Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"postural perturbation"”.
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An experimental and simulation based approach toward understanding the effects of obesity on balance recovery from a postural perturbation
… injury. Most falls result from some type of postural perturbation. As such, it is important to understand how obesity influences balance recovery from a postural perturbation. There is limited information on the effects of obesity on balance recovery, and the limited available information is …
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Traumatic brain injuries and older adults: The implications of neck strength, muscle activation, and range of motion
… neck muscle activation latency in response to postural perturbation in 57 participants. Participants were divided based on age with 20 Young (18 – 30 years old), 23 Young-Old (60 – 74 years old), and 14 Old-Old (75 – 89 years old) adults being included. Participants underwent isometric neck …
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An investigation of perturbation-based balance training as a fall prevention intervention for older adults
… able to improve their ability to recover from a postural perturbation through perturbation-based balance training (PBBT), similar to the way other motor skills can be improved through training. The purpose of the first study was to investigate the effects of age and fall risk on the efficacy of …
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Maximum Absolute and Relative Joint Torques during Recovery from a Simulated Trip
… its effect on the ability to recover after a postural perturbation. The purpose of this thesis was to investigate the effects of obesity on single-step balance recovery from an incipient forward fall. Eight obese (BMI = 33.2 ± 2.4) and eight non-obese (BMI = 24.8 ± 1.8) participants were …
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Strength And Power Training To Improve Performance On Recovery From A Simulated Trip
… and improve one's ability to recover from a postural perturbation. A forward leaning task has been used to simulate the biomechanical requirements of a slip, trip or perturbation and quantify maximum recoverable forward lean angle (FLean<sub>max</sub>). We also used a lateral leaning task to …
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Effects of Obesity on Balance Recovery in Response to Small Postural Perturbations
… of falls are thought to result from some kind of postural perturbation, yet the biomechanical mechanisms as to why obese individuals fall more often is unclear. Therefore, the goal of this study was to investigate the effects of obesity on balance recovery in response to small forward postural …
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The effects of postural threat on sample entropy
… of this thesis were to 1) explore the effects of postural threat on sample entropy, a measure interpreted to reflect the attentional investment in postural control, and to 2) examine the relationships between threat-related changes in physiological arousal, perceived anxiety, attention focus, …
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A posture control model and balance test for the prediction of relative postural stability, with special consideration to the problem of falling in the elderly
… stability by the degree to which a transient postural perturbation would cause the centre-of-pressure on the feet to approach the limits of the base-of-support. To minimize anticipatory adaptations and to ensure subject safety, the balance test used a small-amplitude continuous random or …
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Efficacy of using robotics to characterize impaired upper-limb function in a non-human primate model of stroke
… using a visually guided reaching (VGR) and a postural perturbation (PP) KINARM exoskeleton robotic task. Stroke NHP task parameters were compared to control performance (2 healthy, age matched controls) for both the affected and unaffected-arms to determine impairment. Results: In the VGR …
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Experimental and simulation-based assessment of the human postural response to sagittal plane perturbations with localized muscle fatigue and aging
… that have a deleterious effect on balance and postural control such as LMF and aging. An initial study was conducted to investigate the effects of LMF and aging on balance recovery from a postural perturbation without stepping. Sagittal plane postural perturbations were administered to young …
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Gait and Postural Analysis in Healthy Young Adults and People with Parkinson's Disease
<p>Postural analysis is the study of how the position of the body in any mode interacts with internal and external forces. This type of analysis is typically used to assess potential abnormalities in the balance control system and to understand how the balance control system changes with time. …
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Identification and Modification of Risk Factors Contributing to Slip- and Trip-Induced Falls
… fatigue and balance reactions after a large postural perturbation, and, second, to develop and evaluate improved reactive balance training (RBT) interventions to reduce risk of falls due to slipping and tripping. The first study investigated the effects of performing occupationally-relevant …