The influence of step width on balance control and response strategies during perturbed walking in healthy young adults

Molina, Lindsey K.; Small, Gabriella; Neptune, Richard R.

doi:10.1016/j.jbiomech.2023.111731

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…However, stride width, associated with foot placement strategy and influencing the interaction between the body's center of mass and base of support [5]- [7], plays a crucial role in gait stability, postural balance control, and fall risk reduction for both healthy subjects and individuals with neurodegenerative disease [8]- [11]. Through active adjustment of stride width, individuals optimize energy efficiency [6], enhance dynamic margins of stability [12], negotiate small obstacles [13], and overcome external disturbances during walking [14]. Accurate assessment of stride width also offers insights into the investigation of balance control strategies [6], contributes to personalized rehabilitation planning [15], [16], and facilitates the monitoring of athletic performance and aging [17], [18].…”

Section: Introductionmentioning

confidence: 99%

Stride Width Estimation in Individuals with and without Neurodegenerative Disease via a Novel Data-Augmentation Deep Learning Model and Minimal Wearable Inertial Sensors

Wang,

Ullah,

Gazit

et al. 2024

Preprint

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Stride width is vital for gait stability, postural balance control, and fall risk reduction. However, estimating stride width typically requires either grounded cameras or a full kinematic body suit of wearable inertial measurement units (IMUs), both of which are often too expensive and time-consuming for clinical application. We thus propose a novel data-augmented deep learning model for estimating stride width in individuals with and without neurodegenerative disease using a minimal set of wearable IMUs. Twelve patients with neurodegenerative, clinically diagnosed Spinocerebellar ataxia type 3 (SCA3) performed over ground walking trials, and seventeen healthy individuals performed treadmill walking trials at various speeds and gait modifications while wearing IMUs on each shank and the pelvis. Results demonstrated stride width mean absolute errors of 3.3±0.7cm and 2.9±0.5cm for the neurodegenerative and healthy groups, respectively, which were below the minimal clinically important difference of 6.0cm. Stride width variability mean absolute errors were 1.5cm and 0.8cm for neurodegenerative and healthy groups, respectively. Data augmentation significantly improved accuracy performance in the neurodegenerative group, likely because they exhibited larger variations in walking kinematics as compared with healthy subjects. These results could enable clinically meaningful and accurate portable stride width monitoring for individuals with and without neurodegenerative disease, potentially enhancing rehabilitative training, assessment, and dynamic balance control in clinical and real-life settings.

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Section: Introductionmentioning

confidence: 99%

Stride Width Estimation in Individuals with and without Neurodegenerative Disease via a Novel Data-Augmentation Deep Learning Model and Minimal Wearable Inertial Sensors

Wang,

Ullah,

Gazit

et al. 2024

Preprint

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“…Few studies have investigated perturbations during different gait cycle phases, such as Initial Contact (IC) [27,28], Mid Stance (MS) [29,30], or Pre-Swing (PS) [31]. However, Błażkiewicz and Hadamus [4] investigated how external perturbations induced by treadmill belt acceleration and deceleration during these phases affect gait regularity in young adults.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Induced Acceleration Perturbations in Selected Phases of the Gait Cycle on Kinematic and Kinetic Parameters

Ciunelis,

Borkowski,

Błażkiewicz

2024

Applied Sciences

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Background: The prevalence of falls among the older population underscores the imperative of comprehending human adaptations to gait perturbations. Dual-belt treadmills offer a controlled setting for such investigations. The purpose of this study was to examine the effect of the acceleration of one belt of the treadmill during three different phases of the gait cycle on kinematic and kinetic parameters and relate these changes to unperturbed gait. Methods: Twenty-one healthy young females walked on a treadmill in a virtual environment, in which five unexpected perturbations were applied to the left belt at the Initial Contact (IC), Mid Stance (MS), and Pre-Swing (PS) phase of the gait cycle. Data from the undisturbed gait and the first disturbance of each trial were extracted for analysis. Results: All perturbations significantly affected the gait pattern, mainly by decreasing the knee extension angle. The perturbation in the IC phase had the most significant effect, resulting in a 248.48% increase in knee flexion torque. The perturbation in the MS phase mainly affected plantar flexion torque, increasing it by 118.18%, while perturbation in the PS phase primarily increased the hip extension torque by 73.02%. Conclusions: The presence of perturbations in the IC and PS phases caused the most aggressive and significant changes in gait parameters.

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Walking balance control in different settings: Effects of walking speed and biological sex

Lordall,

Arnold,

Donkers

et al. 2024

Gait & Posture

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The influence of step width on balance control and response strategies during perturbed walking in healthy young adults

Cited by 7 publications

References 35 publications

Stride Width Estimation in Individuals with and without Neurodegenerative Disease via a Novel Data-Augmentation Deep Learning Model and Minimal Wearable Inertial Sensors

Stride Width Estimation in Individuals with and without Neurodegenerative Disease via a Novel Data-Augmentation Deep Learning Model and Minimal Wearable Inertial Sensors

The Impact of Induced Acceleration Perturbations in Selected Phases of the Gait Cycle on Kinematic and Kinetic Parameters

Walking balance control in different settings: Effects of walking speed and biological sex

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