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Full-Text Articles in Life Sciences
The Relationship Between Linear And Nonlinear Analysis On Activity Data, Katlyn J. Nimtz
The Relationship Between Linear And Nonlinear Analysis On Activity Data, Katlyn J. Nimtz
UNO Student Research and Creative Activity Fair
Activity monitoring in older adults is a great way to predict disability without interfering in their daily life. We can analyze that data using linear and nonlinear analysis. While linear analysis measures the variation of activity during a specific period of time (i.e., mean, standard deviation), nonlinear analysis focuses on the evolution of activity over a period of time. Therefore, the purpose of this study was to observe the relationship between linear and nonlinear analysis of activity data obtained by activity monitoring in older adults. Eight participants wore an activity monitor around their waist for seven days. Linear analysis was …
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 …
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, …