Le Rossignol, Scott, Fraser, Ewen, Grant, Andrea, Doma, Kenji, Wilkinson, Matthew, Morse, Levi, McEwen, Peter, Hazratwala, Kaushik, and Connor, Jonathan (2023) Patients with knee osteoarthritis have altered gait and gaze patterns compared to age-matched controls: A pilot study. PLoS ONE, 18 (11). e0283451.

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Abstract

Purpose: Although knee Osteoarthritis (KOA) sufferers are at an increased risk of falls, possibly due to impaired gait function, the associated gaze behaviour in patients with KOA are largely unknown. Thus, we compared gait and gaze behaviours characteristics between KOA patients and asymptomatic age-matched controls.

Results: for Timed Up and Go (TUG) and stair climb tasks, the KOA group demonstrated longer periods of gaze fixations with less frequency of fixations compared to the control group. Conversely, for the Timed up and Go Agility (TUGA) test shorter fixation and frequency patterns were observed. The KOA group presented a shorter final stride length prior to the initiation of the first step in the Stair climb assessment. In addition, for the 30m walk and dual task assessments, the average step length was significantly shorter in the KOA group compared to controls.

Conclusion: Overall, we found altered gait and gaze behaviours are evident in KOA patients which could relate to their increased falls risk.

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