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Article

Self-Reported Walking Difficulty Associated with Stiff-Knee Gait in Japanese Patients with Knee Osteoarthritis: A Preliminary Cross-Sectional Study

1
Digital Human Research Team, Artificial Intelligence Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
2
Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
3
Department of Orthopaedic Surgery, Doujin Hospital, Urasoe 901-2133, Japan
*
Author to whom correspondence should be addressed.
Academic Editors: Tadashi Ito and Jose M. Moran
Healthcare 2021, 9(10), 1308; https://doi.org/10.3390/healthcare9101308
Received: 29 July 2021 / Revised: 17 September 2021 / Accepted: 27 September 2021 / Published: 30 September 2021
(This article belongs to the Special Issue Comprehensive Clinical Physiotherapy and Rehabilitation: Version II)
Background: Individuals with knee osteoarthritis are restricted in their daily activity because of walking difficulty. The purpose of this investigation was to examine the association between self-reported walking difficulty and knee flexion excursion during gait in Japanese patients with knee osteoarthritis. Methods: Twenty-eight patients with knee osteoarthritis participated in this study. Knee flexion excursions in loading response and swing during gait were measured through an inertial measurement unit-based motion capture system. The walking difficulty was assessed by a subitem in the Japanese Knee Osteoarthritis Measure. Pain intensity was assessed by a visual analog scale. Characteristics and gait variables were compared between groups that were determined a priori using the results of the walking difficulty assessment. The relationship between knee flexion excursion during gait and walking difficulty were analyzed using logistic regression. Results: The participants with walking difficulty had significantly small knee flexion excursion in both loading response and swing with large pain. After controlling the effect of pain, only knee flexion excursion in the swing was significantly related to the walking difficulty. Conclusions: This study suggested that the knee flexion excursion in swing during gait is helpful for understanding the walking difficulty experienced in Japanese patients with knee osteoarthritis. View Full-Text
Keywords: gait; inertial measurement unit; knee flexion excursion; knee osteoarthritis; motion capture; swing; walking difficulty gait; inertial measurement unit; knee flexion excursion; knee osteoarthritis; motion capture; swing; walking difficulty
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MDPI and ACS Style

Toda, H.; Maruyama, T.; Fujita, K.; Yamauchi, Y.; Tada, M. Self-Reported Walking Difficulty Associated with Stiff-Knee Gait in Japanese Patients with Knee Osteoarthritis: A Preliminary Cross-Sectional Study. Healthcare 2021, 9, 1308. https://doi.org/10.3390/healthcare9101308

AMA Style

Toda H, Maruyama T, Fujita K, Yamauchi Y, Tada M. Self-Reported Walking Difficulty Associated with Stiff-Knee Gait in Japanese Patients with Knee Osteoarthritis: A Preliminary Cross-Sectional Study. Healthcare. 2021; 9(10):1308. https://doi.org/10.3390/healthcare9101308

Chicago/Turabian Style

Toda, Haruki, Tsubasa Maruyama, Koji Fujita, Yuki Yamauchi, and Mitsunori Tada. 2021. "Self-Reported Walking Difficulty Associated with Stiff-Knee Gait in Japanese Patients with Knee Osteoarthritis: A Preliminary Cross-Sectional Study" Healthcare 9, no. 10: 1308. https://doi.org/10.3390/healthcare9101308

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