Does increasing step width alter knee biomechanics in medial compartment knee osteoarthritis patients during stair descent?

Max R. Paquette, Songning Zhang, Clare E. Milner, Gary Klipple

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background: Research shows that one of the first complaints from knee osteoarthritis (OA) patients is difficulty in stair ambulation due to knee pain. Increased step width (SW) has been shown to reduce first and second peak internal knee abduction moments, a surrogate variable for medial compartment knee joint loading, during stair descent in healthy older adults. This study investigates the effects of increased step width (SW) on knee biomechanics and knee pain in medial compartment knee OA patients during stair descent. Methods: Thirteen medial compartment knee OA patients were recruited for the study. A motion analysis system was used to obtain three-dimensional joint kinematics. An instrumented staircase was used to collect ground reaction forces (GRF). Participants performed stair descent trials at their self-selected speed using preferred, wide, and wider SW. Participants rated their knee pain levels after each SW condition. Results: Increased SW had no effect on peak knee abduction moments and knee pain. Patients reported low levels of knee pain during all stair descent trials. The 2nd peak knee adduction angle and frontal plane GRF at time of 2nd peak abduction moment were reduced with increasing SW. Conclusions: The findings suggest that increases in SW may not influence knee loads in medial compartment knee OA patients afflicted with low levels of knee pain during stair descent.

Original languageEnglish (US)
Pages (from-to)676-682
Number of pages7
JournalKnee
Volume21
Issue number3
DOIs
StatePublished - Jan 1 2014
Externally publishedYes

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Knee Osteoarthritis
Biomechanical Phenomena
Knee
Pain
Knee Joint
Walking
Joints

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

Cite this

Does increasing step width alter knee biomechanics in medial compartment knee osteoarthritis patients during stair descent? / Paquette, Max R.; Zhang, Songning; Milner, Clare E.; Klipple, Gary.

In: Knee, Vol. 21, No. 3, 01.01.2014, p. 676-682.

Research output: Contribution to journalArticle

Paquette, Max R. ; Zhang, Songning ; Milner, Clare E. ; Klipple, Gary. / Does increasing step width alter knee biomechanics in medial compartment knee osteoarthritis patients during stair descent?. In: Knee. 2014 ; Vol. 21, No. 3. pp. 676-682.
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