| The Effect of a Hip Strengthening Program on Mechanics During Running and During a Single Leg Squat. | |
| | |
MedLine Citation:
|
PMID: 21765220 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
STUDY DESIGN: Block randomized controlled trial. OBJECTIVES: To investigate whether a strengthening and movement education program, targeting the hip abductors and hip external rotators, alters hip mechanics during running and during a single leg squat. BACKGROUND: Abnormal movement patterns during running and single leg squatting have been associated with a number of running related injuries in females. Therapeutic interventions for these aberrant movement patterns typically include hip strengthening. While these strengthening programs have been shown to improve symptoms, it is unknown if the underlying mechanics during functional movements are altered. METHODS: Twenty healthy females with excessive hip adduction during running, determined by instrumented gait analysis, were recruited. Runners, matched based on age and running distance, were randomized to either a training group or a control group. The training group underwent a 3 times per week, 6-week hip strengthening and movement education program in addition to single leg squat training with neuromuscular reeducation consisting of mirror and verbal feedback on proper mechanics. The control group did not receive an intervention, but maintained their current running distance. Using a hand held dynamometer and standard motion capture procedures, hip strength and running and single leg squat mechanics were compared before and after the strengthening and movement education program. RESULTS: While hip abductor and external rotation strength increased significantly (p<0.005) in the training group, there were no significant changes in hip or knee mechanics during running. However, during the single leg squat, hip adduction, hip internal rotation, and contralateral pelvic drop all decreased significantly (p=0.006, p=0.006, p=0.02, respectively). The control group exhibited no changes in hip strength, nor in the single leg squat or running mechanics at the conclusion of the 6 week study. CONCLUSION: A training program that included hip strengthening and movement training specific to single leg squatting, did not alter running mechanics, but did improve single leg squat mechanics. These results suggest that hip strengthening and movement training that is not specific to running does not alter abnormal running mechanics. LEVEL OF EVIDENCE: Therapy, Level 2a. J Orthop Sports Phys Ther, Epub 12 July 2011. doi:10.2519/jospt.2011.3470. |
| | |
Authors:
|
Richard W Willy; Irene S Davis |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-7-12 |
Journal Detail:
|
Title: The Journal of orthopaedic and sports physical therapy Volume: - ISSN: 1938-1344 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
|
Created Date: 2011-7-18 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7908150 Medline TA: J Orthop Sports Phys Ther Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Biomechanical and Clinical Factors Related to Stage I Posterior Tibial Tendon Dysfunction.
Next Document: The Association Between Submaximal Quadriceps Force Steadiness and the Knee Adduction Moment During ...