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Full-Text Articles in Education
Effect Of Concentrated Carbohydrate-Electrolyte Gel On Moderate-Intensity Intermittent Exercise, Sarah M. Handlogten
Effect Of Concentrated Carbohydrate-Electrolyte Gel On Moderate-Intensity Intermittent Exercise, Sarah M. Handlogten
Masters Theses
The researcher compared the effects of a carbohydrate-electrolyte (CE) gel and water ingested 5 min before and after 20 min of moderate-intensity running for I hour. Six dependent variables were measured: heart rate (HR), VO2, blood glucose, respiratory exchange ratio (R), rating of perceived exertion (RPE), and timed exercise performance. Independent variables were condition, trials (2), and sample time. On 4 days, subjects completed a 60-min training run at 65% of maximal oxygen consumption in 20-min bouts with 3-min rests between bouts. A timed 200-m sprint followed each run. Two trials were completed with each condition. Water was …
The Reliability Of Emg Normalization Procedures For Three Muscles Involved In Knee Extension, James John Sweet
The Reliability Of Emg Normalization Procedures For Three Muscles Involved In Knee Extension, James John Sweet
Masters Theses
Analyses of 3 knee extensors, vastus medialis, rectus femoris, and vastus lateralis, were conducted to examine the reliability of (a) maximal voluntary isometric contraction (MVIC) across trials (2), days (5), and joint angles (5); and (b) normalized EMG responses during dynamic knee extension at 2 submaximal work loads. Strength (cable tension) and integrated peak EMG (surface electrodes) were measured during the MVIC. Subjects (N = 44) performed 2 consecutive MVICs with 2 min rest between trials at 110°, 90°, 70°, 50°, and 30° of knee flexion, followed by 2 submaximal dynamic knee extension exercises. Intraclass correlation (R) values for the …
The Effects Of Step Height, Cadence, And Choreography On Biochemical Factors In Step Aerobics, Stacie Moore
The Effects Of Step Height, Cadence, And Choreography On Biochemical Factors In Step Aerobics, Stacie Moore
Masters Theses
The problem of the study was to determine the effect of step height, speed, and choreography on ground reaction forces, electromyography of the knee extensors, and center of gravity displacement in step aerobics. Two step heights, 6 and 8 in.; two speeds, 126 and 132 bpm; and three steps, basic step, tum step, and hop step, were studied for a single subject across 5 trials. The muscles studied included the rectus femoris, vastus lateralis, and vastus medialis. Results indicated: (a) significant difference existed between the cadences as well as between the step heights for the sagittal plane center of gravity; …
The Effect Of Caffeine On Reaction Time, Hand Steadiness, And Certain Physiological Variables, Amy K. Ryan
The Effect Of Caffeine On Reaction Time, Hand Steadiness, And Certain Physiological Variables, Amy K. Ryan
Masters Theses
The problem of this study was to analyze the effect of caffeine on heart rate, blood pressure, reaction time, and hand steadiness. Subjects (N = 20) were classified as high-caffeine users or low-caffeine users. Heart rate, blood pressure, reaction time, and hand steadiness were measured. Subjects then consumed 24 oz of coffee containing 345 mg of caffeine in a 5-min period. Dependent variables were measured again at 30, 60, and 90 min after caffeine administration. Significant differences were found among test time means for every dependent variable except hand steadiness. No difference was found between the high-caffeine-use group and the …
The Effect Of Unloading Body Weight During Aerobic Exercise On Blood Pressure, Heart Rate, And Perceived Exertion, Carolynn J. Bolander
The Effect Of Unloading Body Weight During Aerobic Exercise On Blood Pressure, Heart Rate, And Perceived Exertion, Carolynn J. Bolander
Masters Theses
The problem of the study was to examine the blood pressure, heart rate, and rating of perceived exertion of asymptomatic, active individuals during submaximal treadmill exercise while using an unloading system. Two levels of unloading, 20% unloaded body weight (UBW) and 40% UBW, were compared to 0% UBW. Treadmill speed was determined by the speed required to reach a steady state heart rate of 70% of maximum heart rate in an unloaded state. Twenty subjects, between the ages of 18 and 42 years, served as subjects. Subjects were grouped with respect to fitness level; walkers were those subjects who walked …
Effects Of The Prbar And Powerbar On Fat Metabolism, Chad F. Witt
Effects Of The Prbar And Powerbar On Fat Metabolism, Chad F. Witt
Masters Theses
The purpose was to compare the effect of dietary supplementation using two different energy bars, the PRBar and the PowerBar, ingested 1 hour before exercise, on the exercise metabolism of endurance athletes. Four dependent variables were measured: respiratory exchange ratio (R), oxygen consumption (VO2), rating of perceived exertion (RPE), and blood glucose. Independent variables were bars (2), trials (2), and sample time. Sample times occurred at 5-min intervals for R, VO2, and RPE. Blood glucose was sampled before exercise, at 15 min and 25 min during exercise, and after exercise. Subjects completed four 35-min training runs, …
A Comparison Of Measures In Physical Fitness And Biological Maturity Between Female Gymnasts And Females Not Involved In Organized Sport, Cara Kokenes
Masters Theses
The purpose of this study was to investigate differences in physical fitness and biological development between two groups of twelve year old females. One group consisted of idividuals who had been involved in competitive sport for at least two years while the other group was not involved in organized sport. Two groups of 20 subjects were examined in terms of height, weight, flexibility, strength, body composition, maturation, eating attitudes, and cardiorespiratory endurance. The results indicated that the gymnasts were significantly (p<.05) shorter, lighter, stronger in regard to left hand grip strength, lower in percent body fat, less biologically mature, and had greater cardiorespiratory fitness than the non-gymnasts. No significant differences were observed in right hand grip strength or eating attitudes. It was concluded that maturation level as well as gymnastic training played a major role in influencing values obtained through measurements of physical fitness.
The Effects Of Habitual Physical Activity On Number Of Colds And Incidence Of Cold Symptoms, Katie Lynn Maniatis
The Effects Of Habitual Physical Activity On Number Of Colds And Incidence Of Cold Symptoms, Katie Lynn Maniatis
Masters Theses
The purpose of this investigation was to compare frequency of colds and symptoms of upper respiratory infection in college students who have different levels of habitual physical activity. Subjects were Eastern Illinois University students (N=535, aged 18-25). A survey was conducted which included questions inquiring about demographic information, physical activity habits, the number of colds contracted the month before the survey, and symptom number and severity. Data collection occurred between February 12th and March 1st, 1998. This particular time period was chosen for several reasons, including that student stress level should have been lower than at the beginning or end …