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Self-Perception of the Knee Is Associated with Joint Motion during the Loading Response in Individuals with Knee Osteoarthritis: A Pilot 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 113-8510, Japan
3
Department of Orthopaedic Surgery, Dojin Hospital, Okinawa 901-2133, Japan
*
Author to whom correspondence should be addressed.
Academic Editors: Jacob Sosnoff, Arnaud Gouelle and Clint Hansen
Sensors 2021, 21(12), 4009; https://doi.org/10.3390/s21124009
Received: 20 April 2021 / Revised: 7 June 2021 / Accepted: 7 June 2021 / Published: 10 June 2021
Small knee flexion motion is a characteristic of gait in individuals with knee osteoarthritis. This study examined the relationship between knee flexion excursion in loading response and knee self-perception in individuals with knee osteoarthritis. Twenty-one individuals with knee osteoarthritis participated in this study. Knee flexion excursions in loading response while walking at a comfortable and a fast-walking speed were measured using an inertial measurement unit-based motion capture system. The degree of knee perceptual impairment was evaluated using the Fremantle Knee Awareness Questionnaire (FreKAQ). The relationships between the FreKAQ score and gait variables and knee function were evaluated by calculating the correlation coefficient. The unique contributions of knee self-perception and muscle strength to knee flexion excursion in loading response were analyzed using hierarchical linear regression. Knee self-perception was significantly correlated with pain during walking, muscle strength and knee flexion excursion at fast speed. In the fast speed condition only, impaired knee self-perception was inversely proportional to knee flexion excursion and accounted for 21.8% of the variance in knee flexion excursion. This result suggests that impaired self-perception of the knee may help to explain the decrease in the knee flexion excursion in the loading response in individuals with knee osteoarthritis. View Full-Text
Keywords: Fremantle Knee Awareness Questionnaire; gait; inertial measurement unit; joint motion; motion capture; osteoarthritis; self-perception Fremantle Knee Awareness Questionnaire; gait; inertial measurement unit; joint motion; motion capture; osteoarthritis; self-perception
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MDPI and ACS Style

Toda, H.; Maruyama, T.; Fujita, K.; Yamauchi, Y.; Tada, M. Self-Perception of the Knee Is Associated with Joint Motion during the Loading Response in Individuals with Knee Osteoarthritis: A Pilot Cross-Sectional Study. Sensors 2021, 21, 4009. https://doi.org/10.3390/s21124009

AMA Style

Toda H, Maruyama T, Fujita K, Yamauchi Y, Tada M. Self-Perception of the Knee Is Associated with Joint Motion during the Loading Response in Individuals with Knee Osteoarthritis: A Pilot Cross-Sectional Study. Sensors. 2021; 21(12):4009. https://doi.org/10.3390/s21124009

Chicago/Turabian Style

Toda, Haruki; Maruyama, Tsubasa; Fujita, Koji; Yamauchi, Yuki; Tada, Mitsunori. 2021. "Self-Perception of the Knee Is Associated with Joint Motion during the Loading Response in Individuals with Knee Osteoarthritis: A Pilot Cross-Sectional Study" Sensors 21, no. 12: 4009. https://doi.org/10.3390/s21124009

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