Knee joint movements in subjects without knee pathology and subjects with injured anterior cruciate ligaments.
BACKGROUND AND PURPOSE: Although weight-bearing (WB) exercise and increased hamstring muscle activity may contribute to knee joint stability in knees with an injured anterior cruciate ligament (ACL), the relationship among ACL integrity, muscle activity, and joint surface motion is not fully underst...
| Publicado en: | Physical Therapy Vol. 82; no. 10; pp. 960 - 973 |
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| Autores principales: | , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Oxford University Press / USA
Oct2002
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=106796476&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106796476 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00319023 PTH jtl: Physical Therapy issn: 00319023 maglogo: N pubinfo: dt: Oct2002 vid: 82 iid: 10 pid: 10398 pub: Oxford University Press / USA artinfo: ui: 106796476 2003016737 10.1093/ptj/82.10.960 NLM12350211 106796476 ppf: 960 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Knee joint movements in subjects without knee pathology and subjects with injured anterior cruciate ligaments. aug: au: Hollman JH Deusinger RH Van Dillen LR Matava MJ affil: Assistant Professor, Dept of Physical Therapy, Clarke College, 1550 Clarke Dr, Dubuque, IA 52001-3198; John.Hollman@clarke.edu sug: subj: Knee Joint Physiopathology Anterior Cruciate Ligament Physiopathology Kinematics Weight-Bearing Muscle, Skeletal Physiopathology Muscle Contraction Electromyography Case Control Studies Intraclass Correlation Coefficient Data Analysis Software Analysis of Variance T-Tests Adult Female Male Funding Source Human Adult: 19-44 years Female Male ab: BACKGROUND AND PURPOSE: Although weight-bearing (WB) exercise and increased hamstring muscle activity may contribute to knee joint stability in knees with an injured anterior cruciate ligament (ACL), the relationship among ACL integrity, muscle activity, and joint surface motion is not fully understood. The purpose of this study was to investigate whether knee joint rolling and gliding movements and electromyographic (EMG) activity differed between subjects with injured ACLs and subjects without knee pathology. SUBJECTS: Fifteen subjects with injured ACLs (9 men and 6 women; mean age=26 years, SD=7, range=18-36) and 15 age- and sex-matched subjects without knee pathology (9 men and 6 women; mean age=25 years, SD=6, range=18-36) participated in the study. METHODS: Sagittal-plane knee joint rolling and gliding movements and lower-extremity EMG activity were measured during non-weight-bearing (NWB) and WB movements. Mixed-model analyses of variance were conducted to analyze rolling and gliding and EMG data. RESULTS: During NWB knee extension, greater joint surface gliding occurred in knees with injured ACLs at full knee extension. During WB knee extension, greater gliding occurred in knees with injured ACLs throughout the range of motion tested. No differences in EMG activity occurred between groups. DISCUSSION AND CONCLUSION: The results suggest that, in the absence of increased hamstring muscle activity, anterior tibial displacement is not reduced in knees with injured ACLs during WB movement. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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