012
- Scopus ID
- 2-s2.0-85006201148
- Other Identifier
- 991019168132704721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Hospitality, Leisure, Sport & Tourism
- Sport Sciences