Analysis of symmetry between lower limbs during gait of older women with bilateral knee osteoarthritis
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Osteoarthritis (OA) is a common condition in older adults, with high epidemiological, clinical, and economic burden worldwide. In clinical practice, patients with knee OA often walk with abnormal gait patterns because of pain, stiffness and/or mobility dysfunctions. Therefore, assessing the symmetry of the lower limbs might improve the rehabilitation treatment and prescription of walking devices.
To compare the symmetry of step length and single support phase between lower limbs during gait of older women with bilateral knee OA and asymptomatic controls, and to verify if there is difference between these two groups in relation to velocity, cadence, step length and single support phase.
This cross-sectional study included a convenience sample of 66 community-dwelling older women aged ≥ 65 years with a medical diagnosis of symptomatic bilateral knee OA (n = 33) and asymptomatic controls (n = 33), matched by age and body mass index. All gait parameters were obtained using the GAITRite® system.
Mean age of the sample was 72.6 ± 4.0 years. Participants with OA walked with lower velocity (p = 0.001), cadence (p = 0.009) and step length bilaterally (both p = 0.001). No significant difference was found between groups in the symmetry of step length between lower limbs, single support phase and symmetry of single support phase between lower limbs.
Older women with bilateral knee OA walk with lower velocity, cadence and step length, but have the same symmetry in the step length and single support phase between lower limbs as asymptomatic older women.
KeywordsKnee osteoarthritis Gait analysis Symmetry Step length GAITRite® system Older women
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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