CSCS- SCIENTIFIC FOUNDATIONS
EXAM QUESTIONS AND ANSWERS
During concentric muscle action everything shortens except - Correct Answers -A Band
Factors that contribute to venous return - Correct Answers -muscle pump, respiratory
pump, venoconstriction
what signals the beginning of the contraction process - Correct Answers -calcium
what will increase the dissociation between hemoglobin and oxygen - Correct Answers -
increased temperature
internal rotation of the hip takes place in what plane - Correct Answers -transverse
plane
the knee joint is a ____________ joint - Correct Answers -synovial (many axis)
example of a third class lever - Correct Answers -bicep curl
Does bi pennate or pennate muscles produce higher forces - Correct Answers -bi
pennate
what is the primary substrate for 50m sprint? - Correct Answers -creatine phosphate
what is the general recommendation for dietary fat? - Correct Answers -30% of total
calories
what state is an athlete in before steady state exercise? - Correct Answers -oxygen
deficit
what hormone is used to increase red blood cell count? - Correct Answers -
erythropoieten
in order to lose 10lbs an individual will need a deficit of how many kilocalories? - Correct
Answers -35,000
4 training adaptations for aerobic exercise - Correct Answers -1. increased blood
volume
2. increased capillary density
3. increased oxygen uptake @ higher exercise intensity
, 4. increased stroke volume
4 signs of overtraining - Correct Answers -1. decreased muscle glycogen
2. decreased performance
3. muscle soreness
4. decreased submax HR
during max exercise (>90%) what types of fibers are recruited? - Correct Answers -type
I, IIa, IIb
during exercise what system (sympathetic or parasympathetic) increases in activity? -
Correct Answers -sympathetic
what regulates muscle actions? - Correct Answers -calcium
what acts on the neuromuscular junction to excite the muscle fibers of a motor unit? -
Correct Answers -acetylcholine
What detects over stretching and responds by increasing muscle activity? - Correct
Answers -muscle spindles
what initiates the hearts electrical impulse? - Correct Answers -SA node
what does QRS complex represent? - Correct Answers -1. repolarization of the atria
2. depolarization of the ventricles
During free weight exercise muscle force varies with ___ distance from the weight to the
____ joint and _____ acceleration - Correct Answers -1.perpendicular
2.Body
3.movement
Vertical Jump occurs in what plane? - Correct Answers -sagittal plane
as compared to males, the potential for force production of females per muscle cross
sectional area is - Correct Answers -equal
during concentric muscle action in the hamstring, the _____ zone decreases and
______ discs are pulled towards eachother. - Correct Answers -H Zone
Z Discs
what depletion leads to fatigue in prolonged aerobic bouts? - Correct Answers -muscle
glycogen
what levers occur in concentric isokinetic elbow flexion and extension? - Correct
Answers -1st and 3rd class levers
EXAM QUESTIONS AND ANSWERS
During concentric muscle action everything shortens except - Correct Answers -A Band
Factors that contribute to venous return - Correct Answers -muscle pump, respiratory
pump, venoconstriction
what signals the beginning of the contraction process - Correct Answers -calcium
what will increase the dissociation between hemoglobin and oxygen - Correct Answers -
increased temperature
internal rotation of the hip takes place in what plane - Correct Answers -transverse
plane
the knee joint is a ____________ joint - Correct Answers -synovial (many axis)
example of a third class lever - Correct Answers -bicep curl
Does bi pennate or pennate muscles produce higher forces - Correct Answers -bi
pennate
what is the primary substrate for 50m sprint? - Correct Answers -creatine phosphate
what is the general recommendation for dietary fat? - Correct Answers -30% of total
calories
what state is an athlete in before steady state exercise? - Correct Answers -oxygen
deficit
what hormone is used to increase red blood cell count? - Correct Answers -
erythropoieten
in order to lose 10lbs an individual will need a deficit of how many kilocalories? - Correct
Answers -35,000
4 training adaptations for aerobic exercise - Correct Answers -1. increased blood
volume
2. increased capillary density
3. increased oxygen uptake @ higher exercise intensity
, 4. increased stroke volume
4 signs of overtraining - Correct Answers -1. decreased muscle glycogen
2. decreased performance
3. muscle soreness
4. decreased submax HR
during max exercise (>90%) what types of fibers are recruited? - Correct Answers -type
I, IIa, IIb
during exercise what system (sympathetic or parasympathetic) increases in activity? -
Correct Answers -sympathetic
what regulates muscle actions? - Correct Answers -calcium
what acts on the neuromuscular junction to excite the muscle fibers of a motor unit? -
Correct Answers -acetylcholine
What detects over stretching and responds by increasing muscle activity? - Correct
Answers -muscle spindles
what initiates the hearts electrical impulse? - Correct Answers -SA node
what does QRS complex represent? - Correct Answers -1. repolarization of the atria
2. depolarization of the ventricles
During free weight exercise muscle force varies with ___ distance from the weight to the
____ joint and _____ acceleration - Correct Answers -1.perpendicular
2.Body
3.movement
Vertical Jump occurs in what plane? - Correct Answers -sagittal plane
as compared to males, the potential for force production of females per muscle cross
sectional area is - Correct Answers -equal
during concentric muscle action in the hamstring, the _____ zone decreases and
______ discs are pulled towards eachother. - Correct Answers -H Zone
Z Discs
what depletion leads to fatigue in prolonged aerobic bouts? - Correct Answers -muscle
glycogen
what levers occur in concentric isokinetic elbow flexion and extension? - Correct
Answers -1st and 3rd class levers
