Effect of an ankle–foot orthosis on gait parameters in medial knee osteoarthritis: A single-subject study.

This single-subject study evaluated the immediate, mid-term (with AFO after six weeks), and therapeutic (without AFO after six weeks) effects of an ankle–foot orthosis (AFO) with a Klenzak joint and lateral cuff on gait in women with medial knee osteoarthritis (KOA). Five participants were analyzed...

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Publicado en:Assistive Technology pp. 1 - 9
Autores principales: Hajibabaei, Fatemeh, Daryabor, Aliyeh, Arazpour, Mokhtar, Biglariyan, Akbar, Abolghasemi, Shahla
Formato: Journal Article
Publicado: Taylor & Francis Ltd May2026
Acceso en línea:Ver este registro en EBSCOhost
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      dt: May2026
      pid: 377
      pub: Taylor & Francis Ltd
      place: Philadelphia, Pennsylvania
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        10.1080/10400435.2026.2659185
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        atl: Effect of an ankle–foot orthosis on gait parameters in medial knee osteoarthritis: A single-subject study.
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        au:
          Hajibabaei, Fatemeh
          Daryabor, Aliyeh
          Arazpour, Mokhtar
          Biglariyan, Akbar
          Abolghasemi, Shahla
        affil: University of Social Welfare and Rehabilitation Sciences
      sug:
      ab: This single-subject study evaluated the immediate, mid-term (with AFO after six weeks), and therapeutic (without AFO after six weeks) effects of an ankle–foot orthosis (AFO) with a Klenzak joint and lateral cuff on gait in women with medial knee osteoarthritis (KOA). Five participants were analyzed using a 3D motion analysis system and force plate. Kinetic variables included the external knee adduction moment (EKAM), external knee flexion moment (EKFM), center of pressure (COP) displacement, and spatiotemporal parameters (cadence, stride length, speed). Descriptive statistics and individual effect sizes were used. Immediately, the AFO caused a lateral COP shift (high effect sizes in 4/5 participants) and reduced the first peak EKAM in three participants. After six weeks, mean EKAM and EKFM increased, showing variable individual responses. Therapeutically, the first peak EKAM decreased again in three participants. Most participants showed improvements in spatiotemporal parameters across evaluations. The most consistent biomechanical benefits were found in participants with neutral foot posture. These findings suggest that the AFO may offer immediate and therapeutic benefits for knee loading and gait in some individuals with KOA. However, mid-term reduction in effectiveness indicates the possible need for orthosis readjustment.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
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