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Hip Posterolateral Musculature Strengthening in Sedentary Females With Patellofemoral Pain Syndrome: A Randomized Controlled Clinical Trial With 1-Year Follow-Up.
MedLine Citation:
PMID:  22951491     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:"; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} STUDY DESIGN: Randomized controlled trial. BACKGROUND: Recent studies have shown that a hip strengthening program reduces pain and improves function in individuals with patellofemoral pain syndrome (PFPS). However there are no clinical trials evaluating long-term outcomes of this type of program compared to conventional knee strengthening and stretching exercises. OBJECTIVE: To determine if adding hip strengthening exercises to a conventional knee exercise program produces better long-term outcomes than conventional knee exercises alone in women with PFPS. METHODS: Fifty-four sedentary females between 20 and 40 years of age and a diagnosis of unilateral PFPS were randomly assigned to a knee exercise (KE) or a knee and hip exercise (KHE) group. The women in the KE group (N=26; mean age 23 years) performed a 4-week conventional knee stretching and strengthening program. The women in the KHE group (N=28; mean age 22 years) performed the same exercises as those in the KE group as well as strengthening exercises for the hip abductors, lateral rotators, and extensors. An 11-point numerical pain rating scale (NPRS), lower extremity functional scale (LEFS), anterior knee pain scale (AKPS), and single hop test were used as outcome measures at baseline (pre-treatment) and at 3, 6, and 12 months post-treatment. RESULTS: At baseline, demographic, pain, and functional assessment data were similar between groups. Those in the KHE group had a higher level of function and less pain at 3, 6, and 12-month compared to baseline (P<0.05). In contrast, the KE group had reduced pain only at the 3 and 6-month follow-up (P<0.05), without any changes in LEFS, AKPS, or hop testing (P>0.05) through the course of the study. Compared to the KE group, the KHE group had less pain and better function at 3, 6, and 12-months post-treatment (P<0.05). The between-group mean differences, favoring the KHE group, for LEFS at 3, 6, and 12 months post-treatment were 22.0, 22.0, and 20.8, respectively. CONCLUSION: Knee stretching and strengthening exercises supplemented by hip posterolateral musculature strengthening exercises were more effective than knee exercises alone in improving long-term function and reducing pain in women with PFPS. LEVEL OF EVIDENCE: Therapy, Level 1. J Orthop Sports Phys Ther, Epub 2 August 2012. doi:10.2519/jospt.2012.4184.
Authors:
Thiago Yukio Fukuda; William Pagotti Melo; Bruno Marcos Zaffalon; Flavio Marcondes Rossetto; Eduardo Magalhães; Flavio Fernandes Bryk; Robroy L Martin
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-2
Journal Detail:
Title:  The Journal of orthopaedic and sports physical therapy     Volume:  -     ISSN:  1938-1344     ISO Abbreviation:  J Orthop Sports Phys Ther     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-9-6     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:  -    
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