NSCA CSCS Exam Questions With
Correct Marking Scheme Rated A+
Epimysium - Answer - ✔ outer most layer surrounds the entire muscle-outermost layer
Perimysium - Answer - ✔ surrounds one bundle of muscle fibers
Endomysium - Answer - ✔ Surrounds one muscle fiber-inner most layer
Tendons vs Ligaments - Answer - ✔ Tendons are muscle to bone
Ligaments are bone to bone
How is a muscle fiber activated? - Answer - ✔ 1.) Create an action potential
2.) Action potential propagates down the nerve to the neuromuscular junction
3.) Acetylcholine crosses the neuromuscular junction exciting the sarcolemma
4.) Signal goes down the t-tubules and causes a release of calcium from the
sarcoplasmic reticulum
5.) Troponin binds to tropomyosin (rope around actin) and pulls the tropomyosin out of
the way
6.) Tropomyosin moves to open the binding site
7.) Myosin binds to actin forming cross bridge
Reversal Theory - Answer - ✔ When an athlete experiences a high level of arousal,
reversal theory suggests that athletes may interpret that arousal differently. Some may
react with anxiety and a lack of confidence while others may experience a more positive
response, with a sense of excitement and performance readiness. This idea implies that
athletes have in their power the ability to reverse their interpretation of their own
arousal.
Explain the Sliding Filament Theory - Answer - ✔ The sliding filament theory of muscle
contraction is the binding of myosin to actin, forming cross-bridges that generate
filament movement . When (a) a sarcomere (b) contracts, the Z-lines move closer
together and the I band gets smaller.
Actin - Answer - ✔ Thin Filament
Myosin - Answer - ✔ Thick Filament
What is the equation for Force and the units? - Answer - ✔ Force= mass* acceleration
Units: Newton ( 1Kg*m/s^2)
What is an open chain exercise? - Answer - ✔ The terminal/distal segments move freely
Ex: bench press, seated leg extension, hamstring curls
, What is a closed chain exercise? - Answer - ✔ Distal Aspect of the extremity is fixed to
a stationary object
Ex: Chin-up, squat, deadlift
Isotonic vs Isokinetic - Answer - ✔ Isotonic: Constant tension as muscle changes length
Isokinetic: Constant Speed
What is the equation for Work? What are the units? - Answer - ✔ Work = force *
displacement
Units: Joule (J) = Newtons* Meters
What is the equation for Power? What are the units? - Answer - ✔ Power = work/time
Units: watts
Frontal Plane and movements in the Plane - Answer - ✔ Side shuffle, jumping jack,
lateral lunge, shoulder press, pull-up
Sagittal plane and movements in the plane - Answer - ✔ Walking lunges, bicep curls,
seated wrist curl
Transverse Plane and movements in the plane - Answer - ✔ Swinging a baseball bat,
tennis backhand, rotation
Types of Muscle Contractions - Answer - ✔ Concentric- shortening
Eccentric- lengthening
Isometric- held at a constant length
Mechanical Advantage equation - Answer - ✔ Mechanical advantage = muscle
arm/resistance arm
Three different types of levers - Answer - ✔ 1st class- muscle force on one side then
fulcrum point then resisted force on opposite side
Ex: Tricep
2nd Class- fulcrum point, to resistance point, to muscle force
Ex: Calf raise
3rd class- Fulcrum point. muscle attachment/force, resistance point
Ex: Bicep Curl
Energy Systems and time they are utilized - Answer - ✔ PCr: less than 10 seconds
Anaerobic (fast) glycolysis: 30 seconds-2min
Aerobic Glycolysis: 2 minutes-several hours
Fat: Very long duration
Correct Marking Scheme Rated A+
Epimysium - Answer - ✔ outer most layer surrounds the entire muscle-outermost layer
Perimysium - Answer - ✔ surrounds one bundle of muscle fibers
Endomysium - Answer - ✔ Surrounds one muscle fiber-inner most layer
Tendons vs Ligaments - Answer - ✔ Tendons are muscle to bone
Ligaments are bone to bone
How is a muscle fiber activated? - Answer - ✔ 1.) Create an action potential
2.) Action potential propagates down the nerve to the neuromuscular junction
3.) Acetylcholine crosses the neuromuscular junction exciting the sarcolemma
4.) Signal goes down the t-tubules and causes a release of calcium from the
sarcoplasmic reticulum
5.) Troponin binds to tropomyosin (rope around actin) and pulls the tropomyosin out of
the way
6.) Tropomyosin moves to open the binding site
7.) Myosin binds to actin forming cross bridge
Reversal Theory - Answer - ✔ When an athlete experiences a high level of arousal,
reversal theory suggests that athletes may interpret that arousal differently. Some may
react with anxiety and a lack of confidence while others may experience a more positive
response, with a sense of excitement and performance readiness. This idea implies that
athletes have in their power the ability to reverse their interpretation of their own
arousal.
Explain the Sliding Filament Theory - Answer - ✔ The sliding filament theory of muscle
contraction is the binding of myosin to actin, forming cross-bridges that generate
filament movement . When (a) a sarcomere (b) contracts, the Z-lines move closer
together and the I band gets smaller.
Actin - Answer - ✔ Thin Filament
Myosin - Answer - ✔ Thick Filament
What is the equation for Force and the units? - Answer - ✔ Force= mass* acceleration
Units: Newton ( 1Kg*m/s^2)
What is an open chain exercise? - Answer - ✔ The terminal/distal segments move freely
Ex: bench press, seated leg extension, hamstring curls
, What is a closed chain exercise? - Answer - ✔ Distal Aspect of the extremity is fixed to
a stationary object
Ex: Chin-up, squat, deadlift
Isotonic vs Isokinetic - Answer - ✔ Isotonic: Constant tension as muscle changes length
Isokinetic: Constant Speed
What is the equation for Work? What are the units? - Answer - ✔ Work = force *
displacement
Units: Joule (J) = Newtons* Meters
What is the equation for Power? What are the units? - Answer - ✔ Power = work/time
Units: watts
Frontal Plane and movements in the Plane - Answer - ✔ Side shuffle, jumping jack,
lateral lunge, shoulder press, pull-up
Sagittal plane and movements in the plane - Answer - ✔ Walking lunges, bicep curls,
seated wrist curl
Transverse Plane and movements in the plane - Answer - ✔ Swinging a baseball bat,
tennis backhand, rotation
Types of Muscle Contractions - Answer - ✔ Concentric- shortening
Eccentric- lengthening
Isometric- held at a constant length
Mechanical Advantage equation - Answer - ✔ Mechanical advantage = muscle
arm/resistance arm
Three different types of levers - Answer - ✔ 1st class- muscle force on one side then
fulcrum point then resisted force on opposite side
Ex: Tricep
2nd Class- fulcrum point, to resistance point, to muscle force
Ex: Calf raise
3rd class- Fulcrum point. muscle attachment/force, resistance point
Ex: Bicep Curl
Energy Systems and time they are utilized - Answer - ✔ PCr: less than 10 seconds
Anaerobic (fast) glycolysis: 30 seconds-2min
Aerobic Glycolysis: 2 minutes-several hours
Fat: Very long duration
