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OBLA
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Cards (25)
How is blood lactate level measured in this tutorial?
Millimolecules
of blood lactate per
1000
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What happens to blood lactate levels as exercise intensity increases?
They
gradually increase
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What is the definition of OBLA?
Onset of blood lactate accumulation
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What does rapid onset of blood lactate accumulation indicate?
Blood lactate
builds
up
quickly
during
exercise
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At what blood lactate level does rapid accumulation begin?
4
millimolecules
per thousand
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What happens to an untrained performer when they reach 4 millimolecules per thousand?
They begin to
fatigue
or slow down
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Why do hydrogen ions associated with lactate affect exercise?
They denature
aerobic enzymes
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How does a trained athlete's blood lactate response differ from an untrained athlete's?
They can exercise at higher intensities before reaching
4 ml
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What is another term for OBLA?
Lactate threshold
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How is OBLA related to VO2 max?
It is a percentage of VO2 max
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What effect does increasing VO2 max have on OBLA?
It
delays
the
onset
of OBLA
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What type of training can help increase tolerance to lactate?
Aerobic training
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What is the significance of the 4 millimolecules per thousand threshold?
It indicates the limit of
lactate tolerance
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How does training affect an athlete's ability to tolerate lactate?
Training can increase lactate tolerance
marginally
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What is the relationship between exercise intensity and blood lactate accumulation?
Higher
intensity leads to faster lactate accumulation
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What does the steepening of the curve indicate in the context of blood lactate levels?
Rapid accumulation of
blood
lactate
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How does the concept of OBLA relate to fatigue during exercise?
OBLA indicates when fatigue begins due to
lactate
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What is the main takeaway regarding trained versus untrained athletes and OBLA?
Trained athletes can
tolerate
higher intensities
before OBLA
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What does the term "tolerance to lactate" refer to?
Ability to withstand
higher
lactate
levels
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What is the primary focus of this tutorial?
Understanding
OBLA
and its implications
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What does the tutorial suggest about the relationship between training and OBLA?
Training can increase the
threshold
for OBLA
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What is the significance of the term "rapid" in OBLA?
It emphasizes quick accumulation of lactate
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What is the role of aerobic enzymes in relation to lactate?
They are
denatured
by
hydrogen ions
from lactate
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How does the tutorial describe the relationship between exercise and blood lactate levels?
Exercise
intensity
affects blood lactate accumulation
View source
What is the impact of reaching the OBLA threshold?
It leads to fatigue and reduced
exercise
capacity
View source
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