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Articles 181 - 190 of 190
Full-Text Articles in Kinesiology
Coordination Of The Lower Extremity Muscles During Gait Transitions, Lorna Louise Ogden
Coordination Of The Lower Extremity Muscles During Gait Transitions, Lorna Louise Ogden
LSU Master's Theses
Often the approach to investigating muscular coordination during transitions entailed conducting tests at speeds held constant. This study investigated muscular activity during continuously changing speeds in order to further detail and quantify neuromuscular changes during gait transitions. Twelve healthy adults, 18-41 years of age, were recruited as participants. Informed consent was obtained. Gait transitions were induced by the speed of the treadmill changing with constant acceleration. Reflective markers were placed on anatomical landmarks of the hip, knee,ankle, heel, and 5 th metatarsal joint. Bipolar surface electrodes were positioned on the subjects’skin over the muscular bellies of the gluteus maximus (GM), …
Leg-Extensor Strength And Continuous-Scale Physical Functional Performance In Independent-Living Older Adults, Kathryn O'Bryan Wilson
Leg-Extensor Strength And Continuous-Scale Physical Functional Performance In Independent-Living Older Adults, Kathryn O'Bryan Wilson
LSU Master's Theses
A clear relationship between age-related decrements in leg strength and physical function have been reported. The purpose of this investigation was to describe the relationship between quadriceps strength tested at various velocities and the CS-PFP 10 items. Thirty-three older adults (ages 70-95 years) were assessed using the CS-PFP 10 test battery and performed quadriceps strength testing at 0, 90, 180º/sec using the Biodex dynamometer. Values for torque are reported as peak torque (PT) and relative peak torque (AdjPT) in Nm/kg body weight. The range of values for PT was (PT0: 20.2-144.3 Nm; PT90: 14-113.6 Nm; PT180: 9.6-86.4 Nm). Simple correlation …
A Comparison Of Self-Report And Performance-Based Measures Of Physical Function In Older Adults, Amy Elizabeth Dunbar
A Comparison Of Self-Report And Performance-Based Measures Of Physical Function In Older Adults, Amy Elizabeth Dunbar
LSU Master's Theses
The purpose of this thesis was to examine the associations between perceived quality of life (QOL)and self-report and performance-based measures of function. An additional purpose of this thesis was to determine whether the afore-mentioned tests could differentiate between independent-living and assisted-living older adults. A total of 36 residents, independent-living (n=22) and assisted-living (n=14), of a continuing care retirement community (age range=65-94) completed the study. Perceived QOL was assessed using the SF-36 and Nottingham Health Profile. The Barthel Index and Functional Status Index (FSI) were used to assess Activities of Daily Living (ADLs). Physical function was measured using the reduced Continuous …
One-Week Stability Of Forearm Venous Outflow As Assessed By Venous Occlusion Plethysmography, Jennifer Pitre Ortego
One-Week Stability Of Forearm Venous Outflow As Assessed By Venous Occlusion Plethysmography, Jennifer Pitre Ortego
LSU Master's Theses
The aim of this study was to test short-term and long-term reliability of venous outflow (VO) indices using the venous occlusion plethysmography technique. A secondary purpose was to compare venous measures to age, gender and various anthropometrical measures. The study group consisted of apparently healthy males and females, aged 18 to 80 years. Venous indices were under measures on two occasions (1 week apart), under the conditions of rest and following 5 min of upper arm occlusion. Venous outflow measures were calculated from the area under the curve (AUC) as well as the plethysmographic curve technique at the time .5 …
Effects Of High-Load Eccentric Exercise Training On Rat Soleus Muscle Myofibrillar Disruption Following One-Week Of Hindlimb Suspension Unloading And Subsequent Reloading, Rhonda Dianne Prisby
Effects Of High-Load Eccentric Exercise Training On Rat Soleus Muscle Myofibrillar Disruption Following One-Week Of Hindlimb Suspension Unloading And Subsequent Reloading, Rhonda Dianne Prisby
LSU Doctoral Dissertations
Purpose: This investigation evaluated the effects of a high-load (50% body weight) eccentric exercise training protocol on reloading myofibrillar damage in soleus (SOL) and extensor digitorum longus (EDL) muscles in rats following 7 days (d) of hindlimb suspension unloading (HSU). Methods: 48 female Sprague-Dawley rats were randomly stratified to four experimental groups; exercise + hindlimb suspension unloading (ExHSU), hindlimb suspension unloading (HSU), exercise (Ex) and control (C). The ExHSU and Ex groups underwent a high-load eccentric exercise protocol for ~2.5 weeks. Following exercise training, the ExHSU and HSU groups underwent 7 d of hindlimb suspension unloading and a subsequent 16-19 …
Investigation Of The Differences Between Inertial And Cadence Effects On Neuromuscular Coordination During Cycling, Brian Svercauski Baum
Investigation Of The Differences Between Inertial And Cadence Effects On Neuromuscular Coordination During Cycling, Brian Svercauski Baum
LSU Master's Theses
Muscular activity and coordination may be influenced by movement speed and the inertial properties of the limbs. Some observed effects from investigations using cycling have been attributed to inertia, especially at greater pedaling speeds (cadences); however, in these investigations, movement speed and inertia were coupled. Therefore, the purpose of this experiment was to investigate and distinguish between the effects of cadence and inertial influences on lower extremity neuromuscular coordination during cycling. This was achieved by subjects cycling at different cadences and with different loads attached to the distal ends of their thighs. Electromyographic (EMG) data of seven lower extremity muscles …
The Time-Course Of Vascular Adaptations Following Localized Short Term Exercise Training, Jason David Allen
The Time-Course Of Vascular Adaptations Following Localized Short Term Exercise Training, Jason David Allen
LSU Doctoral Dissertations
This is a series of 3 experiments in the area of vasoreactivity. The first study investigated the stability and reproducibility of brachial artery flow-mediated dilation (BAFMD). Twenty-six healthy volunteers underwent 3 scans on 2 days, performed by 2 ultrasonographers, and analyzed by 2 readers. All subjects were tested between 7 and 11am after refraining from food and exercise. Average baseline diameter was 3.48±0.53mm, which increased to 3.71±0.57mm (6.58±4.15%) at peak dilation. ICCC's for days, testers and readers were 0.9188, 0.9394, and 0.8982 respectively. To detect a difference in vasoreactivity of 60% (two-tailed), e.g. 5% vasodilation versus 8% vasodilation, at 90% …
Influence Of Short-Term Endurance Exercise Training On Heart Rate Variability, Clarence Matthew Lee
Influence Of Short-Term Endurance Exercise Training On Heart Rate Variability, Clarence Matthew Lee
LSU Doctoral Dissertations
The purpose of this investigation was to determine if 8 exercise endurance training (ET) sessions over 2 weeks significantly alters cardiac autonomic modulation, as measured by heart rate variability (HRV). Twenty-four college-aged males were recruited for this study and were randomized into either an exercise group (EX; n=12) or a control group (CT; n=12). EX underwent 2 weeks of ET on a cycle-ergometer (frequency: four times/week; duration: 40 minutes; intensity 80-85% HRreserve), whereas CT was instructed not to alter their previous level of physical activity. Five-minute ECG tracings were collected for HRV under the following conditions: 5 minutes of paced …
A Test Construction Study Of Sport-Type Motor Educability For College Men., Arthur R. Adams
A Test Construction Study Of Sport-Type Motor Educability For College Men., Arthur R. Adams
LSU Historical Dissertations and Theses
No abstract provided.
A Study Of The Relationship Of Performance In Certain Generally Accepted Tests Of Physical Fitness To Circulatory - Respiratory Capacity Of Normal College Men., Walter L. Russell
A Study Of The Relationship Of Performance In Certain Generally Accepted Tests Of Physical Fitness To Circulatory - Respiratory Capacity Of Normal College Men., Walter L. Russell
LSU Historical Dissertations and Theses
No abstract provided.