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Full-Text Articles in Health and Physical 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, …