Knee adduction moments are not increased in obese knee osteoarthritis patients during stair negotiation

Abstract

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Osteoarthritis year in review 2020: mechanics

“…Past studies have demonstrated increased TF joint loading during walking with obesity 38e40 , and reductions in joint compressive loading with weight loss 41 . This year Verlaan et al 42 provided further evidence, showing that obese individuals with OA exhibited more flattened KAM patterns and increased stance times during stair ascent, indicative of more constant total knee loading with obesity. These results are consistent with past evidence of more constant KAM loading patterns 43 reported during walking in obese individuals with knee OA, characteristic of the gait patterns linked to clinical TF OA progression by Hatfield et al 19 This highlights a potential link between altered mechanics with obesity and clinical TF progression.…”

Signatures of knee osteoarthritis in women in the temporal and fractal dynamics of human gait

“…To account for these observations, we recently recorded detailed motion data via an optoelectronic motion capturing system, of the same subjects included in this study performing the actions investigated by Fukutani and colleagues (Fukutani et al, 2016), i.e. walking on a flat surface (Verlaan et al, submitted), ascending and descending stairs (Verlaan et al, 2019) and sit-to-stand (Verlaan et al, 2018) and vice versa.…”

Moving out of the lab

“…To account for these observations, we recently recorded detailed motion data via an optoelectronic motion capturing system, of the same subjects included in this study performing the actions investigated by Fukutani and colleagues 57 , i.e. walking on a flat surface (Verlaan et al, submitted), ascending and descending stairs 58 and sit-to-stand 42 and vice versa.…”

“…56 Physical activity is an important determinant of general health and is negatively affected by many chronic degenerative diseases. 57,58 The increased mortality documented for untreated hip OA is attributed to reduced physical activity. 59 Knee OA will have the same results.…”

“…60 Developments in ambulant motion sensor technologies have recently provided more feasible alternatives for objective assessment of actual free-living physical activity. 58,61 Accelerometry has demonstrated its potential to provide an estimation of activity quantity 32 , to provide qualitative assessment of physical activity such as spatiotemporal gait analysis 62 and activity intensity measures. 61 Furthermore, accelerometer-based physical activity monitoring permits to differentiate between different activities of daily living (ADL) such as walking or sitting 63,64 and could select only those activities that are challenging and clinically relevant for specific patient populations.…”