Reductions in peak knee abduction moment in three previously studied gait modification strategies

Lindsey, Bryndan; Eddo, Oladipo; Caswell, Shane V.; Prebble, Matt; Cortés, Nelson

doi:10.1016/j.knee.2019.09.017

Cited by 16 publications

(20 citation statements)

References 31 publications

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“…The proposed algorithm estimated the FPA based on the peak foot deceleration measured before heel-strike, so theoretically the estimation can be finished immediately after mid-stance. Therefore, this algorithm can potentially enable FPA feedback during the second half of stance phase, which is an important prerequisite for real-time FPA modification research [5], [36], [37]. A different FPA estimation strategy can be based on the peak foot acceleration during the first half of swing phase, but this strategy requires IMU data captured after toe-off for estimation, making the real-time FPA feedback infeasible.…”

Section: Discussionmentioning

confidence: 99%

Magnetometer-Free, IMU-Based Foot Progression Angle Estimation for Real-Life Walking Conditions

Tan

Strout

Xia

et al. 2021

IEEE Trans. Neural Syst. Rehabil. Eng.

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Section: Discussionmentioning

confidence: 99%

Magnetometer-Free, IMU-Based Foot Progression Angle Estimation for Real-Life Walking Conditions

Tan

Strout

Xia

et al. 2021

IEEE Trans. Neural Syst. Rehabil. Eng.

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“…Studies found that reducing KAM with gait modi cations does not necessarily also change medKCF because other joint loading parameters as KFM or muscle co-contraction might be affected 11,30,31 . A possible successful gait modi cation for reducing medKCF could be in-toeing that potentially reduces KAM but not substantially affecting KFM [32][33][34] .…”

Section: Discussionmentioning

confidence: 99%

Knee Joint Moments Can Accurately Predict Medial and Lateral Knee Contact Forces in Patients With Valgus Malalignment

Holder

Drongelen

Uhlrich

et al. 2022

Preprint

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Compressive knee joint contact force during walking is thought to be related to initiation and progression of knee osteoarthritis. However, joint loading is often evaluated with surrogate measures, like the external knee adduction moment, due to the complexity of computing joint contact forces. Statistical models have shown promise for predicting joint contact force from easily measured joint moments in individuals with osteoarthritis or joint replacements. This approach may also be effective in young patients with valgus deformities. The purpose of this study was to evaluate how accurately medial and lateral knee joint contact forces could be estimated by linear mixed-effects models during walking for children with and without valgus malalignment. Knee joint moments were strongly correlated (R2 > 0.85, p < 0.001) with both medial and lateral knee joint contact forces. The knee flexion and adduction moments were significant covariates in most of the models, strengthening the understanding of the contribution of both moments to medial and lateral knee joint contact force. In the future, these models could be used to predict knee joint contact forces using joint moments from motion capture software, obviating the need for time-consuming musculoskeletal simulations.

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“…A number of gait modifications have been identified that may help reduce the JRF in the medial compartment of the knee. Three common modifications investigated include lateral trunk lean (LTL) [6][7][8][9][10][11][12][13][14], medial knee thrust (MKT) [7-9, 11, 15-19], and toe-in gait (TIG) [7-9, 11, 17, 20]. A systematic review of gait interventions [7] found that when paired with real-time biofeedback (RTB), the three interventions chosen for this study show the greatest potential to reduce the knee adduction moment (KAM) in patients with knee OA.…”

Section: Introductionmentioning

confidence: 99%

“…The LTL modification has been shown to reduce KAM when the trunk angle is modified by a sufficient amount [6,9,35,36] but it has also been reported that the modification may lead to discomfort in the spine and ipsilateral knee and hip joints [6].…”

Section: Introductionmentioning

confidence: 99%

Simulated Tibiofemoral Joint Reaction Forces for Three Previously Studied Gait Modifications in Healthy Controls

Prebble

Wei

Martin

et al. 2022

Journal of Biomechanical Engineering

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Gait modifications, such as lateral trunk lean (LTL), medial knee thrust (MKT) and toe-in gait (TIG), are frequently investigated interventions used to slow the progression of knee osteoarthritis. The Lerner knee model was developed to estimate the tibiofemoral joint reaction forces (JRF) in the medial and lateral compartments during gait. These models may be useful for estimating the effects on the JRF in the knee as a result of gait modifications. We hypothesized that all gait modifications would decrease the JRF compared to normal gait. Twenty healthy individuals volunteered for this study (26.7 ± 4.7 years, 1.75 ± 0.1 m, 73.4 ± 12.4 kg). Ten trials were collected for a normal gait as well as for the three gait modifications: LTL, MKT, and TIG. The data was used to estimate the JRF in the first and second peaks for the medial and lateral compartments of the knee via OpenSim using the Lerner knee model. No significant difference from baseline was found for the first peak in the medial compartment. Statistically significant effects from baseline were found for the medial second peak as well as the first and second peaks in the lateral compartment. While there was a decrease in JRF in the medial compartment during the loading phase of gait for both TIG and LTL the differences were not statistically significant. MKT showed an increasing JRF in the medial compartment but was also not significant.

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Reductions in peak knee abduction moment in three previously studied gait modification strategies

Cited by 16 publications

References 31 publications

Magnetometer-Free, IMU-Based Foot Progression Angle Estimation for Real-Life Walking Conditions

Magnetometer-Free, IMU-Based Foot Progression Angle Estimation for Real-Life Walking Conditions

Knee Joint Moments Can Accurately Predict Medial and Lateral Knee Contact Forces in Patients With Valgus Malalignment

Simulated Tibiofemoral Joint Reaction Forces for Three Previously Studied Gait Modifications in Healthy Controls

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