ArticleGait & posture2018
Analysis of biases in dynamic margins of stability introduced by the use of simplified center of mass estimates during walking and turning.
Article in Gait & posture, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.
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Who cites it
50 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Use of the margin of stability to quantify stability in pathologic gait - a qualitative systematic review.BMC musculoskeletal disorders · 2021Pooled it
- Effects of one night of sleep deprivation on single- and dual-task gait.Journal of the Royal Society, Interface · 2026Article
- Dynamic stability is tied to gait assistance when walking with a hip exoskeleton.Scientific reports · 2026Article
- Age-related differences in proactive and reactive neuromechanics throughout the time course of walking balance perturbations.Journal of neurophysiology · 2026Article
- Effects of unexpected underfoot perturbations during turning on measures of mediolateral stability and corresponding recovery strategies.The Journal of experimental biology · 2026Article
- Visual Context Influences Lateral Balance While Walking on Winding Paths.bioRxiv : the preprint server for biology · 2026Article
- The effects of cervical spine posture on susceptibility to walking balance perturbations.PloS one · 2026Article
- Whole-body optical marker and ground reaction force data of healthy humans performing non-cyclic activities.Scientific data · 2025Article
- People with Chronic Stroke Adopt Gait Patterns That Enhance Control of Center-of-Mass Dynamics in Response to Movement Amplification.IEEE ... International Conference on Rehabilitation Robotics : [proceedings] · 2025Article
- Applying bilateral mastoid vibration changes the margin of stability in the anterior-posterior and medial-lateral directions while walking on different inclines.European journal of medical research · 2025Article
- Identification of Subtypes of Post-Stroke and Neurotypical Gait Behaviors Using Neural Network Analysis of Gait Cycle Kinematics.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2025Article
- Perceived severity of forward versus backward balance disturbances during walking in young and older adults.PloS one · 2025Article
- Comparison of marker-based and center-of-pressure-based approaches for calculating the margin of stability.Frontiers in sports and active living · 2025Article
- Humans exploit the trade-off between lateral stability and manoeuvrability during walking.Proceedings. Biological sciences · 2024Article
- Probability of lateral instability while walking on winding paths.Journal of biomechanics · 2024Article
- How older adults maintain lateral balance while walking on narrowing paths.Gait & posture · 2024Article
- Amplify Gait to Improve Locomotor Engagement in Spinal Cord Injury (AGILE SCI) trial: study protocol for an assessor blinded randomized controlled trial.BMC neurology · 2024Article
- Generalizability of foot placement control strategies during unperturbed and perturbed gait.Royal Society open science · 2024Article
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3 authors.
Funding
Abstract
The ability to control the body's center of mass (CoM) is critical for preventing falls, which are a major health concern in aging populations. Control of the CoM has been assessed by characterizing dynamic margins of stability (MoS) which capture the dynamic relationship between the CoM and the base of support. Accurate estimation of CoM dynamics is best accomplished using a full-body marker set. However, a number of simplified estimates have been used throughout literature. Here, we determined the biases and sources of bias when computing MoS using four simplified CoM models, and we characterized how these biases varied in straight walking versus turning. CoM kinematics were characterized using a full-body marker set, the lower extremities and trunk, lower extremities only, an average of four pelvic markers, and one pelvic marker alone. Significant bias was demonstrated for most methods and was larger during turning tasks compared to straight walking. In the fore-aft direction, only overestimates in the MoS were observed, and these ranged from 15 to 110% larger than the true MoS value. In the mediolateral direction, both under- and over-estimates were observed and ranged from -175 to 225%. Across tasks, bias was smallest when using the lower extremity plus trunk (-23 to 62%) and pelvis average methods (-71 to 43%). Sources of bias were attributed to misestimates of CoM height, velocity, and position. Together, our findings suggest that the 1) lower extremity and trunk model and 2) pelvis average model should be considered in future studies to minimize bias when simplified models of CoM dynamics are desired.
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