2022
DOI: 10.1080/10255842.2022.2044028
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Developing a method for quantifying hip joint angles and moments during walking using neural networks and wearables

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Cited by 9 publications
(6 citation statements)
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“…Force-instrumented insoles were selected in favor of force plates in order to collect repeated gait cycles while performing stair ascent. As in prior investigations, the wearable-ANN approach would be considered successful if average rRMSE was less than 13% [28,31]. Thus, we hypothesized that all variables (sagittal angle, sagittal moment, frontal angle, frontal moment) would achieve rRMSE < 13%.…”
Section: Introductionmentioning
confidence: 90%
See 1 more Smart Citation
“…Force-instrumented insoles were selected in favor of force plates in order to collect repeated gait cycles while performing stair ascent. As in prior investigations, the wearable-ANN approach would be considered successful if average rRMSE was less than 13% [28,31]. Thus, we hypothesized that all variables (sagittal angle, sagittal moment, frontal angle, frontal moment) would achieve rRMSE < 13%.…”
Section: Introductionmentioning
confidence: 90%
“…In traditional biomechanical modeling, this requires precise fixation to patients, is time consuming, and necessitates detailed coordinate transformations to transform wearable data captured in local coordinate frames to an anatomic frame of reference for kinematics/kinetics [25][26][27]. However, prior work in our own lab leveraged a machine learning approach to calculate 2D (sagittal, frontal planes) joint angles/moments from one shin-mounted IMU, one force-instrumented insole, and a simplified artificial neural network (ANN) with two hidden layers and five nodes per layer [28].…”
Section: Introductionmentioning
confidence: 99%
“…Similar studies were used to choose the number of the hidden layer and transfer function [19,20,33]. We used hyperbolic tangent function for hidden layer because hyperbolic tangent function provides greater sensitivity to input variability and larger working range than sigmoid function [29]. We also used linear transfer function for the output layer.…”
Section: Annmentioning
confidence: 99%
“…Some studies have used ANN with inertial sensor to classify gait, estimate GRF, and orientation of segment [17,[26][27][28]. Most researchers investigated particular ankle, knee, and hip moment in sagittal plane [12], hip moment in sagittal and frontal plane [29], hip moment in frontal plane [30], knee moment in sagittal [31] or frontal plane [13], ankle moment in frontal and sagittal planes [32], and lower limb joints moment in all three planes [18,33]. The previous studies utilized a few subjects and a recent review article by Xiang et al has shown to utilize more subjects (more than 20) [34] and we utilized 73 subjects.…”
Section: Introductionmentioning
confidence: 99%
“…Dorschky et al also found that the addition of synthetic IMU data improved their model predictions [13]. McCabe et al incorporated a force-measuring insole with an IMU on the shank to predict hip joint loading along with kinematics using a neural network model [14]. However, these studies were restricted to walking and treadmill activities.…”
Section: Introductionmentioning
confidence: 99%