WITS EXAM QUESTIONS AND 100%
CORRECT ANSWERS 2026
Personal Trainer Certification
Exam #1
\Q\.1.)_________________ is the most important source of immediate energy which lasts
about 3 - 5 seconds
(Ch. 4, P. 66) - ANSWERS✔-...a.Phosphocreatine
\Q\.2.)During muscle contraction, the _______________ releases calcium into the sarcoplasm,
which allows for actin-myosin interaction.
(Ch. 4, P. 68) - ANSWERS✔-...b.sarcoplasmic reticulum
\Q\.3.)Which type of muscle fiber not only produces great force when stimulated but also
resists fatigue?
(Ch. 4, P. 69) - ANSWERS✔-...b.Type IIa
,\Q\.4.)The volume of blood pumped by the heart per beat is known as ______________.
(Ch. 4, P. 78) - ANSWERS✔-...d.stroke volume
\Q\.5.)What are the primary reasons women have lower VO2max values than men?
(Ch. 4, P. 76) - ANSWERS✔-...c.hemoglobin levels and body fat percentage
\Q\.6.)As the respiratory exchange ratio (R) increases, ______________ become the primary
fuel source for activity.
(Ch. 4, P. 73) - ANSWERS✔-...a.carbohydrates
\Q\.7.)Studies have revealed that ____________ is the most significant factor in maintaining
VO2max with a reduced training load.
(Ch. 4, P. 83) - ANSWERS✔-...c.intensity
\Q\.8.)_________ is the primary energy source cells use for biological work.
(Ch. 4, P. 66) - ANSWERS✔-...b.ATP
\Q\.9.)Which form of heat loss occurs when heat is transferred from the surface of one object
to the surface of another with no physical contact between the objects?
,(Ch. 4, P. 85) - ANSWERS✔-...d.radiation
\Q\.10.)____________ is the volume of blood pumped by the heart per minute.
(Ch. 4, P. 78) - ANSWERS✔-...d.Cardiac output
\Q\.11.)During a ____________, participants exercise at progressively increasing work rates
until they reach maximum work tolerance.
(Ch. 4, P. 75) - ANSWERS✔-...a.graded exercise test (GXT)
\Q\.12.)The period of elevated oxygen uptake during recovery from exercise is known as
__________.
(Ch. 4, P. 74) - ANSWERS✔-...c.oxygen debt
\Q\.13.)As the respiratory exchange ratio (R) decreases, the primary fuel utilized for exercise is
________________.
(Ch. 4, P. 73) - ANSWERS✔-...b.fat
\Q\.14.)Which component of a cell is a major player for the production of ATP during aerobic
metabolism?
(Ch. 4, P. 66) - ANSWERS✔-...a.mitochondria
\Q\.15.)The fundamental unit of muscle contraction is the _____________.
, (Ch. 4, P. 67) - ANSWERS✔-...d.sarcomere
\Q\.16.)During periods of exercise, _______________ is the body's primary form of heat loss.
(Ch. 4, P. 86) - ANSWERS✔-...c.evaporation
\Q\.17.)An increase in the frequency of muscle stimulation into a smooth, sustained, high-
tension contraction is called ____________.
(Ch. 4, P. 70) - ANSWERS✔-...b.tetanus
\Q\.18.)Which type of muscle fibers contract quickly and have an innate capacity to produce
great force, but fatigue quickly?
(Ch. 4, P. 69) - ANSWERS✔-...c.Type IIx
\Q\.19.)In the general population, _____________ is the major variable influencing maximal
cardiac output.
(Ch. 4, P. 79) - ANSWERS✔-...a.stroke volume
\Q\.20.)For the average male and female, about _________ of muscle fibers are type I.
CORRECT ANSWERS 2026
Personal Trainer Certification
Exam #1
\Q\.1.)_________________ is the most important source of immediate energy which lasts
about 3 - 5 seconds
(Ch. 4, P. 66) - ANSWERS✔-...a.Phosphocreatine
\Q\.2.)During muscle contraction, the _______________ releases calcium into the sarcoplasm,
which allows for actin-myosin interaction.
(Ch. 4, P. 68) - ANSWERS✔-...b.sarcoplasmic reticulum
\Q\.3.)Which type of muscle fiber not only produces great force when stimulated but also
resists fatigue?
(Ch. 4, P. 69) - ANSWERS✔-...b.Type IIa
,\Q\.4.)The volume of blood pumped by the heart per beat is known as ______________.
(Ch. 4, P. 78) - ANSWERS✔-...d.stroke volume
\Q\.5.)What are the primary reasons women have lower VO2max values than men?
(Ch. 4, P. 76) - ANSWERS✔-...c.hemoglobin levels and body fat percentage
\Q\.6.)As the respiratory exchange ratio (R) increases, ______________ become the primary
fuel source for activity.
(Ch. 4, P. 73) - ANSWERS✔-...a.carbohydrates
\Q\.7.)Studies have revealed that ____________ is the most significant factor in maintaining
VO2max with a reduced training load.
(Ch. 4, P. 83) - ANSWERS✔-...c.intensity
\Q\.8.)_________ is the primary energy source cells use for biological work.
(Ch. 4, P. 66) - ANSWERS✔-...b.ATP
\Q\.9.)Which form of heat loss occurs when heat is transferred from the surface of one object
to the surface of another with no physical contact between the objects?
,(Ch. 4, P. 85) - ANSWERS✔-...d.radiation
\Q\.10.)____________ is the volume of blood pumped by the heart per minute.
(Ch. 4, P. 78) - ANSWERS✔-...d.Cardiac output
\Q\.11.)During a ____________, participants exercise at progressively increasing work rates
until they reach maximum work tolerance.
(Ch. 4, P. 75) - ANSWERS✔-...a.graded exercise test (GXT)
\Q\.12.)The period of elevated oxygen uptake during recovery from exercise is known as
__________.
(Ch. 4, P. 74) - ANSWERS✔-...c.oxygen debt
\Q\.13.)As the respiratory exchange ratio (R) decreases, the primary fuel utilized for exercise is
________________.
(Ch. 4, P. 73) - ANSWERS✔-...b.fat
\Q\.14.)Which component of a cell is a major player for the production of ATP during aerobic
metabolism?
(Ch. 4, P. 66) - ANSWERS✔-...a.mitochondria
\Q\.15.)The fundamental unit of muscle contraction is the _____________.
, (Ch. 4, P. 67) - ANSWERS✔-...d.sarcomere
\Q\.16.)During periods of exercise, _______________ is the body's primary form of heat loss.
(Ch. 4, P. 86) - ANSWERS✔-...c.evaporation
\Q\.17.)An increase in the frequency of muscle stimulation into a smooth, sustained, high-
tension contraction is called ____________.
(Ch. 4, P. 70) - ANSWERS✔-...b.tetanus
\Q\.18.)Which type of muscle fibers contract quickly and have an innate capacity to produce
great force, but fatigue quickly?
(Ch. 4, P. 69) - ANSWERS✔-...c.Type IIx
\Q\.19.)In the general population, _____________ is the major variable influencing maximal
cardiac output.
(Ch. 4, P. 79) - ANSWERS✔-...a.stroke volume
\Q\.20.)For the average male and female, about _________ of muscle fibers are type I.
