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KIN 310 TEST 1
Terms in this set (84)
which of the following is true when comparing O2 and CO2 concentration in the systemic circulatory system?
the concentration of O2 is higher in the arteries than the veins but he concentrations of CO2 is higher in the veins than the arteries
which of the following is true?
there is significantly more pressure in the arteries than in the veins
during inspiration the chest cavity increases in size creating higher pressure in the lungs than in the atmosphere. T or F?
there is more muscle around the ventricles than the atrium because why?
the ventricles have to pump blood further
functions of the pulmonary system include what?
supplying the O2 needed for aerobic production
which of the following statements are true?
carbon dioxide diffuses from the blood tho the alveoli
joe is very sedentary but starts on an aerobic exercise program. what will happen to joe's maximal heart rate and maximal stroke volume with training?
his maximal heart rate will stay the same but his stroke volume will increase
gas exchanges takes place where?
systolic blood pressure is what?
higher than diastolic blood pressure
what do important cardiovascular training adaptations or improvements include?
increases cardiac output
increased maximal stroke volume
increased maximal heart rate
what order does the blood flow through the cargo-respiratory system?
2. right atria
3. right ventricle
5. left atria
6. left ventricle
the difference in the cardiac output between a trained and untrained person is primarily due to bigger _____ in the trained person
components of the pulmonary system include what?
the SA node, the heart's "pacemaker" or the place where each normal heart beat originates, is located where?
which of the following statements are true about cardiac output?
1. cardiac output equals heart rate times stole volume
2. cardiac output increases as aerobic exercise intensity increases
3. maximal cardiac output is higher in trained endurance athletes in untrained individuals
what is diastolic blood pressure?
it is the pressure between beats when the heart is relaxed
what are red blood cells?
contain hemoglobin and are the oxygen carrying component of blood
during exercise, as blood flows through the muscle capillaries.....
1.carbon dioxide diffuses from the blood into the muscle cells
2. oxygen diffuses form the muscle cells into the blood
3. heat diffuses form the blood into the muscle cells
jane has a much higher maximal oxygen uptake than joe. based on this, which of the following statements is probably true?
jane will be a better distance runner
the estimated maximal heart rate for a 50 year old man is _____ beats per minute
which of the following are examples of applying the progressive overload principle to intensity of aerobic exercise?
swimming for 30 minutes at a heart rate of 130 beats per minute this week and for 40 minutes at a heart rate of 135 beats per minute the next week
which of the following falls within the general guidelines for aerobic exercise prescription for fitness?
1. 80% of HR max
2. 40 minutes per workout
which of the following falls within the general guidelines for aerobic
4 days a week
a cyclist runs twice a week. this is an example of _____ training.
jane who is poor aerobic condition, goes on a distance running program for 3 months. which of the following should result from her trainin?
her blood volume will increase
mary goes on a distance running program for 3 months prior to starting the program and at the end of the 3 month program, we test her and find out that her oxygen uptake is the same when jogging at a pace of 6 miles per hour. which of the following statements are true?
her stoke volume at 6 miles per hour will be higher after 3 months of training
which interval workout is best for training the aerobic system?
repetitive bouts of running for 4 minutes with 4 minutes of rest
joes estimated HR max is 180 beats per minute. during aerobic exercise joe feels like he's working "somewhat hard", but the heart rate monitor he is wearing indicates that his hear rate is 180 beats per minute. which of the following is probably true?
his actual HR max higher than you estimated
which of the following programs will produce the greatest improvement in aerobic fitness? (the intensity of each is the same)
5 days perk for 35 minutes per workout
which of the following is a benefit of cardiorespiratory fitness?
reduction in risk o heart disease
breathing or ventilation increases as aerobic exercise intensity increases in order to:
bring in more oxygen
remove more carbon dioxide
which of the following adaptations occur with aerobic exercise training?
VO2 max increases
which of the following modes of exercise is considered the best for achieving cardiorespiratory fitness?
muscular endurace is defined as what?
the ability of a muscle to generate force over and over again without training
which of the following modes of exercise is considered to be the best for achieving cardio respiratory fitness?
muscular endurance is defined as what?
the ability of a muscle to generate force over and over again without training
which of the following statements are true about warm-up for aerobic exercise?
a proper warm up can help prevent injuries during the exercise bout; During a proper warm-up, blood flow increases to the muscles to be used during the exercise bout
which of the following is NOT considered to be one o the major components of health -related physical fitness
which of the following perceived exertion falls within the intensity guidelines for aerobic exercise physical fitness?
somewhat hard and hard
why does oxygen uptake increase as the intensity of aerobic exercise increases?
because the body needs to produce more energy at a faster rate
after 3 months on a aerobic exercise program. mary's resting heart rate has decreased. why?
because oxygen uptake has increased
which of the following cycling programs expands the most calories?
4 days per week for 20 minutes per workout
muscular strength is defined as what?
the maximal ability of a muscle to generate force
Systolic Blood Pressure
Blood pressure when the heart is contracting
The anaerobic or lactate threshold refers to the point during aerobic exercise at which:
the rate of lactic acid accumulation begins to increase
Arteries carry blood away from the heart.
An example of the principle of overload applied to different types of training is:
Cycling 4 day instead of 3 per week
Of the potential variables that produces overload, which seems to have the greatest impact in terms of improvement?
Applying the principles of specificity to your workout mean that you:
train the system you will use when you preform
If you stop training you will see a loss of fitness. How quickly you detrain depends on a number of factors including your:
genetics, fitness level, and activity level
If you completely stop aerobic training, you will return to pre-training levels of approx.:
10 weeks to 8 months
Applying the principle of overload to resistance training means that you need to:
increase the amount of weight you lift to get stronger
The amount of rest that is recommended between intense training workouts is generally:
Failure to get adequate rest between workouts may lead to:
In order to progress gradually a good rule of thumb is to increase your workouts by no more then what percent on a weekly basis?
Which energy system predominates high intensity activities lasting less then 15 seconds?
An example of activity using predominately aerobic metabolism is:
Which statement is most true about what happens when lactic acid accumulates in the muscles during high intensity exercise?
high levels of lactic acid inhibit muscular contraction
Scenario: As we pull out of of the neighborhood, we have about 15 minutes of easy, steady riding. To get to loop 350 we have to climb a steep hill which will take about 1.5 minutes. Which energy system will predominate during the 90 second hill climb?
As we get to the next hill, Phil powers up the first half of the hill but then runs out of steam towards the top. As you pass him, which statement do you taunt him with as he struggles to pedal to the top?
Maybe if you did more anaerobic training you could deal with that lactic acid right now
As we finish the ride and the house is about 100 yards away, the more competitive riders start to gear up and the race begins to see who can get to the house first. Theoretically, which rider should win?
The one with the greatest stores of ATP-PC
What do the ATP-PC system and anaerobic glycolysis have in common?
they do NOT use oxygen to produce energy
Anaerobic work takes place when
there is not enough oxygen to completely break down carbohydrate
The saying "fat burns in the flame of carbohydrate" refers to the fact that:
without a base of carbohydrate, your body is not able to efficiently burn fat
Which factors determines the predominate energy system used during exercise?
Intensity, duration, training state, level of fitness, and diet
Some factors that cause fatigue at the end of a long workout include:
low blood glucose and reduced muscle glycogen, low levels of lactic acid and dehydration, electrolyte imbalance
Recommending that someone exercise at a low intensity in order for them to burn more fat is not good advice because
total caloric expenditure is more important then burning fat or carbohydrate
As you extend exercise duration, what generally happens to the percentage of calories coming from carbohydrate if you maintain exercise intensity?
One way to explain the cross over concept of energy production is that
as you increase exercise intensity you decrease fat utilization
Most of the energy your body uses at rest comes from
Anaerobic glycolysis without oxygen uses only carbohydrate for fuel and produces lactic acid (fast twitch)
Anaerobic glycolysis is the same process as aerobic glycolysis except that anaerobic glycolysis is the complete breakdown of a mole/unit of carbohydrate
Beta-oxidation is the process that prepares proteins for entry into the Krebs-Cycle
Muscular fatigue or exhaustion during extended duration exercise (more then 2 hours) is usually related to glycogen depletion or dehydration
An example of the principle of specificity applied to energy systems is that to develop more explosive power, you need to train the ATP-PC system
The arteries that feed or go to the heart originate or come off the
The arteries that surround and feed the heart muscle are called the
For every liter of oxygen used to produce energy approx. how many calories are expended?
A purpose of a cool down after exercise is
to reduce the risk of muscle injuries and dizziness
The contraction phase of the heart is called
Which of the following falls within the recommended number of calories to expend per workout for aerobic fitness?
The muscle part of the heart is called
As the intensity of aerobic exercise increases, the blood flow to the gut increases.
A training effect of aerobic training is that cardiac output increase at rest.
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