Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strength
<p>Abstract</p> <p>Background</p> <p>Knee extensor strength and knee extension range of motion (ROM) are important predictors of physical function in patients with a total knee arthroplasty (TKA). However, the relationship between the two knee measures remains unclear....
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2013-01-01
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| Series: | BMC Musculoskeletal Disorders |
| Online Access: | http://www.biomedcentral.com/1471-2474/14/33 |
| _version_ | 1818677547600183296 |
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| author | Pua Yong-Hao Ong Peck-Hoon Chong Hwei-Chi Yeo William Tan Celia Lo Ngai-Nung |
| author_facet | Pua Yong-Hao Ong Peck-Hoon Chong Hwei-Chi Yeo William Tan Celia Lo Ngai-Nung |
| author_sort | Pua Yong-Hao |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Knee extensor strength and knee extension range of motion (ROM) are important predictors of physical function in patients with a total knee arthroplasty (TKA). However, the relationship between the two knee measures remains unclear. The purpose of this study was to examine whether changes in knee extensor strength mediate the association between changes in knee extension ROM and self-report physical function.</p> <p>Methods</p> <p>Data from 441 patients with a TKA were collected preoperatively and 6 months postoperatively. Self-report measure of physical function was assessed by the Short Form 36 (SF-36) questionnaire. Knee extensor strength was measured by handheld dynamometry and knee extension ROM by goniometry. A bootstrapped cross product of coefficients approach was used to evaluate mediation effects.</p> <p>Results</p> <p>Mediation analyses, adjusted for clinicodemographic measures, revealed that the association between changes in knee extension ROM and SF-36 physical function was mediated by changes in knee extensor strength.</p> <p>Conclusions</p> <p>In patients with TKA, knee extensor strength mediated the influence of knee extension ROM on physical function. These results suggest that interventions to improve the range of knee extension may be useful in improving knee extensor performance.</p> |
| first_indexed | 2024-12-17T09:01:06Z |
| format | Article |
| id | doaj.art-7857c9c5264540afa73bc2e6fe427c18 |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-12-17T09:01:06Z |
| publishDate | 2013-01-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-7857c9c5264540afa73bc2e6fe427c182022-12-21T21:55:42ZengBMCBMC Musculoskeletal Disorders1471-24742013-01-011413310.1186/1471-2474-14-33Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strengthPua Yong-HaoOng Peck-HoonChong Hwei-ChiYeo WilliamTan CeliaLo Ngai-Nung<p>Abstract</p> <p>Background</p> <p>Knee extensor strength and knee extension range of motion (ROM) are important predictors of physical function in patients with a total knee arthroplasty (TKA). However, the relationship between the two knee measures remains unclear. The purpose of this study was to examine whether changes in knee extensor strength mediate the association between changes in knee extension ROM and self-report physical function.</p> <p>Methods</p> <p>Data from 441 patients with a TKA were collected preoperatively and 6 months postoperatively. Self-report measure of physical function was assessed by the Short Form 36 (SF-36) questionnaire. Knee extensor strength was measured by handheld dynamometry and knee extension ROM by goniometry. A bootstrapped cross product of coefficients approach was used to evaluate mediation effects.</p> <p>Results</p> <p>Mediation analyses, adjusted for clinicodemographic measures, revealed that the association between changes in knee extension ROM and SF-36 physical function was mediated by changes in knee extensor strength.</p> <p>Conclusions</p> <p>In patients with TKA, knee extensor strength mediated the influence of knee extension ROM on physical function. These results suggest that interventions to improve the range of knee extension may be useful in improving knee extensor performance.</p>http://www.biomedcentral.com/1471-2474/14/33 |
| spellingShingle | Pua Yong-Hao Ong Peck-Hoon Chong Hwei-Chi Yeo William Tan Celia Lo Ngai-Nung Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strength BMC Musculoskeletal Disorders |
| title | Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strength |
| title_full | Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strength |
| title_fullStr | Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strength |
| title_full_unstemmed | Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strength |
| title_short | Knee extension range of motion and self-report physical function in total knee arthroplasty: mediating effects of knee extensor strength |
| title_sort | knee extension range of motion and self report physical function in total knee arthroplasty mediating effects of knee extensor strength |
| url | http://www.biomedcentral.com/1471-2474/14/33 |
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