Task-dependent postural control throughout the lifespan

JM Haddad, S Rietdyk, LJ Claxton… - Exercise and sport …, 2013 - journals.lww.com
When performing many daily activities, individuals must adopt body configurations,
orientations, and movements that allow upright stance to be maintained while other tasks …

Gait adaptability

V Weerdesteyn, KL Hollands, MA Hollands - Handbook of clinical …, 2018 - Elsevier
Our activities of daily living inherently involve interacting with the physical environment. This
interaction involves both reactive (feedback) and proactive (feedforward) gait adaptations …

Falls in young adults: The effect of sex, physical activity, and prescription medications

HY Cho, MJH Heijnen, BA Craig, S Rietdyk - PloS one, 2021 - journals.plos.org
Falls are a major public health issue not only for older adults but also young adults, with fall-
related injuries occurring more frequently in adult females than males. However, the sex …

Falls in young adults: Perceived causes and environmental factors assessed with a daily online survey

MJH Heijnen, S Rietdyk - Human movement science, 2016 - Elsevier
Falls are the third leading cause of unintentional injuries for ages 18–35 years (CDC), but
the causes and circumstances of falls in this age group are understudied. The purpose of …

Proactive gait strategies to mitigate risk of obstacle contact are more prevalent with advancing age

BC Muir, JM Haddad, MJH Heijnen, S Rietdyk - Gait & posture, 2015 - Elsevier
The purposes of this study were to determine if healthy older adults adopt strategies to
decrease the likelihood of obstacle contact, and to determine how these strategies are …

Unsteady steady-states: central causes of unintentional force drift

S Ambike, D Mattos, VM Zatsiorsky… - Experimental brain …, 2016 - Springer
We applied the theory of synergies to analyze the processes that lead to unintentional
decline in isometric fingertip force when visual feedback of the produced force is removed …

Interactions of age and leg muscle fatigue on unobstructed walking and obstacle crossing

FA Barbieri, PCR dos Santos, L Simieli, D Orcioli-Silva… - Gait & posture, 2014 - Elsevier
Older adults commonly report muscle fatigue, which may be associated with reduced
walking ability. Elderly may have insufficient awareness of the balance threat caused by …

Changes in the control of obstacle crossing in middle age become evident as gait task difficulty increases

BC Muir, JM Haddad, REA Van Emmerik, S Rietdyk - Gait & Posture, 2019 - Elsevier
Background Age-associated physiological changes result in modified gait, such as slower
speed, for older adults. Identifying the onset of age-related gait changes will provide insight …

Gait characteristics during inadvertent obstacle contacts in young, middle-aged and older adults

BC Muir, LA Bodratti, CE Morris, JM Haddad… - Gait & Posture, 2020 - Elsevier
Background When stepping over obstacles, analyses have focused on the successful trials
to understand adaptive gait. However, examination of the inadvertent trips that occasionally …

Memory-guided obstacle crossing: more failures were observed for the trail limb versus lead limb

MJH Heijnen, NL Romine, DM Stumpf… - Experimental brain …, 2014 - Springer
During adaptive locomotion, vision is used to guide the lead limb; however, the individual
must rely on knowledge of obstacle height and position, termed obstacle memory, to guide …