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Full-Text Articles in Life Sciences
The Effect Of Bilateral Vestibular Stimulation On Locomotor Adaptation, Allison Hoover
The Effect Of Bilateral Vestibular Stimulation On Locomotor Adaptation, Allison Hoover
UNO 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 …
Augmenting Human Muscle Performance Through Added Foot Stiffness, Samuel F. Ray
Augmenting Human Muscle Performance Through Added Foot Stiffness, Samuel F. Ray
UNO 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
A Comparison Of Balance Between A Smoker And Never-Smoker, Robert J. Barber
UNO 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 deficits, compared to never-smokers. …
Treadmill Walking In Claudication, Shane Lentz
Treadmill Walking In Claudication, Shane Lentz
UNO 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
Effects Of Serial Subtractions On Elderly Gait Speed In A Virtual Reality Setting, Taylor Leeder
UNO 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 from that number …
Effects Of Whole Body Heating During Warm-Up On Strength, Power, And Flexibility, Trevor Krzyzanowski
Effects Of Whole Body Heating During Warm-Up On Strength, Power, And Flexibility, Trevor Krzyzanowski
UNO 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 at 40% humidity, …
Effect Of Unloading On Myofiber Profiles In Male And Female Rats, Hailey Ramsey
Effect Of Unloading On Myofiber Profiles In Male And Female Rats, Hailey Ramsey
Science Research Symposium
Many injuries and surgeries result in necessary muscle unloading to aid in recovery. It is known that muscle unloading can lead to muscle atrophy1. A previous study conducted in this lab found that females suffer greater decline in strength than males, as a result of unloading1. Another experiment confirmed that females are more susceptible to adaptations due to unloading and suggested that this is caused by the neural drive from the central nervous system2. This study aims to explain what causes the gender-related discrepancy in strength after unloading by looking at the effect of …
Superhero Robotics, Frank Sup, Brian Umberger, Nick Sawyer
Superhero Robotics, Frank Sup, Brian Umberger, Nick Sawyer
Science and Engineering Saturday Seminars
No abstract provided.