Research Topics
| Marjorie WoollacottSummaryAffiliation: University of Oregon Country: USA Publications
| Collaborators
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Detail Information
Publications
Balance control during walking in the older adult: research and its implicationsM H Woollacott
Department of Exercise and Movement Science, University of Oregon, Eugene 97403, USA
Phys Ther 77:646-60. 1997..Clinical implications that may be useful for clinicians for assessment and treatment of balance problems that occur during walking are also discussed...- Postural response in older adults with different levels of functional balance capacitySang I Lin
Department of Physical Therapy, National Cheng Kung University, Tainan, Taiwan
Aging Clin Exp Res 16:369-74. 2004..The purpose of this study was to test the hypothesis that functional balance capacity contributes more than age to changes in postural response in the elderly... - Developmental changes in compensatory responses to unexpected resistance of leg lift during gait initiationMarjorie Woollacott
Department of Exercise and Movement Science, University of Oregon, Eugene, OR 97403, USA
Exp Brain Res 144:385-96. 2002.... - Attention and the control of posture and gait: a review of an emerging area of researchMarjorie Woollacott
Department of Exercise and Movement Science, University of Oregon, Eugene, OR 97403, USA
Gait Posture 16:1-14. 2002..g. Parkinson's disease) on the ability to allocate attention to postural tasks and appear to be sensitive measures in both predicting fall risk and in documenting recovery of stability... - Effect of balance training on muscle activity used in recovery of stability in children with cerebral palsy: a pilot studyMarjorie Woollacott
Department of Human Physiology, University of Oregon, Eugene, OR 97403, USA
Dev Med Child Neurol 47:455-61. 2005.... 
Eye hand coordination in children with cerebral palsySandra Saavedra
Human Physiology, University of Oregon, Eugene, OR, USA
Exp Brain Res 192:155-65. 2009..We have previously suggested that coupled activation of effectors may be the default output for the CNS during early development...- Effects of postural support on eye hand interactions across developmentSandy Saavedra
Department of Human Physiology and Institute of Neuroscience, University of Oregon, 122C Esslinger Hall, Eugene, OR 97403 1240, USA
Exp Brain Res 180:557-67. 2007.... - Head stability during quiet sitting in children with cerebral palsy: effect of vision and trunk supportSandra Saavedra
Department of Human Physiology and Institute of Neuroscience, University of Oregon, 122C Esslinger Hall, Eugene, OR 97403 1240, USA
Exp Brain Res 201:13-23. 2010..Our results demonstrate that children with mild to moderate CP have deficits in head stability even during quiet sitting... - Ankle force and rate of force production increase following high intensity strength training in frail older adultsJennifer A Hess
Labor Education and Research Center, University of Oregon, Eugene, 97403, USA
Aging Clin Exp Res 18:107-15. 2006..This study evaluated the effect of a 10-week high intensity strength-training program targeting key lower extremity muscles for the purpose of improving postural control in frail older adults... - Attentional mechanisms contributing to balance constraints during gait: the effects of balance impairmentsKa Chun Siu
Department of Human Physiology, Institute of Neuroscience, University of Oregon, Eugene OR, USA
Brain Res 1248:59-67. 2009..Two possible attentional mechanisms (reduced general attentional capacity vs. a true dual-task performance deficit and inability to allocate attention between two tasks) contributing to balance constraints were examined... 
Non-visual spatial tasks reveal increased interactions with stance postural controlMarjorie Woollacott
Department of Human Physiology, University of Oregon, Eugene, OR 97403, USA
Brain Res 1208:95-102. 2008..These results suggest that it is the employment of limited non-visual spatially based coding resources that may underlie previously observed visual dual-task interference effects with stance postural control in healthy young adults...- From egocentric to exocentric spatial orientation: development of posture control in bimanual and trunk inclination tasksMaria Nida Roncesvalles
Texas Tech University, Lubbock, TX, USA
J Mot Behav 37:404-16. 2005..Echoing previous reports, 7-9 years of age appears to be a critical period in which children master postural control and develop an internal representation of body scheme... - Attentional demands of postural control: the ability to selectively allocate information-processing resourcesKa Chun Siu
Department of Human Physiology, University of Oregon, Eugene, OR 97403, USA
Gait Posture 25:121-6. 2007..This suggests the existence of a hierarchy within attentional tasks with postural stability being a priority to stabilize gaze and head position... - Training of balance under single- and dual-task conditions in older adults with balance impairmentPatima Silsupadol
Department of Human Physiology, 1240 University of Oregon, Eugene, OR 97403 1240, USA
Phys Ther 86:269-81. 2006..The purpose of this case report is to describe 3 balance training approaches in older adults with impaired balance... - Selective utilization of spatial working memory resources during stance postureTimothy J VanderVelde
Department of Human Physiology, University of Oregon, Eugene, OR 97403, USA
Neuroreport 16:773-7. 2005..Results demonstrated no significant effect of the cognitive tasks upon postural stability... - Multiple saccades are more automatic than single saccadesPaul van Donkelaar
Department of Human Physiology and Institute of Neuroscience, University of Oregon, Eugene, Oregon 97403 1240, USA
J Neurophysiol 97:3148-51. 2007..Taken together, the present data suggest that multiple saccades are generated in a more automatic manner than single saccades... - Effect of high-intensity strength-training on functional measures of balance ability in balance-impaired older adultsJennifer A Hess
Faculty of the Labor Education and Research Center, University of Oregon, Eugene, OR 97403, USA
J Manipulative Physiol Ther 28:582-90. 2005..The aim of this study was to evaluate the effect of a 10-week, high-intensity strength-training program targeting key lower extremity muscles for the purpose of improving postural control in balance-impaired older adults... - Interaction between the development of postural control and the executive function of attentionDinah S Reilly
Department of Human Physiology, University of Oregon, Eugene
J Mot Behav 40:90-102. 2008..Their performance of an intentionally demanding cognitive task would be enhanced by the provision of appropriately sized desks and chairs or their use of an alternate, less demanding position... - Training-related changes in dual-task walking performance of elderly persons with balance impairment: a double-blind, randomized controlled trialPatima Silsupadol
Department of Human Physiology, 1240 University of Oregon, Eugene, OR 97403, United States
Gait Posture 29:634-9. 2009..Improved dual-task processing skills did not transfer to a novel dual-task condition. Results support Kramer et al.'s proposal that VP training improves both single-task automatization and the development of task-coordination skills... - The interaction between executive attention and postural control in dual-task conditions: children with cerebral palsyDinah S Reilly
Department of Human Physiology, University of Oregon, Eugene, OR, USA
Arch Phys Med Rehabil 89:834-42. 2008..To investigate the interference between a secondary task and a postural task in children with cerebral palsy (CP)... - Lower extremity kinetics for balance control in children with cerebral palsyJessie Chen
Department of Physiology and Neuroscience, New York University School of Medicine, Eugene, OR 97403, USA
J Mot Behav 39:306-16. 2007..Evidence for pathology included increased numbers of torque bursts required to regain stability and less efficient temporal and spatial organization of torque activation patterns... - An intensive massed practice approach to retraining balance post-strokeLaura Adomaitis Vearrier
Department of Exercise and Movement Science, Institute of Neuroscience, 1240 University of Oregon, Eugene, 97403 1240, USA
Gait Posture 22:154-63. 2005..The purpose of this study was to test if the intensive massed practice intervention (6h/day for 2 consecutive weeks) could significantly improve balance function post-stroke... - Dual-task interference during obstacle clearance in healthy and balance-impaired older adultsKa Chun Siu
Motor Control Laboratory, Department of Human Physiology, Institute of Neuroscience, University of Oregon, Eugene, Oregon, USA
Aging Clin Exp Res 20:349-54. 2008..To investigate dual-task interference between a concurrent cognitive task (auditory Stroop test) and obstacle avoidance in older adults with or without a history of falls... - Postural muscle responses following changing balance threats in young, stable older, and unstable older adultsSang I Lin
Department of Physical Therapy, National Cheng Kung University, No 1 Ta Hsueh Road, Tainan, Taiwan 701
J Mot Behav 34:37-44. 2002..When designing balance training programs, therefore, therapists should consider the adult's level of functional stability... - Effects of a secondary task on obstacle avoidance in healthy young adultsKa Chun Siu
HPER Biomechanics Laboratory, University of Nebraska at Omaha, Omaha, NE 68182, USA
Exp Brain Res 184:115-20. 2008..Our findings suggest the existence of a hierarchy of control within both postural task (obstacle avoidance requires the most information processing resources) and dual-task (with gait stability being a priority) conditions... - Gait mechanics in chronic ACL deficiency and subsequent repairReed Ferber
Department of Physical Therapy, University of Delaware, 301 McKinly Lab, Newark, DE 19716 2591, USA
Clin Biomech (Bristol, Avon) 17:274-85. 2002..To determine how normal gait patterns may change as a result of chronic anterior cruciate ligament deficiency and subsequent reconstructive surgery... - Reactive balance adjustments to unexpected perturbations during human walkingReed Ferber
Department of Physical Therapy, University of Delaware, 301 McKinly Lab, Newark, DE 19716 2591, USA
Gait Posture 16:238-48. 2002..Therefore, reactive balance control was a synchronized effort of the lower extremity joints to prevent collapse during the FP... - Gait perturbation response in chronic anterior cruciate ligament deficiency and repairReed Ferber
Department of Physical Therapy, University of Delaware, Newark, DE 19716 2591, USA
Clin Biomech (Bristol, Avon) 18:132-41. 2003..To determine how chronic anterior cruciate ligament deficient and surgically repaired subjects react to unexpected forward perturbations during gait as compared to healthy controls... - An emerging postural response: is control of the hip possible in the newly walking child?Maria Nida C Roncesvalles
Department of Health, Exercise and Sport Sciences, Texas Tech University, Lubbock, TX, USA
J Mot Behav 36:147-59. 2004..Greater success in withstanding large magnitudes of perturbations were associated with actively generated hip responses... - Bilateral accommodations to anterior cruciate ligament deficiency and surgeryReed Ferber
Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, Alta, Canada T2N 1N4
Clin Biomech (Bristol, Avon) 19:136-44. 2004..OBJECTIVE To determine bilateral lower extremity joint accommodations during gait in anterior cruciate ligament deficient subjects and uninjured controls... - Pitch and space maps of skilled cellists: accuracy, variability, and error correctionJessie Chen
Department of Physiology and Neuroscience, New York University School of Medicine, 550 First Avenue MSB 442, New York, NY 10016, USA
Exp Brain Res 188:493-503. 2008..Our results suggest that a performer's intonation should not be viewed as a fixed entity implied by the score but as a sample from a statistical distribution...