umu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
One-leg hop more than 20 years after ACL injury: kinematic analysis of persons treated with physiotherapy with or without surgery compared to healthy controls
Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Sjukgymnastik.
Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Sjukgymnastik.
Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Sjukgymnastik. Sør-Trøndelag University College, Trondheim Norway.
Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Sjukgymnastik.ORCID-id: 0000-0002-0366-4609
(Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Nationell ämneskategori
Sjukgymnastik
Forskningsämne
sjukgymnastik
Identifikatorer
URN: urn:nbn:se:umu:diva-86714OAI: oai:DiVA.org:umu-86714DiVA, id: diva2:703224
Forskningsfinansiär
Vetenskapsrådet, K2008-70X-20845-01-3Tillgänglig från: 2014-03-05 Skapad: 2014-03-05 Senast uppdaterad: 2018-06-08Bibliografiskt granskad
Ingår i avhandling
1. Long-term consequences of anterior cruciate ligament injury: knee function, physical activity level, physical capacity and movement pattern
Öppna denna publikation i ny flik eller fönster >>Long-term consequences of anterior cruciate ligament injury: knee function, physical activity level, physical capacity and movement pattern
2014 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Knee function after more than 20 years post injury is rarely described and none of the few follow-up studies have evaluated functional performance tasks. This thesis investigated self-reported knee function, physical activity level, physical capacity and movement pattern in the long-term perspective (on average 23 years) in persons who had suffered a unilateral ACL injury, treated either with physiotherapy in combination with surgery (ACLR, n=33) or physiotherapy alone (ACLPT, n=37) and compared to age-and-gender matched controls (n=33).

 This thesis shows that regardless of treatment, there are significant negative long-term consequences on self-reported knee function and physical activity more than 20 years after injury. In comparison to the controls, the ACL-groups (ACLR and ACLPT) had lower knee function as measured by the Lysholm score and the Knee injury and Osteoarthritis Outcome Score (KOOS). The persons with an ACL injury also had a lower knee-specific physical activity level (Tegner activity scale), while no differences were seen in general physical activity level (International Physical Activity Questionnaire, IPAQ) compared to healthy controls. Regarding physical capacity, both ACL groups showed inferior jump capacity in the injured leg compared to the non-injured leg. However, compared to controls the ACL-injured had a relatively good jump performance. Knee extension peak torque, concentric and eccentric, was also lower for the injured leg compared to the non-injured leg for both ACLR and ACLPT. In addition, the ACLPT group showed reduced eccentric knee flexion torque of the injured leg. The non-injured leg, on the other hand, showed almost equal jump capacity and strength as controls. Balance in single-limb stance (30s) was inferior in persons who had an ACL injury. This was true for both the injured and non-injured leg and regardless of treatment. Movement pattern during the one-leg hop was analysed by a set of kinematic variables consisting of knee angles (flexion, abduction, rotation) and Centre of Mass (CoM) placement in relation to the knee and ankle joints. Both ACLR and ACLPT displayed movement pattern asymmetries between injured and non-injured legs. In comparison to controls, the ACLR group had a similar movement pattern with the exception of larger external knee rotation at Initial contact and less maximum internal rotation during the Landing. ACLPT showed several differences compared to controls both regarding knee angles and CoM placement. The ACL-injured persons with no-or-low knee osteoarthritis (OA) had better knee function as reflected by higher scores on Lysholm and KOOS subscale ‘symptom’ compared to those with moderate-to-high OA. The degree of OA had no influence on reported physical activity level, jump capacity, peak torque or the kinematic variables.

 In conclusion, this thesis indicates that persons with a unilateral ACL injury, regardless of treatment, have some negative long-term consequences e.g. self-reported knee function, knee-specific activity level, strength and balance deficits, when compared to age-and-gender matched controls. The results, however, also indicate that the ACL-injured can manage reasonably well in some jumps and general activity level but have an inferior performance in more knee-demanding tasks. The ACLR group had similar movement pattern with the exception of knee rotation, indicating that a reconstruction may restore the knee biomechanics to some extent. The ACLPT group on the other hand, seem to use compensatory movement strategies showing several differences compared to controls.

Ort, förlag, år, upplaga, sidor
Umeå: Umeå universitet, 2014. s. 73
Serie
Umeå University medical dissertations, ISSN 0346-6612 ; 1631
Nyckelord
ACL injury, cross-sectional design, isokinetic, peak torque, centre of pressure, kinematics
Nationell ämneskategori
Sjukgymnastik
Forskningsämne
sjukgymnastik
Identifikatorer
urn:nbn:se:umu:diva-86715 (URN)978-91-7601-005-1 (ISBN)
Disputation
2014-03-28, Aulan, Vårdvetarhuset, Umeå Universitet, Umeå, 09:00 (Svenska)
Opponent
Handledare
Forskningsfinansiär
Vetenskapsrådet, K2008-70X-20845-01-3Vetenskapsrådet, K2011-69X-21876-01-3Centrum för Idrottsforskning, P2012-0008
Tillgänglig från: 2014-03-07 Skapad: 2014-03-05 Senast uppdaterad: 2018-06-08Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Personposter BETA

Tengman, EvaGrip, HelenaStensdotter, Ann-KatrinHäger, Charlotte

Sök vidare i DiVA

Av författaren/redaktören
Tengman, EvaGrip, HelenaStensdotter, Ann-KatrinHäger, Charlotte
Av organisationen
Sjukgymnastik
Sjukgymnastik

Sök vidare utanför DiVA

GoogleGoogle Scholar

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 242 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf