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Mitochondrial Hydrogen Shuttle and Lactate Threshold

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Mitochondrial Hydrogen Shuttle and Lactate Threshold

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Questions and Answers

What is one practical use of lactate threshold in training programs?

It determines maximum oxygen uptake.

It indicates body fat percentage.

It predicts VO2 max.

It helps select a training heart rate. (correct)

How does training near lactate threshold affect performance?

It increases overall muscle mass.

It shifts the lactate threshold to the right. (correct)

It improves running economy.

It shifts the lactate threshold to the left.

Which of the following is NOT a use of lactate threshold in endurance performance?

Marking training intensity.

Monitoring hydration levels. (correct)

Planning training programs.

Predicting race outcomes.

What role does lactate threshold play in relation to running economy?

It is combined with running economy to predict performance. Signup and view all the answers

Which statement regarding lactate threshold is correct?

It can shift due to long-term training adaptations. Signup and view all the answers

How does shifting the lactate threshold impact endurance training?

It allows athletes to perform at higher intensities for longer durations. Signup and view all the answers

Which of the following is a combined factor used for predicting endurance performance?

Lactate threshold and running economy. Signup and view all the answers

What role does heart rate play in training concerning lactate threshold?

Heart rate can be used to select training intensities based on lactate threshold. Signup and view all the answers

Why is lactate threshold considered an important marker of training intensity?

It indicates the point at which lactate begins to accumulate in the bloodstream. Signup and view all the answers

What is the primary effect of training just below the lactate threshold?

It enhances performance by increasing lactate tolerance. Signup and view all the answers

Study Notes

Mitochondrial Hydrogen Shuttle System and Lactate Production

Figure 4.9 illustrates the mitochondrial hydrogen shuttle system.

Practical Uses of Lactate Threshold

Lactate threshold prediction can be used to predict endurance performance (e.g., 10K).
It's combined with running economy.
Lactate threshold helps in planning training programs.
It serves as a marker of training intensity.
Training heart rate can be selected based on the lactate threshold.
Training near (but slightly below) the lactate threshold is effective in shifting the lactate threshold to a higher intensity.

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Description

This quiz explores the mitochondrial hydrogen shuttle system and its role in lactate production. It also delves into the practical applications of lactate threshold in predicting endurance performance and planning training programs. Understand how lactate threshold can impact training intensity and running economy.