Balance, Gait, and Falls Prevention

Changes in interlimb coordination induced by within-stride changes in treadmill speed

This study examines how dynamic treadmill walking affects interlimb coordination by altering treadmill speed within a stride, showing changes in phase shift and center of oscillation difference.

A Low-Cost Markerless motion capture system to automate Functional Gait Assessment: Feasibility Study

This study develops a low-cost, AI-driven markerless motion capture system for functional gait assessment, validated against traditional methods and showing strong correlation in key metrics.

Impact of age and surface irregularities on intersegmental and inter-joint coordination during gait

This study examines how age and uneven surfaces affect intersegmental and inter-joint coordination during gait, finding age-related differences in coordination patterns and variability.

Determining perception thresholds of young adults to small continuous moving platform perturbations

This study quantifies young adults' perception thresholds for small platform perturbations during balancing and finds subthreshold perturbations affect balance performance.

Proactive adjustments to cued gait perturbations in people with and without chronic stroke

This study compares proactive gait adjustments in people with and without stroke during expected and unexpected perturbations, finding that stroke survivors use a general strategy instead of proactive modifications.

Deviations in whole body angular momentum are largely corrected before foot placement

This study investigates how mediolateral foot placement is controlled after perturbations affecting linear or angular momentum, finding that linear momentum primarily governs foot placement.

Impaired Motor Awareness of Balance Control is Associated with Postural Instability in Parkinson's Disease

The paper assesses motor awareness of balance control in Parkinson's disease patients and finds impaired awareness correlates with postural instability.

Vestibular and proprioceptive contributions to trunk stabilization differs across postural tasks and walking speeds.

Locomotor savings relies on attentional control of walking in older, but not younger adults

This study shows older adults show less locomotor savings and rely more on attentional control during walking, with greater savings linked to better attentional control.

Effects of Unexpected Underfoot Perturbations During Turning on Measures of Mediolateral Stability and Corresponding Recovery Strategies

This study examines how unexpected underfoot perturbations during turning affect mediolateral stability and recovery strategies in humans.

The Stop Signal Stepping Task: how action cancellation commands disrupt step initiation in young and healthy older adults

This study adapts the stop signal task to stepping to examine how action cancellation affects movement in young and older adults, finding age-related differences in response speed but not stopping speed.

Comparing arm to whole-body motor control disambiguates age-related deterioration from compensation

This study compares arm and whole-body motor control in younger and older adults to determine if age-related changes reflect deterioration or compensation, finding that reduced whole-body movement efficiency correlates with balance control.

The tilt board task as an internally valid practice-transfer paradigm for stabilometer balance assessments

This study shows that a mediolateral tilt board is an internally valid transfer task for stabilometer-based balance assessments, as it shares similar coordination structures and neuromuscular strategies.

Fall risk-aware adaptation explains suboptimal locomotor performance

The paper shows that suboptimal locomotor performance in novel environments results from prioritizing fall risk avoidance, using an inverse adaptation model to infer internal learning parameters.

On attaining and estimating steady walking speed

This paper shows that short gait tests underestimate steady walking speed and proposes a method to correct for this bias using multiple distance measurements.

Cortical responses to balance perturbations persist without active postural control

The paper shows that cortical responses to balance perturbations, like N1 and midfrontal theta, persist without active postural control, suggesting they reflect unexpected sensory evaluation rather than corrective actions.

Cortical response to balance perturbation is more sensitive in modern dancers than nondancers during biomechanically similar balance recovery

This study compares cortical responses to balance perturbations between modern dancers and nondancers, finding dancers have greater cortical sensitivity despite similar biomechanical responses.

The effects of gait speed on the responses to immediate and prolonged exposure to mediolateral optic flow perturbation in healthy young adults

This study examines how gait speed affects responses to mediolateral optic flow perturbations, finding speed-dependent changes in gait parameters during and after perturbation.

Reduced belief updating impairs adaptive step initiation in older adults

This study shows that older adults have slower anticipatory postural adjustments and reduced belief updating during gait initiation, suggesting cognitive control changes contribute to age-related mobility declines.

Body-segment coordination as a new predictor of freezing of gait in people with Parkinson disease

The paper identifies body-segment coordination as a predictor of postoperative freezing of gait severity in Parkinson's disease patients using kinematic data and LASSO regression.

The Impact of Visual Perturbations on Balance Control during Walking

This study examines how different visual perturbations affect balance control during walking, finding that specific perturbations alter foot placement and center of mass trajectories in humans.

A Primary Central Source Determines Perturbation-Evoked N1 Amplitudes but not Latencies in Younger Adults

The paper shows that in younger adults, the N1 amplitude from balance perturbations is mainly from a central cortical source, while latency differences suggest contributions from other brain regions.

Visual Context Influences Lateral Balance While Walking on Winding Paths

This study investigates how visual information affects lateral balance during walking on straight and winding paths, finding that reduced visual contrast and richness increase stepping errors and instability.

Perturbation Recovery Time Identifies Subtle Human Balance Impairments and Features

This paper introduces Perturbation Recovery Time, a balance metric that detects subtle human balance impairments through induced perturbations and identifies key balance-related features.

Hierarchical Coarse-to-Fine cGAN for Subtype-Specific Freezing of Gait Signal Generation

This paper introduces a subtype-aware FOG augmentation technique using Hi-CF cGAN to improve FOG detection across subtypes, achieving higher detection rates for minor subtypes.

Foot placement coordination is impaired in people with Parkinson's Disease

This study shows that people with Parkinson's Disease have greater foot placement errors during walking compared to healthy older adults, suggesting impaired coordination between center of mass and foot placement.

Speeding up, not slowing down, decreases the energy needed to control walking balance

This study investigates how walking speed affects the metabolic cost of balance control, finding that faster speeds reduce the energy needed to stabilize walking.

Frequency-dependent effects of hip abductor vibration and surface translation on mediolateral sway

This study examines how hip abductor vibration and surface translation affect mediolateral sway at low frequencies, finding that vibration increases sway above 0.5 Hz while translation causes more widespread effects.

The cost of dual-task walking: cognitive demands restrict visual search and gait planning

This study examines how cognitive load affects visual search and gait biomechanics during walking, finding slower speeds and altered gaze patterns under dual-task conditions.

Changes in Corticospinal Excitability in Response to Mediolateral Gait Instability

This study examines corticospinal excitability during mediolateral gait instability and finds increased excitability in upper-leg muscles but not lower-leg muscles during destabilized treadmill walking.