HK 100 EXAM 2 QUESTIONS AND ANSWERS
What is the marathon wall - answers :around 20 miles
Depleted all glycogen store
Cannot use carbohydrate breakdown for energy
Running pace decreases
Ready to quit
Glycogen reproduction - answers :requires between 24 and 48 hours
So, high intensity and long duration exercise every day is not recommended
hard to eat enough, but person is continually depleted.
What is the energy released per liter of food for carbohydrates - answers :5.05 kcal
(21.2) kj
What is the energy released per liter of food for fats - answers :4.70 kcal (19.7) kj
What is the energy released per liter of food for protein - answers :4.82 kcal (20.2) kj
What is exercise capacity directly related to - answers :pre-exercise muscle glycogen
storage and the amount of dietary carbohydrate consumed
What is glycogen depletion associated with - answers :an inability to maintain the rate of
exercise and with the perception of fatigue "hitting the wall"
How long does it typically take to restore glycogen levels - answers :24-48 hours
What is the body's cooling system - answers :sweating
What is sweating rate dependent on - answers :the metabolic rate during exercise
What does loss of fluid lead to - answers :redistribution of fluid do to support sweating
What is seen as the best indicator of young people's aerobic fitness - answers :peak
oxygen uptake (vo2)
Physically dependent - answers :those who are debilitated by disease
What does the energy cost of an exercise depend on - answers :the intensity of the
workout, a person's bmi, the mechanical efficiency of the person exercising, and
sometimes weather and terrain.
Mechanical efficiency - answers :the energy cost used to accomplish a certain amount
of work (the body is at most 25% efficient)
Economy of movement - answers :the oxygen cost of a particular exercise
, When is energy cost at its highest - answers :when all or a lot of the muscles in the
body are being used (running)
Why is it important to measure the energy cost of exercise - answers :for understanding
the physiological responses for exercise and the regulation of metabolism during
exercise
Physically frail - answers :those with conditions affecting functional capacity in tasks of
daily living
Physically independent - answers :the majority of adults who are free from disease but
do not exercise regularly
Physically fit - answers :those who are sufficiently physically active to achieve health
benefits.
Physically elite - answers :
What are the sex and age differences in peak vo2 - answers :at puberty boys rib cage
increases by 25%
Larger lungs can intake more oxygen
Boys have about a 10% greater stroke volume than girls
Is training beneficial before puberty - answers :yes, and after
High intensity training shows benefits
Strength training (high repetitions) shows increases in strength without increase in
hypertrophy
What does 1rm mean - answers :he maximal weight an individual can lift for only one
repetition with correct technique.
Which sex has a higher resting heart rate - answers :girls
Which sex has a higher cardiac muscle mass, and in turn higher cardiac output -
answers :boys, by 7-13 percent
By the end of puberty, who has more type i (slow twitch) muscle fibres - answers
:women
Which fibre is bigger in men - answers :the muscle ii (fast twitch) fibres
Muscle strength - answers :the ability of the muscles to exert force to move one's body,
propel an object, or move and resist external forces
What is the marathon wall - answers :around 20 miles
Depleted all glycogen store
Cannot use carbohydrate breakdown for energy
Running pace decreases
Ready to quit
Glycogen reproduction - answers :requires between 24 and 48 hours
So, high intensity and long duration exercise every day is not recommended
hard to eat enough, but person is continually depleted.
What is the energy released per liter of food for carbohydrates - answers :5.05 kcal
(21.2) kj
What is the energy released per liter of food for fats - answers :4.70 kcal (19.7) kj
What is the energy released per liter of food for protein - answers :4.82 kcal (20.2) kj
What is exercise capacity directly related to - answers :pre-exercise muscle glycogen
storage and the amount of dietary carbohydrate consumed
What is glycogen depletion associated with - answers :an inability to maintain the rate of
exercise and with the perception of fatigue "hitting the wall"
How long does it typically take to restore glycogen levels - answers :24-48 hours
What is the body's cooling system - answers :sweating
What is sweating rate dependent on - answers :the metabolic rate during exercise
What does loss of fluid lead to - answers :redistribution of fluid do to support sweating
What is seen as the best indicator of young people's aerobic fitness - answers :peak
oxygen uptake (vo2)
Physically dependent - answers :those who are debilitated by disease
What does the energy cost of an exercise depend on - answers :the intensity of the
workout, a person's bmi, the mechanical efficiency of the person exercising, and
sometimes weather and terrain.
Mechanical efficiency - answers :the energy cost used to accomplish a certain amount
of work (the body is at most 25% efficient)
Economy of movement - answers :the oxygen cost of a particular exercise
, When is energy cost at its highest - answers :when all or a lot of the muscles in the
body are being used (running)
Why is it important to measure the energy cost of exercise - answers :for understanding
the physiological responses for exercise and the regulation of metabolism during
exercise
Physically frail - answers :those with conditions affecting functional capacity in tasks of
daily living
Physically independent - answers :the majority of adults who are free from disease but
do not exercise regularly
Physically fit - answers :those who are sufficiently physically active to achieve health
benefits.
Physically elite - answers :
What are the sex and age differences in peak vo2 - answers :at puberty boys rib cage
increases by 25%
Larger lungs can intake more oxygen
Boys have about a 10% greater stroke volume than girls
Is training beneficial before puberty - answers :yes, and after
High intensity training shows benefits
Strength training (high repetitions) shows increases in strength without increase in
hypertrophy
What does 1rm mean - answers :he maximal weight an individual can lift for only one
repetition with correct technique.
Which sex has a higher resting heart rate - answers :girls
Which sex has a higher cardiac muscle mass, and in turn higher cardiac output -
answers :boys, by 7-13 percent
By the end of puberty, who has more type i (slow twitch) muscle fibres - answers
:women
Which fibre is bigger in men - answers :the muscle ii (fast twitch) fibres
Muscle strength - answers :the ability of the muscles to exert force to move one's body,
propel an object, or move and resist external forces
