APK6176 - Strength & Conditioning Flashcards
What is the process of obtaining Acetyl-CoA molecules from fatty acids called?
a.) beta oxidation
b.) Krebs cycle
c.) Glucose-Alanine cycle
a.) beta oxidation
An Olympic 5K athlete is completing a race at an intensity equivalent to 100% of their VO2Max. Which of the following substrates is fueling this athlete during the face?
a.) carbs
b.) fat
c.) carbs and fat
a.) carbs
Exercise training will NOT lead to adaptations in which bioenergetic pathway?
a.) aerobic metabolism
b.) glycolysis
c.) ATP-PCr system
c.) ATP-PCr system
Pyruvate formed from glycolysis reacts with H+ to form which of the following molecules?
a.) glycogen
b.) Acetyl-CoA
c.) lactate
c.) lactate
Exercise training will NOT lead to adaptations in which bioenergetic pathway?
a.) glycolysis
b.) oxidative phosphorylation
c.) phosphagen system
c.) phosphagen system
During low intensity exercise, blood glucose is used to carry out glycolysis in a muscle cell more than in stored muscle glycogen. How many net ATP are re-synthesized in the sarcoplasm as a result of glycolysis when one molecule of glucose from blood glucose is used as the substrate?
a.) 2
b.) 3
c.) 4
a.) 2
What is the dominant energy system in a typical resistance training energy system?
a.) ATP-PCr
b.) aerobic metabolism
c.) glycolysis
c.) glycolysis
The onset of blood lactate accumulation is said to occur when blood lactate concentrations reach…
a.) 2mM
b.) 4mM
c.) 8mM
b.) 4mM
Glycolysis is a 10 step process that results in either 2 or 3 net ATP. Which source of glucose results in 3 net ATP produced?
a.) blood
b.) muscle cells
c.) both can produce net 3 ATP, depending on the amount of time it takes
b.) muscle cells
Which of the following types of training sessions will elicit the greatest EPOC (post-exercise oxygen consumption)?
a.) steady state low intensity aerobic training
b.) low intensity mind-body exercise
c.) high-intensity interval training
c.) high-intensity interval training
Exercise-induced hypoxemia that may occur in elite endurance athletes during heavy exercise is likely due to…
a.) a right-to-left shunt
b.) overt lung disease
c.) reduced alveolar ventilation due to exercise-induced asthma
d.) a diffusion limitation secondary to a rapid red blood cell transit time
d.) a diffusion limitation secondary to a rapid red blood cell transit time
Q* (a-v)O2 difference represents…
a.) Frank-Starling equation
b.) Gellish equation
c.) Fick equation
c.) Fick equation
Which of the following is a primary muscle involved in the upper extremity horizontal pushing exercises?
a.) latissimus dorsi
b.) anterior deltoids
c.) sternocleidomastoid
b.) anterior deltoids
Chronic high blood pressure has which of the following impacts on cardiac afterload?
a.) increases it
b.) decreases it
c.) has no effect on it
a.) increases it
A strength and conditioning coach can expect the VO2Max value of an elite female endurance athlete to be…
a.) 60-70mL/kg/min
b.) 40-50mL/kg/min
c.) 80-90mL/kg/min
d.) 20-30mL/kg/min
a.) 60-70mL/kg/min
What happens to resting cardiac output following chronic aerobic exercise training?
a.) it increases
b.) it decreases
c.) it remains basically the same as it was before training
c.) it remains basically the same as it was before training
Co-activation of the cardiovascular and motor control centers of the brain at the onset of exercise characterizes…
a.) central command
b.) mechanoreception
c.) proprioception
a.) central command
Increasing the end-diastolic volume of the left ventricle places a stretch on the cardiac muscle cells, and places the sarcomeres within these cells in a position with more overlap between their actin and myosin, thus allowing for a greater force with the subsequent left ventricle contraction. This phenomenon is known as…
a.) the Fick principle
b.) the Gellish mechanism
c.) the Frank-Starling mechanism
c.) the Frank-Starling mechanism
True or False: an increase in alveolar ventilation serves to lower arterial PCO2 and increase blood pH.
True
An Olympic track athlete competes in the 800m race at their highest intensity. What is the dominant substrate used in glycolysis during this race?
a.) glucose
b.) protein
c.) glycogen
c.) glycogen
Which hormone is associated with presenting an athlete with a lack of autonomy in their training and practice, due to increase in stress that normally accompanies this scenario?
a.) dopamine
b.) cortisol
c.) serotonin
b.) cortisol
When skeletal muscle is activated, the muscle action potential travels down which of the following?
a.) sarcomeres
b.) sarcoplasmic reticulum
c.) t-tubules
b.) sarcoplasmic reticulum
True or False: the muscle fibers contained within a single motor unit tend to be clustered together in a particular region of the muscle belly.
False
The site where the motor neuron and muscle meet is called the…
a.) neuromuscular junction
b.) end-plate potential
c.) sarcolemma
a.) neuromuscular junction