mechanical process of moving air in and out of the lungs.
What is Ventilation
100
The most important muscle of inspiration is/are the
diaphragm
100
True or False: Genetics is are a factor in Vo2max
True
100
The enhanced capacity of the trained muscle to use fatty acids as a fuel results in
a. decreased lactate formation.
b. decreased utilization of muscle glycogen.
c. sparing of blood glucose.
d. all of the above.
What is D
200
The amount of air inspired and expired at rest is called
Tidal Volumn
200
Exercise-induced asthma would reduce airflow by
Increasing airway resistance
200
The average VO2 max value for the young male sedentary population is
45 ml/kg/min
200
T or F: Following endurance training, afterload decreases during maximal exercise because there is a decrease in sympathetic vasoconstrictor activity in the arterioles of the exercising muscles.
What is TRUE
300
Most of the O2 that is transported in the blood is in the form of
What is Oxyhemoglobin
300
True or False: In general, because of blood hemoglobin concentration differences, males transport less oxygen per unit of blood volume than females
False
300
In the first 10 weeks of a resistance training program, the gains in strength are due primarily to
Neural changes
300
T or F: The majority of evidence demonstrates that resistance training–induced muscle hypertrophy is the result of muscle fiber hyperplasia.
What is FALSE
400
The respiratory control center is located in the
What is medulla oblongata
400
Activation of rectus abdominis muscles would result in
Active expiration
400
In terms of the factors that limit VO2 max, improvements elicited by endurance training generally first affect ____________, and then ___________ after several weeks/months.
cardiac output; avO2 difference
400
Following an endurance training program, the oxygen deficit is smaller when the subject does the same work task. This is due to
a. an increased cardiac output.
b. increases in the number of mitochondria and capillaries.
c. an increased heart rate.
d. a greater anaerobic capacity.
B
500
The alinear rise in ventilation observed during incremental exercise (i.e., ventilatory threshold) is thought to be principally due to
Decreased pH
500
In response to exercise training, the normal lung
Does not undergo measurable changes
500
Endurance training results in increased mitochondrial and capillary density in muscle but has no effect on muscle glycolytic capacity. This is an example of what training principle?
specificity
500
The increase in VO2 max following training is caused by an increase in
a. maximal stroke volume only.
b. maximal a-vO2 difference only.
c. both maximal stroke volume and maximal a-vO2 difference.
d. maximal heart rate only.