Intravascular Atp And The Regulation Of Blood Flow And Oxygen Delivery In Humans,
2015
University of Dayton
Intravascular Atp And The Regulation Of Blood Flow And Oxygen Delivery In Humans, Anne R. Crecelius, Brett S. Kirby, Frank A. Dinenno
Health and Sport Science Faculty Publications
Regulation of vascular tone is a complex response that integrates multiple signals which allow for blood flow and oxygen supply to appropriately match oxygen demand. Here, we discuss the potential role of intravascular ATP as a primary factor in these responses and propose that deficient ATP release may contribute to impairments in vascular control exhibited in aged and diseased populations.
The Relationship Between Axonal Injury, Biomarker Expression And Mechanical Response In A Rodent Head Impact Acceleration Model,
2015
Wayne State University
The Relationship Between Axonal Injury, Biomarker Expression And Mechanical Response In A Rodent Head Impact Acceleration Model, Yan Li
Wayne State University Dissertations
In the United States 1.4 million people sustain traumatic brain injury (TBI) each year, resulting in 235,000 hospitalizations and 50,000 fatalities annually. Traumatic axonal injury (TAI) is a serious outcome of TBI that accounts for 40-50% of hospitalizations due to head injury and one third of the mortality due to TBI, and it is difficult to diagnose and evaluate. The purpose of this dissertation is to determine mechanical injury predictors for TAI and identify potential biomarkers to evaluate TAI.
In this dissertation, a modified Marmarou impact acceleration injury model was developed to allow the monitoring of velocity of the impactor …
Human Feeding Biomechanics : Intraspecific Variation And Evolution,
2015
University at Albany, State University of New York
Human Feeding Biomechanics : Intraspecific Variation And Evolution, Justin Ledogar
Legacy Theses & Dissertations (2009 - 2024)
This study examines feeding biomechanics in modern human crania and those of extinct early members of the human lineage in order to better understand the selective pressures that influenced human craniofacial evolution. Specifically, this study uses finite element analysis to examine: 1) human feeding performance, in terms bite force production and craniofacial strength; 2) intraspecific variation in human feeding biomechanics; 3) feeding biomechanics in fossil hominins, including Australopithecus sediba and Homo habilis, species that are potentially at the root of modern human lineage, and 4) the functional role of purported facial buttresses.
Musical Stairs: Encouraging Physical Activity Through Persuasive Technology,
2015
DePauw University
Musical Stairs: Encouraging Physical Activity Through Persuasive Technology, Meagan Combs 15
Honor Scholar Theses
This study examined persuasive technology and its effect on participants’ motivation to engage in physical activity. A set of musical stairs was built using infrared proximity sensors, designed to make the experience of climbing the stairs more “fun”. The software was written in such a way that each step a participant took on the stairs provided a musical response. The experiment tested three conditions: the control condition (without sounds), a condition with piano note sounds, and a condition with guitar chord sounds. The results suggest that more participants interacted with the stairs during the conditions with sound compared to the …
A Systematic Review And Meta-Analysis Of Strength Training In Individuals With Multiple Sclerosis Or Parkinson Disease,
2015
Edith Cowan University
A Systematic Review And Meta-Analysis Of Strength Training In Individuals With Multiple Sclerosis Or Parkinson Disease, Travis M. Cruickshank, Alvaro R. Reyes, Melanie R. Ziman
Research outputs 2014 to 2021
Strength training has, in recent years, been shown to be beneficial for people with Parkinson disease and multiple sclerosis. Consensus regarding its utility for these disorders nevertheless remains contentious among healthcare professionals. Greater clarity is required, especially in regards to the type and magnitude of effects as well as the response differences to strength training between individuals with Parkinson disease or multiple sclerosis. This study examines the effects, magnitude of those effects, and response differences to strength training between patients with Parkinson disease or multiple sclerosis. A comprehensive search of electronic databases including Physiotherapy Evidence Database scale, PubMed, EMBASE, Cochrane …
Altitude Exposure At 1800 M Increases Haemoglobin Mass In Distance Runners,
2015
Edith Cowan University
Altitude Exposure At 1800 M Increases Haemoglobin Mass In Distance Runners, Laura A. Gravican-Lewis, Iona Halliday, Chris R. Abbiss, Philo U. Saunders, Christopher P.J. Gore
Research outputs 2014 to 2021
The influence of low natural altitudes (< 2000 m) on erythropoietic adaptation is currently unclear, with current recommendations indicating that such low altitudes may be insufficient to stimulate significant increases in haemoglobin mass (Hbmass). As such, the purpose of this study was to determine the influence of 3 weeks of live high, train high exposure (LHTH) at low natural altitude (i.e. 1800 m) on Hbmass, red blood cell count and iron profile. A total of 16 elite or well-trained runners were assigned into either a LHTH (n = 8) or CONTROL (n = 8) group. Venous blood samples were drawn prior to, at 2 weeks and at 3 weeks following exposure. Hbmass was measured in duplicate prior to exposure and at 2 …
Lean Body Mass Associated With Upper Body Strength In Healthy Older Adults While Higher Body Fat Limits Lower Extremity Performance And Endurance,
2015
Edith Cowan University
Lean Body Mass Associated With Upper Body Strength In Healthy Older Adults While Higher Body Fat Limits Lower Extremity Performance And Endurance, Karen Charlton, Marijka Batterham, Kelly Langford, Jenna Lateo, Erin Brock, Karen Walton, Philipa Lyons-Wall, Katie Eisenhauer, Nick Green, Cameron Mclean
Research outputs 2014 to 2021
Impaired strength adversely influences an older person’s ability to perform activities of daily living. A cross-sectional study of 117 independently living men and women (age = 73.4 ± 9.4 year; body mass index (BMI) = 27.6 ± 4.8 kg/m2) aimed to assess the association between body composition and: (1) upper body strength (handgrip strength, HGS); (2) lower extremity performance (timed up and go (TUG) and sit to stand test (STS)); and (3) endurance (6-minute walk (SMWT). Body composition (% fat; lean body mass (LBM)) was assessed using bioelectrical impedance. Habitual physical activity was measured using the Minnesota Leisure Time Physical …
A Comparison Of Two Gluteus Maximus Emg Maximum Voluntary Isometric Contraction Positions,
2015
Edith Cowan University
A Comparison Of Two Gluteus Maximus Emg Maximum Voluntary Isometric Contraction Positions, Bret Contreras, Andrew D. Vigotsky, Chris Beardsley, John B. Cronin
Research outputs 2014 to 2021
Background. The purpose of this study was to compare the peak electromyography (EMG) of the most commonly-used position in the literature, the prone bent-leg (90°) hip extension against manual resistance applied to the distal thigh (PRONE), to a novel position, the standing glute squeeze (SQUEEZE). Methods. Surface EMG electrodes were placed on the upper and lower gluteus maximus of thirteen recreationally active females (age = 28.9 years; height = 164 cm; body mass = 58.2 kg), before three maximum voluntary isometric contraction (MVIC) trials for each position were obtained in a randomized, counterbalanced fashion. Results. No statistically significant (p …
Kinesiology 183 Advanced First Aid, Cpr, And Aed Fall 2015,
2015
Parkland College
Kinesiology 183 Advanced First Aid, Cpr, And Aed Fall 2015, Jessica Mcmahon
Kinesiology Courses
No abstract provided.
Kinesiology 164 Introduction To Sports And Exercise Psychology Spring 2015 Online,
2015
Parkland College
Kinesiology 164 Introduction To Sports And Exercise Psychology Spring 2015 Online, Jennifer Pridemore
Kinesiology Courses
No abstract provided.
Kinesiology 186 Human Movement Summer 2015 Online,
2015
Parkland College
Kinesiology 186 Human Movement Summer 2015 Online, Elizabeth Frasca
Kinesiology Courses
No abstract provided.
Kinesiology 288 Exercise Physiology Spring 2015,
2015
Parkland College
Kinesiology 288 Exercise Physiology Spring 2015, Toni Burkhalter
Kinesiology Courses
No abstract provided.
Kinesiology 181 Health Education Summer 2015,
2015
Parkland College
Kinesiology 181 Health Education Summer 2015, Joe Bails
Kinesiology Courses
No abstract provided.
Spatiotemporal Changes Posttreatment In Peripheral Arterial Disease,
2015
University of Nebraska at Omaha
Spatiotemporal Changes Posttreatment In Peripheral Arterial Disease, Sara A. Myers, Neil B. Huben, Jennifer M. Yentes, John D. Mccamley, Elizabeth E. Lyden, Iraklis I. Pipinos, Jason M. Johanning
Journal Articles
Accumulating evidence suggests revascularization of peripheral arterial disease (PAD) limbs results in limited improvement in functional gait parameters, suggesting underlying locomotor system pathology. Spatial and temporal (ST) gait parameters are well studied in patients with PAD at baseline and are abnormal when compared to controls. The purpose of this study was to systematically review and critically analyze the available data on ST gait parameters before and after interventions. A full review of literature was conducted and articles were included which examined ST gait parameters before and after intervention (revascularization and exercise). Thirty-three intervention articles were identified based on 154 articles …
Six Degree-Of-Freedom Analysis Of Hip, Knee, Ankle And Foot Provides Updated Understanding Of Biomechanical Work During Human Walking,
2015
University of Nebraska at Omaha
Six Degree-Of-Freedom Analysis Of Hip, Knee, Ankle And Foot Provides Updated Understanding Of Biomechanical Work During Human Walking, Karl E. Zelik, Kota Z. Takahashi, Gregory S. Sawicki
Journal Articles
Measuring biomechanical work performed by humans and other animals is critical for understanding muscle–tendon function, jointspecific contributions and energy-saving mechanisms during locomotion. Inverse dynamics is often employed to estimate jointlevel contributions, and deformable body estimates can be used to study work performed by the foot. We recently discovered that these commonly used experimental estimates fail to explain whole-body energy changes observed during human walking. By re-analyzing previously published data, we found that about 25% (8 J) of total positive energy changes of/about the body’s center-of-mass and >30% of the energy changes during the Push-off phase of walking were not explained …
A Neuromechanics-Based Powered Ankle Exoskeleton To Assist Walking Post-Stroke: A Feasibility Study,
2015
University of Nebraska at Omaha
A Neuromechanics-Based Powered Ankle Exoskeleton To Assist Walking Post-Stroke: A Feasibility Study, Kota Z. Takahashi, Michael D. Lewek, Gregory S. Sawicki
Journal Articles
Background: In persons post-stroke, diminished ankle joint function can contribute to inadequate gait propulsion. To target paretic ankle impairments, we developed a neuromechanics-based powered ankle exoskeleton. Specifically, this exoskeleton supplies plantarflexion assistance that is proportional to the user’s paretic soleus electromyography (EMG) amplitude only during a phase of gait when the stance limb is subjected to an anteriorly directed ground reaction force (GRF). The purpose of this feasibility study was to examine the short-term effects of the powered ankle exoskeleton on the mechanics and energetics of gait.
Methods: Five subjects with stroke walked with a powered ankle exoskeleton …
The Effects Of Muscle Cross-Sectional Area On The Physical Working Capacity At The Fatigue Threshold,
2015
Creighton University
The Effects Of Muscle Cross-Sectional Area On The Physical Working Capacity At The Fatigue Threshold, Meghan B. Barry, Jorge M. Zuniga, Makenna M. Brown, William M. Garnett, Zachary V. Hadden, Paul K. Nguyen, Geoffrey A. Supplee, Claire J. Svobada
Journal Articles
Purpose: The purpose of this study was to examine the effects of quadriceps cross-sectional area (CSA) of the dominant quadriceps muscle in the assessment of the physical working capacity at the fatigue threshold (PWCFT) during incremental cycle ergometry. Methods: Eighteen adults (9 men and 9 women; mean age ± SD = 20.5 ± 1.04 yr; mean body weight ± SD = 73.9 ± 18.2 kg; mean height ± SD = 172.3 ± 11.5 cm; mean dominant quadriceps CSA ± SD = 68.7 ± 14.5 cm2) performed an incremental cycle ergometry test to exhaustion while the electromyographic (EMG) signals …
Methodology For Performing Whole Body Pmhs Underbody Blast Impact Testing, And The Corresponding Response Of The Hybrid Iii Dummy And The Finite Element Dummy Model Under Similar Loading Condition,
2015
Wayne State University
Methodology For Performing Whole Body Pmhs Underbody Blast Impact Testing, And The Corresponding Response Of The Hybrid Iii Dummy And The Finite Element Dummy Model Under Similar Loading Condition, Karthik Somasundaram
Wayne State University Theses
In recent wars, the use of improvised explosive devices and landmines has dramatically increased as a tactical measure to counter armored vehicles. These weapons not only deform and damage the vehicle structure but also produce serious vertical deceleration injuries to mounted occupants. The reported injury patterns largely differ from those in an automotive crash and are often more severe than those in other vertical loading scenarios such as pilot seat ejection, helicopter crash, parachute landing and fall from height. High kinetic energy predominately along the principal vertical (Z-axis) over a short duration makes the underbody blast (UBB) loading conditions unique …
Kinesiology 145-002r Spring 2015,
2015
Parkland College
Kinesiology 181 Health Education Fall 2015 Online,
2015
Parkland College
Kinesiology 181 Health Education Fall 2015 Online, Jennifer Pridemore
Kinesiology Courses
No abstract provided.
