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Resting forearm blood-tissue lactate and gas exchange kinetics during supine leg exerciseCatcheside, Peter. January 1999 (has links) (PDF)
Bibliography: leaves 230-255. The work described in this thesis was stimulated by the observation that during leg exercise, resting forearm lactate kinetics appear to resemble closely the blood-tissue exchange kinetics of inert gases that have been reported in many organs during inert gas inhalation. Two mathematical models of forearm lactate uptake were developed, and three series of experiments were conducted to investigate the contribution and impact of passive (inert-like) lactate movements to veno-arterial concentration differences in the resting forearm during leg exercise. The results are discussed.
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Resting forearm blood-tissue lactate and gas exchange kinetics during supine leg exercise / by Peter Catcheside.Catcheside, Peter January 1999 (has links)
Bibliography: leaves 230-255. / xv, 255 leaves : ill. (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / The work described in this thesis was stimulated by the observation that during leg exercise, resting forearm lactate kinetics appear to resemble closely the blood-tissue exchange kinetics of inert gases that have been reported in many organs during inert gas inhalation. Two mathematical models of forearm lactate uptake were developed, and three series of experiments were conducted to investigate the contribution and impact of passive (inert-like) lactate movements to veno-arterial concentration differences in the resting forearm during leg exercise. The results are discussed. / Thesis (Ph.D.)--University of Adelaide, Dept. of Physiology, 2000
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Resting forearm blood-tissue lactate and gas exchange kinetics during supine leg exercise /Catcheside, Peter. January 1999 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Physiology, 2000. / Bibliography: leaves 230-255.
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Laktazidose unter Biguanidbehandlung Ursache, Behandlung und Konsequenzen /Unger, Elke von, January 1979 (has links)
Thesis (doctoral)--Ludwig Maximilians-Universität zu München, 1979.
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Die Milchsäure ein Beitrag zur Kenntnis ihres Vorkommens und ihrer Bestimmung im Wein /Hübner, Wilhelm, January 1903 (has links)
Thesis (doctoral)--Friedrich-Wilhelms-Universität, Bonn, 1903.
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The effects of endurance training on lactate production and removal during progressive exercise in manMacrae, Holden Steve-Henry January 1991 (has links)
It is a well-documented finding that blood lactate concentrations at any given absolute or relative (% of maximum oxygen uptake; % VO₂ₘₐₓ) workload, are lower following endurance training. The search for the mechanisms responsible for lower blood lactate concentrations after training, however, has led to conflicting results, particularly when the possible causes of this finding have been investigated in humans. In this study, three questions related to the effects of endurance training on lactate metabolism were investigated.
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Lactate accumulation during exercise - the influence of body fluid shifts.Castleman, Barbara Ann 25 June 1999 (has links)
Thesis (M.Sc.)--University of the Witwatersrand, Faculty of Medicine, 1998. / During graded exercise, an intensity is reached where a subjects
ability to remove lactate lags behind the rate of lactace
production. The influence of body fluid shifts, during exercise
of increasing intensity, on the pattern of the blood lactate
response was studied.
The maximal oxygen uptake (V02 max) was measured using a
treadmill, on eleven subjects. Subsequently, lactate
accumulation in venous blood was measured, in triplicate, up to
an oxygen consumption greater than 90% V02max. During all
exercise, oxygen consumption was measured using an online system.
In addition, the blood samples at each workload were used to
determine haematocrit (Hct) and haemoglobin (Hb) levels.
The Hct and Hb values were used to calculate lactate accumulation
(corrected for body fluid shifts) as opposed to the absolute or
total lactate levels. The correction for body fluid shifts was
done using two techniques. The one using haematocrit only and the
other using both haematocrit and haemoglobin. The total and
accumulated lactate levels were related to %V02max using two
different models. Firstly, a lactate threshold (LT) was
determined using the classic lactate turning point (LTP) concept,
(ie. two straight lines fitted to the data points) . These Tines
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were computer generated. The intercept of the two lines (LT) was
compared for total lactate against accumulated lactate
(calculated using Hct alone and secondly Hct in combination with
Hb. In the latter cases, both the LT intercepts were shifted
slightly to the right (ie. to a higher % of V02max) . The average
difference in LT when adjusting with Hb and Hct was 0,519 of
%V02max (0,72% change) and when adjusting with Hct only was 1,17
of %V02 max (1,65% change).
Secondly, an exponential curve was fitted by regression to the
data (r=0.989+/-0.018). A substantial shift in the curve, both
down and to the right, was obtained when adjusting total lactate
to accumulated lactate. The %V02 max at a lactate concentration
of 4 mmol/I was used to define the position of the curve. The
difference when using Hct alone to calculate accumulated lactate
corrected for fluid shift was - 9,20% of V02max (p<0.05), and
when using Hb and Hct in combination, -8,71% of V02max (p<0,05) .
It is concluded that expressing the lactate curve as an
accumulated curve (corrected for body fluid shifts), rather than
in absolute terms, significantly alters the construction of the
curve during the exercise protocol used in this study. This is
especially relevant when using the exponential model,
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Blood lactate levels during exercise : the effects of exercise duration, bicarbonate infusion and beta-receptor antagonismBertram, Sheila Rae January 1985 (has links)
This study examines factors that determine blood lactate accumulation during exercise in order to examine the opposing theories that such accumulation occurs either as a result of muscle anaerobiosis or an "overflow" of oxygen-independent glycolysis.
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Synovial metabolism after knee joint arthroscopy : a microdialysis study /Högberg, Erland, January 2006 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2006. / Härtill 4 uppsatser.
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Genetic and environmental variation in stress physiology among steelhead trout (Oncorhynchus mykiss)Sharpe, Cameron Saunders 10 September 1992 (has links)
Graduation date: 1993
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