Worksheets11 HMS: Immediate physiological responses to training
Total questions: 14
Worksheet time: 28mins
Fill in the blank: During maximal exercise, there is a _______ increase in heart rate corresponding to the increase in exercise demands.
linear
exponential
random
cyclical
Which type of person will have a higher heart rate at any given submaximal workload?
Trained person
Untrained person
Fill in the blank: The cardiorespiratory fitness level of a person will determine how quickly the heart rate returns to _______ levels after exercise.
resting
maximum
elevated
dangerous
What does ventilation rate refer to?
The amount of blood pumped from the heart per beat
The movement of air into (inspiration) and out of (expiration) the lungs
The amount of oxygen in the blood
The rate of heart contractions
According to Figure 5.24, which exercise intensity results in the highest pulmonary ventilation (L/min)?
Light
Moderate
Heavy
Rest
Stroke volume refers to the amount of blood pumped from the ______ per beat.
heart (left ventricle)
lungs
right atrium
aorta
Which group has a higher maximal stroke volume during exercise?
Untrained participants
Trained participants
What does cardiac output (Q) refer to?
The amount of blood pumped from the right ventricle each minute
The amount of blood pumped from the left ventricle each minute
The amount of oxygen used by the muscles each minute
The amount of blood in the body
Cardiac output (Q) can be calculated as:
Q = SV (mL) x HR (bpm)
Q = HR (bpm) / SV (mL)
Q = SV (mL) + HR (bpm)
Q = SV (L) x HR (bpm)
According to the passage, which of the following is true about trained individuals compared to untrained individuals at submaximal workloads?
Trained individuals have a higher heart rate and lower stroke volume
Trained individuals have a higher stroke volume and lower heart rate
Trained individuals have a lower stroke volume and higher heart rate
Trained individuals have the same heart rate and stroke volume as untrained individuals
According to the passage, what happens to lactate levels during high-intensity exercise?
Lactate levels increase as the body produces lactic acid to create energy for the muscles.
Lactate levels decrease as the body uses up all available lactic acid.
Lactate levels remain unchanged throughout the exercise.
Lactate is not produced at all during high-intensity exercise.
At approximately what percentage of VO2 max do trained athletes begin to show a sharp increase in blood lactate levels compared to untrained individuals?
75–85% VO2 max
40–50% VO2 max
55–65% VO2 max
90–100% VO2 max
According to the passage, passive recovery results in 50 percent of the lactate being removed within 15–20 minutes after maximal exercise.
True
False
What is the main reason for the exponential rise in blood lactate accumulation during high-intensity exercise?
It is thought to be due to a reliance on anaerobic glycolysis, less oxygen being available in the tissues, the recruitment of fast twitch-fibres, and the reduced removal of lactate.
It is primarily caused by increased fat oxidation and decreased carbohydrate metabolism.
It results from enhanced oxygen delivery to the muscles and increased mitochondrial density.
It is due to a decrease in muscle temperature and increased blood flow to the skin.
