Open Access. Powered by Scholars. Published by Universities.®

Kinesiology Commons

Open Access. Powered by Scholars. Published by Universities.®

4985 Full-Text Articles 8603 Authors 1636472 Downloads 129 Institutions

All Articles in Kinesiology

Faceted Search

4985 full-text articles. Page 1 of 181.

Get Up, Stand Up: A Brief History Of Sedentarism And Why Movement Is Good Medicine, Robert Anthony Federico 2017 N/A

Get Up, Stand Up: A Brief History Of Sedentarism And Why Movement Is Good Medicine, Robert Anthony Federico

Journal of Evolution and Health

No abstract provided.


Do You Really Want A Hunter-Gatherer Microbiota? Perils And Pitfalls For Your Gut, Michael Ruscio 2017 Dr. Michael Ruscio

Do You Really Want A Hunter-Gatherer Microbiota? Perils And Pitfalls For Your Gut, Michael Ruscio

Journal of Evolution and Health

Clinicians have long understood the immense impact the health of our gut has on things like weight, energy, depression, autoimmunity and more. With the recent advancements in microbiota research we have learned much more about this connection. Like never before we understand how we can alleviate chronic health conditions and enhance well-being through improving the health of the gut.

However, with this increased research has also come over speculation and ill-informed recommendations. This has high impact on today's healthcare professional or consumer who could unintentionally do harm. For example by replicating the microbiota of hunter-gatherers of Africa, we could ...


P18. Backstroke Start Performance: The Impact Of Using The Omega Backstroke Ledge, Gordon E. Barkwell, James P. Dickey 2017 Western University

P18. Backstroke Start Performance: The Impact Of Using The Omega Backstroke Ledge, Gordon E. Barkwell, James P. Dickey

Western Research Forum

Background: FINA recently approved use of the “backstroke ledge” (Omega OBL2) to improve backstroke start performance in competition, but its performance has not been thoroughly evaluated. The purpose of this study was to compare starts performed on a flat wall to those performed with the OBL2, and to identify factors that contribute to better start performance. Methods: Ten elite backstroke swimmers performed three flat-wall and three OBL2 starts. Horizontal impulse, vertical impulse, takeoff velocity and takeoff angle were calculated from the force plate data. Entry distance, time to 10 m and start of hip and knee extension were recorded using ...


P17. P3b Event-Related Potentials Show Changes In Varsity Football Players Due To Accumulated Sub-Concussive Head Impacts, Jeffrey S. Brooks, James W. Thompson, James P. Dickey 2017 Western University

P17. P3b Event-Related Potentials Show Changes In Varsity Football Players Due To Accumulated Sub-Concussive Head Impacts, Jeffrey S. Brooks, James W. Thompson, James P. Dickey

Western Research Forum

BACKGROUND: Concussion has been a focus in football at all levels of participation. However, there is a growing appreciation that repetitive sub-concussive impacts may have more significant effects on overall neurological health than the isolated diagnosed concussions that have been the focus of recent research. The purpose of this study was to evaluate the relationship between the number of head impacts that players experience throughout the season and their P300 evoked potential.

METHODS: Canadian university football players (n=45) were separated into three groups based on player mass and position/skill (small-skilled, big-skilled and big-unskilled). Groups were separated into low ...


P27. Acute Impact Of An Extremely Low Frequency Magnetic Stimulus On Human Neurophysiological Function - Magnetophosphene Perception, Cadence M. Baker 2017 Western University

P27. Acute Impact Of An Extremely Low Frequency Magnetic Stimulus On Human Neurophysiological Function - Magnetophosphene Perception, Cadence M. Baker

Western Research Forum

Background: Magnetophosphenes are classified as colourless, flickering lights that are perceived with closed eyes in the dark, and upon exposure to a magnetic field (MF). Uncertainties exist involving the MF threshold for magnetophosphene perception.

Methods: Forty subjects will be enrolled in this experiment aiming to provide a frequency-response curve of magnetophosphene perception under MF exposure. Subjects will sit in a whole head MF exposure device wearing a 64-channel MRI-compatible EEG cap. Subjects will be exposed to a MF with a frequency of 5-300 Hz, in the form of an increasing flux density ramp (increasing magnetic field flux density from 0-100 ...


P30. Optimizing Current Steering In Deep Brain Stimulation For Treating Parkinsonian Axial Motor Symptoms, Daphne Hui 2017 Western University

P30. Optimizing Current Steering In Deep Brain Stimulation For Treating Parkinsonian Axial Motor Symptoms, Daphne Hui

Western Research Forum

Background: The proposed study will investigate deep brain stimulation (DBS), of the subthalamic nucleus (STN) to improve gait dysfunctions in advanced Parkinson’s Disease (PD). DBS requires implantation of electrodes into the brain that contain contacts where current traverses to stimulate neurons. Imprecise electrode implantations are inherent in surgical implantation; thus, contributing to the elusiveness of DBS on gait.

Methods: The proposed investigation will divide current between two contacts to receive 0, 30, 50, 70, or 100% of current, to find the best combination to improve gait. Gait changes associated with fractional combinations will be visually assessed with clinical scales ...


P34. The Effects Of Standing Desks On Classroom Performance Of University Students, Siobhan Smith 2017 Western University

P34. The Effects Of Standing Desks On Classroom Performance Of University Students, Siobhan Smith

Western Research Forum

Background:

It is well established that there are many health risks associated with prolonged sedentary time.1 Unfortunately, research conducted on university students is limited but yet they experience excessive periods of sitting time during class and while studying.

Methods:

Recently, we investigated the effect of sitting, dynamic sitting, and standing desks on classroom performance of university students.2 Participants performed three 3-minute classroom simulations, one for each of the three desks. The order of the desks and simulations were randomized. Each of the simulations included a different typing and memory task.

Results:

Results showed no significant difference in the ...


Psychophysiological Tracking Of A Female Physique Competitor Through Competition Preparation, Brandon Jay Rohrig, Robert W. Pettitt, Cherie Pettitt, Todd Kanzenbach 2017 Minnesota State University, Mankato

Psychophysiological Tracking Of A Female Physique Competitor Through Competition Preparation, Brandon Jay Rohrig, Robert W. Pettitt, Cherie Pettitt, Todd Kanzenbach

International Journal of Exercise Science

International Journal of Exercise Science 10(2): 301-311, 2017. Natural physique competitions are based on subjective judgments of how a competitor appears on show day. Prior to competition, there is a prolonged dieting phase referred to as contest preparation. The primary goal is to reduce body fat levels while maintaining skeletal muscle mass. The study tracked the physiological and psychological changes for a 24 year old female preparing for a physique competition. Purpose: The study was conducted to describe the physiological and psychological changes of a female physique competitor who engages in long-term contest preparation. Methods: Diet, body composition, blood ...


Movement Variability And Sensorimotor Cortical Activation During Forward And Backward Walking, Boman Groff 2017 University of Nebraska at Omaha

Movement Variability And Sensorimotor Cortical Activation During Forward And Backward Walking, Boman Groff

Student Research and Creative Activity Fair

Previous research has used functional near-infrared spectroscopy (fNIRS) to show that motor areas of the cortex are activated more while walking backward compared to walking forward. It is also known that head movement creates motion artifacts in fNIRS data. The aim of this study was to expand on previous findings by examining cortical activation during forward and backward walking, while also measuring head movement. We hypothesized that greater activation in motor areas while walking backward would be concurrent with increased head movement.

Participants (N=8) performed forward and backward walking on a treadmill. Participants wore motion capture markers on their ...


Design Of An Instrumented Cane For Real-Time Force Feedback, Samantha Sack 2017 University of Nebraska at Omaha

Design Of An Instrumented Cane For Real-Time Force Feedback, Samantha Sack

Student Research and Creative Activity Fair

Stroke is a major cause of adult disability in the United States, and many affected stroke survivors require the use of an assistive device post-stroke. Even so, the effects of these assistive devices on specific movement outcomes like propulsion in rehabilitation are not well studied. The goal of this study was to develop an instrumented cane capable of recording accurate force data and providing real-time feedback to the user. A standard, single-point cane was instrumented with a force cell that measures force applied to the cane and a motor that vibrates once a threshold value has been applied. The force ...


An Investigation Into The Correlation Between Step Width Variability And Balance Deficits In Patients With Chronic Obstructive Pulmonary Disease, Jordan Freeman 2017 University of Nebraska at Omaha

An Investigation Into The Correlation Between Step Width Variability And Balance Deficits In Patients With Chronic Obstructive Pulmonary Disease, Jordan Freeman

Student Research and Creative Activity Fair

Patients with chronic obstructive pulmonary disease (COPD) experience a higher incidence of falls. Further, gait variability has been shown to be a useful predictor of future falls. It is unknown if balance measures and gait variability are related. Our purpose was to investigate if step width (SW) variability is related to balance deficits in patients with COPD. We hypothesized that functional balance tests will closely correlate to the step width variability as compared to subjective balance questionnaires. Nine subjects with COPD and six controls performed a series of balance measures: sensory organization test (SOT), motor control test (MCT), Fullerton advanced ...


The Effect Of Bilateral Vestibular Stimulation On Locomotor Adaptation, Allison Hoover 2017 University of Nebraska at Omaha

The Effect Of Bilateral Vestibular Stimulation On Locomotor Adaptation, Allison Hoover

Student Research and Creative Activity Fair

Locomotor adaptation requires input from vision, somatosensory and vestibular systems. The contribution of the vestibular system is important for maintaining postural control during gait specifically orientation of the head on the trunk and acceleration (linear and angular) feedback. Disrupting this system causes instabilities during locomotion. However, it is not clear, how much the vestibular system contributes to gait adaptation. Eighteen healthy adults adapted to a split-belt treadmill task with or without additional vestibular perturbation using bilateral mastoid vibration. The symmetry index for step length and step time, as well as the change in standard deviation in stride time for both ...


Quantifying Static And Dynamic Stability Using Mobile Sensors, Mason Schleu 2017 mschleu

Quantifying Static And Dynamic Stability Using Mobile Sensors, Mason Schleu

Student Research and Creative Activity Fair

Balance disorders impact millions of people causing substantial impact on quality of life due to psychological and physical hardships associated with poor balance. However, a clinically relevant, low cost, self-service system in detecting such disorders does not exist. Previous research has shown the built in accelerometer and gyroscope sensors of a smart phone to be valid tools in detecting standing balance performance using traditional linear analysis, however, such a system has yet to be proven useful in detecting dynamic postural variability. Indeed, more quantitative methods than are typically used in clinical settings are necessary for early detection of poor postural ...


Augmenting Human Muscle Performance Through Added Foot Stiffness, Samuel F. Ray 2017 University of Nebraska at Omaha

Augmenting Human Muscle Performance Through Added Foot Stiffness, Samuel F. Ray

Student Research and Creative Activity Fair

In human walking, the relationship between foot and ankle structure and function is not fully known. The foot and toe structures seem to dissipate energy while the ankle generates force through the plantarflexor muscles. Increasing foot stiffness through added carbon fiber insoles has been shown to increase force output and decrease contraction velocity of the ankle plantarflexor muscles. This shift in the muscular force-velocity operating range may be beneficial in fast walking. During fast walking, muscle fascicles contract at high velocities and low force output. We predict that added foot stiffness can reduce the metabolic cost of fast walking by ...


A Comparison Of Balance Between A Smoker And Never-Smoker, Robert J. Barber 2017 University of Nebraska at Omaha

A Comparison Of Balance Between A Smoker And Never-Smoker, Robert J. Barber

Student Research and Creative Activity Fair

“Chronic obstructive pulmonary disease (COPD) the third leading cause of death in the United States.” “While COPD is defined in terms of fixed airflow limitation, it’s also characterized by the frequent association of complications outside the lung, including compromised balance.” Research has shown “medio-lateral (i.e., side-to-side) balance is altered in patients with COPD compared to controls and is further affected by challenging sensory systems (e.g., eyes closed or uneven surface).” “Smoking increases risk for onset of COPD”, therefore the objective of this study was to investigate balance in smokers. It’s hypothesized that smokers will demonstrate balance ...


Influence Of Neuromuscular Fatigue On The Reliability Of Gait Variability Measures, Nicholas Reynolds 2017 University of Nebraska at Omaha

Influence Of Neuromuscular Fatigue On The Reliability Of Gait Variability Measures, Nicholas Reynolds

Student Research and Creative Activity Fair

Walking in healthy young adults displays an optimal pattern of variability from one stride to the next. This level ensures that each step taken is not stereotyped but also not completely unpredictable. Previous studies have investigated differences in stride-to-stride characteristics comparing groups of young to groups of elderly. The consistency of gait variability measures on an individual level remains to be determined. The first aim of this study is to determine the between day and between trial consistency of gait variability measures in healthy young adults. We hypothesize that there will be a high level of consistency from day-to-day and ...


Treadmill Walking In Claudication, Shane Lentz 2017 University of Nebraska at Omaha

Treadmill Walking In Claudication, Shane Lentz

Student Research and Creative Activity Fair

INTRO. Claudication is lower leg pain that resides with rest. There are two potential causes of claudication: Peripheral Arterial Disease (PAD) and Lumbar Spinal Stenosis (LSS). Vasculogenic claudication is the defining characteristic of PAD. There is little research that exists to differentiate the two forms of claudication and there is little no non-invasive to determine which condition is causing the claudication. The purpose of this study is to utilize biomechanics to distinguish between individuals with claudication that arises from neurogenic versus vasculogenic causes. METHODS. Four LSS subjects completed a walking test on a treadmill (Gardner Test). The treadmill is pressure ...


Effects Of Serial Subtractions On Elderly Gait Speed In A Virtual Reality Setting, Taylor Leeder 2017 University of Nebraska at Omaha

Effects Of Serial Subtractions On Elderly Gait Speed In A Virtual Reality Setting, Taylor Leeder

Student Research and Creative Activity Fair

Falls are the leading cause of fatal injuries in older adults aged 65+ with one in three adults falling each year. Cognitive processes are involved in gait, and thus, as cognitive changes are normative with age, this may impact fall risk in the elderly. Sixteen older adults aged 70.8±5.3 years took part in a dual-task (DT) study where they walked on a split-belt self-paced treadmill with and without a virtual reality (VR) setting while simultaneously performing a serial subtraction (SS) task. For SS, individuals were given a random 3-digit starting number and told to subtract by three ...


Effects Of Whole Body Heating During Warm-Up On Strength, Power, And Flexibility, Trevor Krzyzanowski 2017 University of Nebraska at Omaha

Effects Of Whole Body Heating During Warm-Up On Strength, Power, And Flexibility, Trevor Krzyzanowski

Student Research and Creative Activity Fair

Background/Hypothesis: There has been little research investigating the use of external heat to enhance muscular performance. The purpose of this study is to compare the differences between warming up in a hot (H) and neutral (N) temperature environment on muscle performance. Methods: Seven (M:3/F:4) Division I collegiate athletes (age = 20 ± 1; weight = 78.8 ± 24.7 kg; height = 176.2 ± 7.6 cm; body fat 19.7 ± 11.3%) each completed 2-trials in a randomized, counter-balanced order. Subjects warmed up in a temperature and humidity controlled chamber at 20 °C (N) and 40 °C (H), both ...


An Investigation In Muscle Activation During Load Carrying, Sidney Baudendistel 2017 University of Nebraska at Omaha

An Investigation In Muscle Activation During Load Carrying, Sidney Baudendistel

Student Research and Creative Activity Fair

Carrying items is essential to everyday living, but is often reported to be a functional limitation in individuals with respiratory dysfunction. The interaction between breathing and carrying a bimanual load (i.e., carrying an evenly distributed load in each hand) is not well understood and limits the capacity to derive interventions to address functional limitations. The purpose of this study was to examine the effect of two bimanual loads, 10% and 5% of body weight, on gait. Fourteen healthy, young adults walked with and without a load on each wrist (2.5 and 5% of body weight) using wrist weights ...


Digital Commons powered by bepress