Threshold Flashcards
(26 cards)
What is lactate threshold?
The point during exercise at which lactate starts to accumulate in the blood.
True or False: Lactate threshold is an indicator of endurance performance.
True
Fill in the blank: The lactate threshold typically occurs at about ___% of an athlete’s VO2 max.
50 to 80
What physiological changes occur at lactate threshold?
Increased production of lactate exceeds the clearance rate, leading to accumulation.
Multiple Choice: Which of the following factors can influence lactate threshold?
Training status, muscle fiber type, and genetics.
What is the significance of lactate threshold in training?
It helps determine appropriate training intensities to improve endurance.
True or False: Lactate is only produced during high-intensity exercise.
False
What is the relationship between lactate threshold and performance?
A higher lactate threshold is associated with better endurance performance.
Multiple Choice: Which test is commonly used to determine lactate threshold?
Lactate threshold testing during graded exercise.
What does an increase in lactate threshold indicate?
Improved ability to sustain higher intensity exercise without accumulating lactate.
Fill in the blank: Training at or near lactate threshold can improve ___ capacity.
aerobic
True or False: Lactate threshold remains constant regardless of training.
False
What role does lactate play in energy production?
Lactate can be used as a fuel source by muscles and the heart.
Multiple Choice: Which of the following is NOT a method to improve lactate threshold?
Long slow distance training only.
What is the primary cause of lactate accumulation?
An imbalance between lactate production and clearance.
True or False: Lactate is a waste product that only causes fatigue.
False
Fill in the blank: The lactate threshold can be shifted to the right with ___ training.
endurance
What is the primary energy system used during exercise at lactate threshold?
Anaerobic glycolysis.
Multiple Choice: Which type of training is most effective for increasing lactate threshold?
Interval training.
What is the lactate threshold often referred to in endurance sports?
Anaerobic threshold.
True or False: Lactate threshold can be affected by hydration levels.
True
Fill in the blank: The accumulation of lactate can lead to ___ during prolonged exercise.
muscle fatigue
What is one common misconception about lactate?
That it is solely responsible for muscle soreness.
Multiple Choice: Which measurement is often used to assess lactate levels?
Blood lactate concentration.
