Article
Engineering, Biomedical
Shoval Sade, Hodaya Pickholz, Itshak Melzer, Amir Shapiro
Summary: This paper describes the development and building of the EPES system, which provides unexpected perturbations during elliptical walking to improve trunk and upper limbs balance reactive responses. The system uses a stationary Elliptical Exercise device and software that can identify and control the balance responses. Pilot results show successful identification of balance reactive responses among participants exposed to unexpected perturbations on the EPES system.
JOURNAL OF NEUROENGINEERING AND REHABILITATION
(2023)
Article
Neurosciences
Emily K. Eichenlaub, Daniel Duque Urrego, Sahaj Sapovadia, Jessica Allen, Vicki S. Mercer, Jeremy R. Crenshaw, Jason R. Franz
Summary: Despite progress in understanding balance control mechanisms, the number of falls in older adults is expected to increase. Anticipation may play a role in falls prevention strategies, but its effect on proactive and reactive adjustments to perturbations has not been fully investigated, even in young adults.
HUMAN MOVEMENT SCIENCE
(2023)
Review
Chemistry, Analytical
Zoe Taylor, Gregory S. Walsh, Hannah Hawkins, Mario Inacio, Patrick Esser
Summary: This systematic review examines the perturbation methods and outcome variables used to assess participant biomechanical responses during walking. The study finds that treadmill translation is the most frequently used balance perturbation method, and the most commonly collected outcome variables are step width and step length. The wide variety of laboratory perturbation methods and the significant impact of perturbation type on study outcomes are highlighted.
Article
Multidisciplinary Sciences
Aaron N. N. Best, Amy R. R. Wu
Summary: Healthy humans can maintain stability when facing diverse walking conditions, and this proficiency is achieved through control strategies that are yet to be fully understood. Laboratory-based research previously suggested that corrective stepping is the primary strategy, but its applicability in everyday obstacles outside the laboratory is uncertain. This study investigated changes in gait stability behavior during outdoor walking in different seasons and found that winter conditions did not hinder stepping as hypothesized. Instead, the stepping strategy was modified to enhance stability through increasing the anterior-posterior margin of stability, without additional compensation from ankle or trunk strategies.
SCIENTIFIC REPORTS
(2023)
Article
Biophysics
Arian Vistamehr, Richard R. Neptune
Summary: Older adults exhibit poorer mediolateral balance control compared to younger adults during walking, as indicated by a significantly higher range of frontal-plane angular momentum. This difference is attributed to wider foot placement and higher hip abduction moment in older adults, emphasizing the importance of proper weight transfer mechanisms and hip abductor force production for maintaining mediolateral balance.
JOURNAL OF BIOMECHANICS
(2021)
Article
Engineering, Biomedical
Christopher McCrum, Anouk W. Vaes, Jeannet M. Delbressine, Maud Koopman, Wai-Yan Liu, Paul Willems, Kenneth Meijer, Martijn A. Spruit
Summary: This study examined the feasibility and initial responses to large walking perturbations in COPD, as well as the adaptation potential of people with COPD to repeated perturbations. The findings suggest that perturbation-based balance training may be considered for fall prevention in COPD.
CLINICAL BIOMECHANICS
(2022)
Article
Multidisciplinary Sciences
Mareike R. Eschweiler, Christopher R. McCrum, Eleftheria R. Giannouli
Summary: This study aims to investigate the effects of mask-wearing on walking adaptability in patients with Parkinson's disease and Multiple Sclerosis. The researchers will measure the performance of these patients on a VR-based treadmill and clinical mobility tests with and without a face mask. The study is significant as it will provide clinical data to inform evidence-based recommendations on mask-wearing during walking for individuals with neurological diseases.
Article
Multidisciplinary Sciences
Hosein Bahari, Juan Forero, Jeremy C. Hall, Jacqueline S. Hebert, Albert H. Vette, Hossein Rouhani
Summary: Novel biomechanical measures for evaluating loss-of-balance under perturbed walking conditions were introduced and evaluated in this study. The proximity of the body's centre of mass position and velocity to the Extended Feasible Stability Region (ExFSR) limits was used to quantify stability. Findings indicated that the proposed measures correlated significantly with previously suggested measures, offering insights into biomechanical mechanisms of loss-of-balance and contributing to balance assessment strategy development.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Tarique Siragy, Allen Hill, Julie Nantel
Summary: The study investigated the role of arm elevation strategy in slips among individuals with Parkinson's Disease, with findings indicating that the impact of arm swing on stability restoration remains unexplored in this population. Additionally, asymmetrical impairments in slip recovery response were observed among participants, suggesting potential challenges in restoring stability after slips in this group.
Article
Geriatrics & Gerontology
Dale M. Harris, Rachel L. Duckham, Robin M. Daly, Gavin Abbott, Liam Johnson, Timo Rantalainen, Wei-Peng Teo
Summary: The study developed a falls questionnaire specific for older adults with Parkinson's disease and demonstrated good test-retest reliability in capturing recent falls and near-falls circumstances and consequences.
Article
Engineering, Industrial
Stephen Dooley, Sunwook Kim, Maury A. Nussbaum, Michael L. Madigan
Summary: The purpose of this study was to investigate the effects of arm- and back-support exoskeletons on reactive balance after slip-like and trip-like perturbations on a treadmill. The study found that the exoskeletons did not significantly increase the probability of failed recovery after the perturbations, but did make balance recovery more challenging. Reactive balance differed when wearing different types and activation states of exoskeletons.
APPLIED ERGONOMICS
(2024)
Article
Multidisciplinary Sciences
Shun Yamashita, Kotaro Igarashi, Naomichi Ogihara
Summary: The study found that applying vibratory stimulation during walking can reduce foot trajectory variability in older adults, especially in the toe trajectory during the swing phase. This method has the potential to reduce the risk of falls.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Shuaijie Wang, Yi-Chung Pai, Tanvi Bhatt
Summary: Individuals can rapidly develop adaptive skills for fall prevention after exposure to the repeated-slip paradigm. The central nervous system generates new muscle synergies through fractionating or modifying pre-existing ones in the early-adaptation phase to compensate for motor errors due to external perturbation. Redundant synergies generated in the early-adaptation phase are eliminated during the late-adaptation phase, further consolidating slip adaptation.
SCIENTIFIC REPORTS
(2022)
Article
Neurosciences
Victor Munoz-Martel, Alessandro Santuz, Sebastian Bohm, Adamantios Arampatzis
Summary: This study investigated the effects of perturbations induced by unstable surfaces on the lower limb muscles during lunging exercises. The results showed sparse alterations in muscle mechanical loading, but a significant modulation in the modular organization of motor control in the unstable condition. Enhanced control robustness allowed participants to maintain functionality in challenging postural settings, suggesting the benefits of perturbation-based training.
FRONTIERS IN HUMAN NEUROSCIENCE
(2021)
Article
Biophysics
Lydia G. Brough, Richard R. Neptune
Summary: Walking requires active control of balance in the frontal plane, and the contribution of various muscles to foot placement and balance control has been investigated. The study found that different muscles play a role in controlling foot placement following medial and lateral perturbations.
JOURNAL OF BIOMECHANICS
(2022)
Article
Computer Science, Artificial Intelligence
Brian Horsak, Ronald Dlapka, Michael Iber, Anna-Maria Gorgas, Anita Kiselka, Christian Gradl, Tarique Siragy, Jakob Doppler
JOURNAL ON MULTIMODAL USER INTERFACES
(2016)
Article
Rehabilitation
Brian Horsak, Marion Kiener, Andreas Poetzelsberger, Tarique Siragy
PHYSICAL THERAPY IN SPORT
(2017)
Article
Biophysics
Tarique Siragy, Cezar Mezher, Allen Hill, Julie Nantel
JOURNAL OF BIOMECHANICS
(2020)
Article
Clinical Neurology
Tarique Siragy, Julie Nantel
FRONTIERS IN NEUROLOGY
(2020)
Article
Clinical Neurology
Tarique Siragy, Mary-Elise MacDonald, Julie Nantel
FRONTIERS IN NEUROLOGY
(2020)
Article
Engineering, Biomedical
Samira Ahmadi, Tarique Siragy, Julie Nantel
Summary: Incorporating a time delay greater than one and considering multiple scales helped better distinguish between single and dual-task walking. The complexity index, defined as the summary of multiscale SampEn analysis, was the most efficient discriminatory index between single-task walking and dual-tasking in people with Parkinson's disease.
JOURNAL OF NEUROENGINEERING AND REHABILITATION
(2021)
Article
Multidisciplinary Sciences
Tarique Siragy, Allen Hill, Julie Nantel
Summary: The study investigated the role of arm elevation strategy in slips among individuals with Parkinson's Disease, with findings indicating that the impact of arm swing on stability restoration remains unexplored in this population. Additionally, asymmetrical impairments in slip recovery response were observed among participants, suggesting potential challenges in restoring stability after slips in this group.
Article
Biotechnology & Applied Microbiology
Cezar Mezher, Tarique Siragy, Julie Nantel
Summary: The study evaluated the effect of arm swing on postural control and stability, finding that active arm swing increased trunk velocity variability and peak values, as well as step length, step time, and stability boundary variability. Walking on a rocky surface increased trunk kinematics variability and peak values, as well as step width and reduced step time. The results suggest that individuals adopt a cautious gait to mitigate the destabilizing effects of active arm swing and walking on rocky surfaces in order to maintain dynamic stability.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Proceedings Paper
Neurosciences
Theresa Fischer, Anita Kiselka, Ronald Dlapka, Jakob Doppler, Michael Iber, Christian Gradl, Anna-Maria Gorgas, Tarique Siragy, Brian Horsak
CONVERGING CLINICAL AND ENGINEERING RESEARCH ON NEUROREHABILITATION II, VOLS 1 AND 2
(2017)
Proceedings Paper
Neurosciences
Anna-Maria Gorgas, Lena Schon, Ronald Dlapka, Jakob Doppler, Michael Iber, Christian Gradl, Anita Kiselka, Tarique Siragy, Brian Horsak
CONVERGING CLINICAL AND ENGINEERING RESEARCH ON NEUROREHABILITATION II, VOLS 1 AND 2
(2017)