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WorksheetsUnit 3 Part 1
Total questions: 20
Worksheet time: 10mins
Which of the following training techniques will most likely cause the greatest caloric expenditure from excess post-exercise oxygen consumption (EPOC) following a one-hour exercise bout?
Weight training using 60-75% 1RM
Yoga
Steady-state aerobic training in the fat-burning zone
Interval aerobic training in the carbohydrate zone
Cellular adaptations to aerobic exercise include increasing the oxidative capacity of fast twitch muscle fibers via _________________.
increased mitochondrial density
increased anaerobic enzymes
increased protein concentration
reduced reliance on intramuscular fat
Which of the following is the primary factor responsible for an increase in muscle hypertrophy in response to resistance training?
The concentration of anabolic hormone
An increase in the number of muscle fibers
The conversion of slow twitch fibers to fast twitch
The number of sarcomeres within a myofibril
The cellular organelle responsible for aerobic energy production is the ___________.
sarcoplasmic reticulum
actomyosin
sarcolemma
mitochondria
__________ is the primary fuel used to create ATP during a 3RM bench press test.
Glucose
Creatine Phosphate
Acetyl-CoA
Pyruvate
Cardiac output x (a-v)O2 difference represents _________, which determines the caloric cost of the exercise.
oxygen consumption (VO2)
blood pressure
rate-pressure product
myocardial demand
Although all energy systems are used to various extents, intense activities that last 30-45 seconds will predominantly rely on _________ for energy production.
phosphagen (ATP-CP)
anaerobic glycolysis
fat oxidation
aerobic glycolysis
Which of the following is the contractile unit of a skeletal muscle that runs in sequence along the myofibril?
Sarcoplasmic reticulum
Fascicule
Sarcomere
Actomyosin
The _________ is the first system of the body to adapt to exercise.
muscular system
nervous system
endocrine system
cardiovascular system
The voluntary action of muscle is controlled by signals from the nervous system called _________.
action potentials
motor signals
voluntary impulses
dynamic reflexes
A person’s approximate caloric expenditure for each liter of oxygen used is __________.
5 kcal
20 kcal
100 kcal
3,500 kcal
Diastolic blood pressure __________ during aerobic exercise and __________ during resistance training.
decreases, increases
slightly decreases, significantly decreases
slightly increases, significantly increases
increases, decreases
Which of the following is produced during energy metabolism and determines calories expended during an activity?
Water
Carbon dioxide
Oxygen
ATP
What rest interval between sets of 5RM deadlifts would ensure restoration of the phosphagen system and proper performance in the next effort?
30 seconds
60 seconds
90 seconds
120 seconds
Aerobic metabolism in the muscle cell occurs within which organelle?
mitochondria
golgi tendons
sarcomeres
muscle spindles
The amount of O2 used by the body during a training session is referred to as ___________.
VO2max
(a-v)O2 difference
oxygen uptake
ejection fraction
When prescribing balance and stability training, such as having a client stand on one foot while performing trunk rotation, the emphasis for improvement occurs through:
improvements in proprioception
antagonist inhibition
increased mass in local movers
improved endocrine response
What is the minimal rest time needed between vertical jump assessments so that the depleted ATP is fully replenished?
15 seconds
30 seconds
45 seconds
90 seconds
An individual’s blood pressure is a product of which two factors?
capillary density and glycogen storage
VO2max and peripheral resistance
cellular respiration and heart rate
heart rate and peripheral resistance
Initial improvements in strength associated with resistance training are primarily due to:
improvements in the nervous system
cardiovascular system adjustments
reduced endocrine system responses
delayed onset of fatigue due to reduced heart rate responses
