Endurance Training Adaptations

What is stroke volume and how does increased stroke volume benefit physical performance during exercise?

• Increased stroke volume decreases heart rate during exercise.

• Stroke volume is the volume of blood pumped by the heart per beat, and increased stroke volume benefits physical performance by improving oxygen delivery and endurance during exercise.

• Stroke volume is the total amount of blood in the heart at rest.

• Stroke volume is the amount of blood filtered by the kidneys per minute.

What is the relationship between decreased resting heart rate and increased stroke volume?

• Increased resting heart rate is linked to higher stroke volume because of faster heartbeats.

• Decreased resting heart rate has no effect on stroke volume and heart efficiency.

• Decreased resting heart rate leads to lower stroke volume due to reduced blood flow.

• Decreased resting heart rate is associated with increased stroke volume due to improved heart efficiency.

What is tidal volume and how does the increase of lung capacity contribute to improved athletic performance?

• Tidal volume is the total lung capacity; increased lung capacity decreases oxygen intake.

• Tidal volume is the amount of air per breath; increased lung capacity improves athletic performance by allowing more oxygen intake.

• Tidal volume refers to the total air in the lungs; larger lung capacity hinders athletic performance.

• Tidal volume is the air left in the lungs after exhalation; increased lung capacity has no effect on performance.

Explain why the development of slow-twitch muscle fibers is advantageous for endurance activities.

• Slow-twitch fibers develop quickly and require less training time.

• They are less efficient in utilizing oxygen compared to fast-twitch fibers.

• The development of slow-twitch muscle fibers enhances endurance by improving oxygen efficiency, stamina, and fatigue resistance.

• Slow-twitch fibers are primarily used for explosive strength activities.

How does increased blood pressure during exercise affect oxygen delivery to muscles?

• Higher blood pressure during exercise leads to muscle fatigue.

• Increased blood pressure during exercise improves oxygen delivery to muscles.

• Blood pressure has no effect on oxygen delivery during exercise.

• Increased blood pressure reduces oxygen delivery to muscles.

What role do capillaries play in muscle performance during endurance activities?

• Capillaries primarily store energy for muscle contractions.

• Capillaries are responsible for muscle contraction and relaxation.

• Capillaries enhance oxygen delivery and waste removal, improving muscle performance during endurance activities.

• Capillaries reduce blood flow to muscles during exercise.

How do increased fuel stores of glucose in the muscles enhance endurance?

• Increased glucose stores enhance endurance by providing a sustained energy source for muscle activity.

• Higher glucose levels in muscles cause dehydration and reduce stamina.

• Glucose stores in muscles are primarily used for fat loss rather than energy during endurance activities.

• Increased glucose stores lead to muscle fatigue during prolonged exercise.

What is maximal minute ventilation and why is it important for athletes?

• Maximal minute ventilation is the total oxygen consumed during exercise.

• It measures the heart rate of an athlete during competition.

• Maximal minute ventilation is the maximum air volume an athlete can breathe in one minute, important for assessing respiratory efficiency and performance.

• Maximal minute ventilation is the amount of water an athlete can drink in an hour.

How does endurance training affect the overall efficiency of the cardiovascular system?

• Endurance training has no impact on cardiovascular health.

• Endurance training decreases heart rate and reduces blood flow.

• Endurance training improves cardiovascular efficiency by increasing stroke volume and enhancing oxygen delivery.

• Endurance training weakens the heart muscle and lowers oxygen uptake.

In what ways can endurance training influence recovery times after exercise?

• Endurance training increases muscle soreness after exercise.

• Endurance training has no effect on recovery times.

• Endurance training slows down the healing process of injuries.

• Endurance training can reduce recovery times by improving cardiovascular efficiency, enhancing nutrient delivery, and facilitating faster waste removal.