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Full-Text Articles in Biomechanics
Efficacy Of A Cycling Intervention With Pedal Reaction Force Augmented Feedback On Reducing Inter-Limb Asymmetries In Patients With Unilateral Total Knee Arthroplasty, Erik T. Hummer
Doctoral Dissertations
Fifteen patients with unilateral total knee arthroplasty (TKA) performed cycling at two workates (80 W and 100 W) and two walking conditions (preferred and fast speeds). Ten of these patients of TKA also participated in a short-term cycling intervention paired with visual augmented feedback of vertical pedal reaction forces for six sessions over two-three weeks. These ten patients of TKA participated in a 2nd post-training testing session. Study One compared the knee joint biomechanics for all fifteen participants during stationary cycling to ascertain if any biomechanical asymmetries may be present. The replaced limbs displayed significantly lower peak knee extension …
Upper Extremity Kinematics And Pain Outcomes During Activities Of Daily Living In Pediatric Hypermobile Ehlers-Danlos Syndrome, Olivia Yanez Wilwert
Upper Extremity Kinematics And Pain Outcomes During Activities Of Daily Living In Pediatric Hypermobile Ehlers-Danlos Syndrome, Olivia Yanez Wilwert
Theses and Dissertations
Ehlers-Danlos syndrome (EDS) is a group of heritable connective tissue disorders, consisting of thirteen different subtypes. Among the thirteen, Hypermobile Ehlers Danlos Syndrome (hEDS) is the most common. Individuals with this condition present with frequent joint instability that results in ongoing subluxations and dislocations. Secondary diagnoses of this condition include chronic pain, Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), Major Depressive Disorder (MDD), and Generalized Anxiety Disorder (GAD). The diagnostic process of hEDS is convoluted by the lack of a genetic identifier (Malfait et al., 2017). Individuals with hEDS are often not diagnosed until later in adulthood, leaving their adolescent life full …
Biomechanics Of Independent Wheelchair Transfer In Individuals With Spinal Cord Injury, Ashleigh L. Fults
Biomechanics Of Independent Wheelchair Transfer In Individuals With Spinal Cord Injury, Ashleigh L. Fults
USF Tampa Graduate Theses and Dissertations
AbstractIndividuals with a low level spinal cord injury (SCI) at T1 or below must use a wheelchair for mobility and in order to accomplish daily activities, such as using a recreational wheelchair for sports. These individuals must transfer into and out of their wheelchair several times a day. It is most beneficial for the individual to complete these transfers independently, without the help of a caretaker or assistive device. It is important that these transfers be successful and safe, because improper technique can result in a serious injury from a fall or by repeated small damage to the arms and …
Eye-Hand Coordination Varies According To Changes In Cognitive-Motor Load And Eye Movements Used, Matthew Alan Yeomans
Eye-Hand Coordination Varies According To Changes In Cognitive-Motor Load And Eye Movements Used, Matthew Alan Yeomans
LSU Doctoral Dissertations
In this dissertation three studies were used to help improve the understanding of eye- hand coordination control of visuomotor reaching tasks with varying cognitive loads. Specifically, we considered potential performance differences based on eye-movements, postural influences, as well as fitness level of the young adult participants. A brief introduction in chapter 1 is followed by a detailed literature review in chapter 2. Results from the three studies presented in chapter’s 3-5 further advance our knowledge of the integrated control used for goal-directed visually-guided reaches. In the first study (chapter 3), the additional cost associated with the use of smooth pursuit …
Transition Step Mechanics: How Influential Are Age And Fall History?, Emily Elizabeth Gerstle
Transition Step Mechanics: How Influential Are Age And Fall History?, Emily Elizabeth Gerstle
Theses and Dissertations
The purpose of this dissertation was to identify modifiable lower extremity kinematic and neuromuscular factors associated with step clearance and foot placement during transition step negotiation in older adult females with a history of falling. Specifically a full understanding of the contributions of bilateral joints of the hip, knee, and ankle during step clearance and landing was investigated (Chapter 2). Additionally to further understand how the task is accomplished, we examined the neuromuscular demands required to perform the previously mentioned kinematics (Chapter 3). Finally, to expand upon the knowledge of the multi-segment foot, the kinematics of the distal foot were …
Geometric Visual Illusion Effects On Visual Perception And Visuomotor Control: Emphasis On The Vertical-Horizontal Illusion, Shijun Yan
LSU Doctoral Dissertations
The focus of this dissertation was to explore the effects of potential vertical-horizontal (V-H) illusory influences on perceptuomotor control. As part of this focus, we examined the potential use of separate cortical visual streams: the ventral visual stream for perception and the dorsal visual stream for action. Three studies were conducted to determine the effects of the V-H illusion influences on length estimations using upper limb point-to-point movements and lower limb stepping movements, involving various illusory configurations, movement directions, gaze directions. After a short introduction (Chapter 1) and a more detailed review of existing literature (Chapter 2), we present manuscripts …
The Effects Of Advancing Stages Of Pregnancy On Balance And Stair Locomotion In Healthy Females, Heather Vanderhoof
The Effects Of Advancing Stages Of Pregnancy On Balance And Stair Locomotion In Healthy Females, Heather Vanderhoof
Open Access Theses & Dissertations
Background: One in four females fall while pregnant, which may lead to injury, hospitalization, or birth complications. No empirical research has been conducted on single-limb support (SLS) balance or joint kinematics during stair locomotion in pregnant and postpartum females. The aim of this study was to quantify possible alterations to postural control and stair kinematics in advancing stages of pregnancy when compared to non-pregnant females. Methods: This cross-sectional study compared eighteen females, consisting of six non-pregnant controls, five 2nd trimester, four 3rd trimester, and three postpartum. Center of pressure excursion area data were obtained during static balance trials on a …
The Independence Effects Of Gravitational And Inertial Forces On Gait Transitions In Humans, Nathan Frakes
The Independence Effects Of Gravitational And Inertial Forces On Gait Transitions In Humans, Nathan Frakes
Cal Poly Humboldt theses and projects
The Dynamic Similarity hypothesis suggests gravitational and inertial forces plays a role in determining preferred transition speed (PTS) for walk to run transitions (WRT) and run to walk transitions (RWT), and that humans prefer to transition gait when the ratio of inertial force (IF) to gravitational force (GF) (i.e. Froude #) is ~0.5. Purpose: To investigate the effect of gravitational and inertial forces on PTS, Froude # (Fr) and kinematics for both WRT and RWT. Methods: Twelve healthy adults (9 M, 3 F) performed WRT and RWT trials on a treadmill across seven combinations of altered body weight (BW) and …