Altered Ankle-Muscle Activation during Jump Landing in Participants with Functional Instability of the Ankle Joint
| Autor: | Tomas E. Ward, Angela O’Sullivan, Brian Caulfield, Tara Crammond, Susan Reynolds |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
medicine.medical_specialty
Functional instability business.industry Rehabilitation Biophysics Motor control Physical Therapy Sports Therapy and Rehabilitation Context (language use) Muscle activation medicine.disease_cause Jumping medicine.anatomical_structure medicine Peroneus longus Physical therapy Orthopedics and Sports Medicine Ankle business Jump landing |
| Zdroj: | Journal of Sport Rehabilitation. 13:189-200 |
| ISSN: | 1543-3072 1056-6716 |
| Popis: | Context:Identification of motor control deficit associated with Functional Instability (FI) of the ankle joint.Objective:T o compare patterns of ankle muscle activation during jump landing in participants with FI and a control group.Design:Cross-sectional comparison.Setting:Research laboratory.Participants:Twelve participants with FI (6 m, 6 f; age, 26.4 ± 4.6 years) and 10 control subjects (5 m, 5 f; age 24.9 ± 2.5 years).Main Outcome Measures:Integrated electromyographic (IEMG) activity of ankle musculature in the 150-millisecond period immediately prior to and post impact during 2 different jump landing activities.Results:Participants with FI demonstrated a significant reduction in pre-impact peroneus longus IEMG activity during both jumping activities compared to controls (P < .05). There were no significant differences between the groups’ soleus or tibialis anterior IEMG activity during the pre- or post-impact periods.Conclusions:These results help to further our understanding of changes in control of ankle movement during dynamic activity in participants with FI. |
| Databáze: | OpenAIRE |
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