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Anaerobic recovery and physical activity in normal and obese children莊硯琦, Chong, Yin-kei, Doris. January 2001 (has links)
published_or_final_version / Sports Science / Master / Master of Science in Sports Science
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AN EVALUATION OF LACTATE AND RESPIRATORY RESPONSES TO INCREMENTAL AND CONSTANT LOAD WORK BOUTS.CONSTABLE, STEFAN HARRY. January 1982 (has links)
An attempt was made to evaluate the applicability of a theorized model concerning plasma lactic acid kinetics to running performance assessment. This model incorporated two distinct lactate thresholds identified as the aerobic threshold (AerT) and the anaerobic threshold (AT). Two groups of males with different levels of fitness were tested. Group 1 (n = 5) consisted of recreational athletes (͞X VO₂ max = 49.3 ml/kg•min⁻¹) who ran less than 20 miles per week, while Group 2 (n = 6) were highly trained runners (͞X VO₂ max = 65.5 ml/kg•min⁻¹) who all ran at least 40 miles per week. All subjects participated in two incremental work load (IWL) and four constant work load (CWL) tests that consisted of horizontal treadmill running at different speeds. The IWL tests elicited linear increases in VO₂ and were highly correlated for both Group 1 (r = .986) and Group 2 (r = .999). However, three unbiased observers found the identification of both AerT and AT, using independent lactate and respiratory gas exchange "breakpoints," very subjective in nature. The test-retest reliablity was generally poor and varied considerably among both the observers and the individual predictor variables. The validity of the respiratory gas exchange predictors was then evaluated against the criterion lactate thresholds using the estimates of a fourth, more experienced observer. The resultant correlation coefficients were generally not high, while t-test evaluation demonstrated significant (p < .05) differences in fifty percent of the cases. This same observer then pooled all of the ventilatory predictors in an effort to better estimate both AerT and AT indirectly. These indirect ventilatory estimates consistently underpredicted the criterion lactate thresholds. This finding suggests that increases in running speeds may confound the normal associate between plasma lactate and ventilation at increasing work levels. Arbitrary lactate concentrations of 2mmol/2 and 4 mmol/L were further evaluated as threshold predictors. This methodology consistently overpredicted the criterion lactate thresholds in terms of VO₂. When any of these AerT and AT threshold estimates were compared to the lactate responses during the appropriate CWL test, no meaningful relationship were found. These observations question the physiological significance of both AerT and AT evaluation during treadmill running, as well as pointing out the difficulty in reliably detecting both plasma lactate thresholds regardless of the methodology.
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A COMPARISON OF MAXIMAL OXYGEN UPTAKE ON HORIZONTAL VS. INCLINED TREADMILL PROTOCOLS BEFORE AND AFTER AN INCLINED TERRAIN RUNNING PROGRAM.Freund, Beau Jeffere. January 1983 (has links)
No description available.
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THE INFLUENCE OF ACTUAL AND SIMULATED RELATIVE BODY FAT ON OXYGEN CONSUMPTION WHILE WALKING AND RUNNING ON A TREADMILL.Kirschner, Lisa Ann. January 1984 (has links)
No description available.
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The Significance of Time to Exhaustion at the Velocity at VO2MaxEhler, Karen 05 1900 (has links)
There were two primary goals in this investigation. The first goal was to determine if inter-individual variability in time to exhaustion at the velocity associated with V02max (Tlim at Vmax) was explained by anaerobic capacity (AC), Vmax, anaerobic threshold (AT), and/or a combination variable in the form [AC • (Vmax - vAT)^-1]. The second goal was to determine if AC could be predicted from Tlim at Vmax, AT, and/or a combination variable in the form [Tlim • (Vmax - vAT)].
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Measurement of breath-by-breath oxygen consumption and carbon dioxide production in exercising calvesCreel, Earl E January 2011 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
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Forward skating in ice hockey : comparison of EMG activation patterns of [sic] at three velocities using a skate treadmillGoudreault, Robin. January 2002 (has links)
No description available.
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Reliability of a one-mile Rockport Fitness Walking TestLaurie, Nicolette E. 25 August 1997 (has links)
A modified version of the Rockport Fitness Walking Test (RFWT)
has been determined to be reliable for persons with mental retardation.
Previous investigations have used one pacer for each participant. While
this protocol may be reliable, it is not likely feasible in most school or
community-based settings. Therefore, the purpose of this study is
twofold: first to evaluate the reliability of a modified version of the RFWT
using one pacer per five participants; second, to determine the
agreement among the one to one protocol and the proposed five to one
protocol. This study compared the end completion times and mean peak
heart rates of three different one-mile walking sessions of 35 participants
with mild mental retardation. Eighteen females (21.1 �� 2.7 yr.) and 17
males (19.7 �� 2.8 yr.) participated in each testing session. Each
participant randomly completed two sessions of walking with one pacer
per five participants and one session of one pacer per participant on an
indoor surface 1/9th of a mile long. Results from ANOVA indicated end
completion times and mean peak heart rates did not differ based on
gender (p=0.798), sessions (p=0.053), and gender x sessions (p=0.855).
To determine agreement, intraclass correlation coefficients (ICC) were calculated for end completion times for the first five to one and the one to
one (R=0.83) and the second five to one and the one to one (R=0.85).
ICC's were calculated for mean peak heart rates for the first five to one
and the one to one (R=0.95) and for the second five to one and the one to
one (R=0.93). The results support that the five to one modified walking
protocol produces results similar to the results using the one to one
testing. / Graduation date: 1998
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Is recovery a better marker of dysfunction than peak VO2 in children post operative pulmonary stenosis?Chan, Michael, 陳志彬 January 2005 (has links)
published_or_final_version / Sports Science / Master / Master of Science in Sports Science
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The validity of the polar ownindextm as a measure of aerobic fitness in 10-11 year old girls and boysWong, Man-tim., 黃民添. January 2005 (has links)
published_or_final_version / Sports Science / Master / Master of Science in Sports Science
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