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Detecting post-operative change in gait function using principal component analysis in subjects with cerebral palsyNilsson, Kjell-Åke January 2005 (has links)
No description available.
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Stability of coupled van der pol oscillators and applications to gait control in simple animals /Low, Lesley Ann. January 2002 (has links)
Thesis (Ph. D.)--University of Washington, 2002. / Vita. Includes bibliographical references (leaves 153-160).
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Effects of transcutaneous electrical neural stimulation at the tibialis anterior muscle on kinematic, & kinetic parameters of gait initiation in ParkinsonismHolton, Eric. Toole, Tonya. January 2003 (has links)
Thesis (M.S.)--Florida State University, 2003. / Advisor: Dr. Tonya Toole, Florida State University, College of Human Sciences, Dept. of Nutrition, Food, and Exercise Sciences. Title and description from dissertation home page (viewed Sept. 23, 2003). Includes bibliographical references.
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Transtibial amputee gait adaptation : correlating residual limb compliance to energy storing and return prosthetic foot compliance in bouncing gait /Hafner, Brian J. January 2003 (has links)
Thesis (Ph. D.)--University of Washington, 2003. / Vita. Includes bibliographical references (p. 329-334).
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CONTROL OF TOUCHDOWN IN HUMAN LOCOMOTION (ELECTROMYOGRAPHY, WALKING, KINEMATICS)Yarbrough, Nancy Victoria, 1945- January 1986 (has links)
No description available.
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Getting up to Speed: Understanding the Factors Associated with Post-stroke Gait VelocityJongsma, Adam 18 March 2014 (has links)
The factors that influence gait velocity post-stroke are not clearly understood. This thesis sought to uncover the factors associated with gait velocity, particularly those related to maximum velocity. The first of two studies investigated the associations between physical factors and preferred and maximum gait velocity. Analysis revealed that individuals with stroke were able to increase gait velocity from preferred and that this increase, along with the achieved velocity, were related to functional balance. The second study characterized the strategy individuals used to increase gait velocity, and compared between the stroke and healthy population. It also probed the relationships between cadence, step length, strategy, and post-stroke impairment. This study demonstrated that individuals with stroke rely more on cadence than step length to increase gait velocity. These results revealed the role of balance control on limiting gait velocity and the need for specific measures of impairment in research to direct clinical practice.
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Getting up to Speed: Understanding the Factors Associated with Post-stroke Gait VelocityJongsma, Adam 18 March 2014 (has links)
The factors that influence gait velocity post-stroke are not clearly understood. This thesis sought to uncover the factors associated with gait velocity, particularly those related to maximum velocity. The first of two studies investigated the associations between physical factors and preferred and maximum gait velocity. Analysis revealed that individuals with stroke were able to increase gait velocity from preferred and that this increase, along with the achieved velocity, were related to functional balance. The second study characterized the strategy individuals used to increase gait velocity, and compared between the stroke and healthy population. It also probed the relationships between cadence, step length, strategy, and post-stroke impairment. This study demonstrated that individuals with stroke rely more on cadence than step length to increase gait velocity. These results revealed the role of balance control on limiting gait velocity and the need for specific measures of impairment in research to direct clinical practice.
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A Novel Approach to Ambulatory Monitoring: An Investigation into Everyday Walking Activity in Patients With Sub-acute StrokePrajapati, Sanjay 27 July 2010 (has links)
Walking is an essential task important to recovery after stroke. However, there is a limited understanding regarding the characteristics of walking in in-patients with stroke. The objectives of this thesis were to: 1) develop an instrument capable of acquiring temporal characteristics of everyday walking; 2) investigate the quantity and control of everyday walking; and 3) profile the task-specific link between walking and cardiorespiratory response. In study 1 we developed and
validated a wireless monitoring system (ABLE system). Study 2 revealed low quantities of
everyday walking (4816 steps; SD 3247) characterized by short bout durations (59.8s; SD 23.4) and asymmetric walking. In study 3 we observed a modest task-related response in HR(19.4% HRR); however, the intensity and duration of everyday walking did not approach the guidelines for aerobic benefit. Monitoring in-patient walking can help guide clinical decision making in developing methods to maximize recovery after stroke.
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Strategies Utilized while Minimizing Ankle Motion Bilaterally and Unilaterally during Level Ground Walking and Obstacle Clearance TasksLandy, Eoghan January 2010 (has links)
A great deal of research has been done on the adaptive strategies of individuals who have been affected by a gait altering ailment, but there is little research on the adaptive strategies to imposed restrictions in the healthy population. The role of the ankle in healthy gait is to generate a “push-off” force to create forward propulsion of the body (Winter, 2004). The purpose of this thesis was to identify adaptation patterns and compensation strategies in individuals while wearing and not wearing a device to reduce ankle motion(Ankle Motion Minimizer – AMM). Motion capture and force plate data were collected to determine the lower body kinematics and joint powers during both level ground walking and obstacle avoidance tasks. Repeated Measure ANOVAs with an alpha level of 0.05 determined that differences in the ankle angles and the ankle, knee, and hip powers existed between the various conditions. Results showed that participants had a decreased range of motion and power production at the ankle joint while wearing the AMM. Meanwhile, an increase in the power bursts from the ipsilateral knee were observed during the AMM conditions as well as small increases at the contralateral ankle and ipsilateral hip during the unilateral AMM condition. EMG analysis showed a distinct muscle activation pattern for each individual muscle during the different conditions. From this investigation, individuals who are unable to produce power through the ankle joint, were able to increase power propulsion predominately at the knee to compensate for the lack of propulsion provided by the ankle, therefore allowing ambulation to continue.
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Variability of vertical ground reaction forces in patients with chronic low back pain, before and after chiropractic care.Russell, Brent S, Geil, Mark D, Wu, Jianhua, Hoiriis, Kathryn T 11 August 2011 (has links)
Introduction
Many chiropractic articles and textbooks discuss gait, but there actually has been little research into the effects of chiropractic adjustment on gait. This pilot study used a quantitative method of gait evaluation before and after a series of chiropractic visits. Hypotheses: (1) adults with chronic low back pain (CLBP) would show increased variability in vertical ground reaction forces (VGRF) while walking, as compared to healthy control subjects, and (2) that, following chiropractic care, will show decreased variability.
Methods
VGRF data were collected for 6 controls and compared to 9 CLBP participants, who were also evaluated before and after the first visit of care and over 7 visits. Data were analyzed by Mean Standard Deviation (MSD), Mean Coefficient of Variation (MCV), and the Coefficient of Variation of loading rate. Chiropractic care consisted of “high velocity low amplitude” thrust type procedures, flexion-distraction, pelvic wedges, light mobilization, and stretching.
Results
CLBP participants had somewhat greater variability and became slightly less variable post-care; differences were not significant. Limitations: Some participants had no impairment of walking at baseline; MSD is an uncommon measure, and more research is needed; these results (small group seen by a single doctor) may not be generalizable.
Conclusions
Participants with CLBP had slightly more variability and had slight decreases in variability following chiropractic care. Differences were not statistically significant. With this small pilot study as a guide, more research should be done with larger groups and improved participant selection.
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