Chapter 13: Nutrition and Physical Activity Questions With Solutions
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Course
Nutrition & Physical Fitness
Institution
Nutrition & Physical Fitness
Chapter 13: Nutrition and Physical Activity
Questions With Solutions
cardiorespiratory fitness -determines how long you can continue a task, whether it is
climbing stairs, raking leaves, or running a race
-requires strength but also involves the cardiovascular and respiratory systems
musculo...
Chapter 13: Nutrition and Physical Activity
Questions With Solutions
cardiorespiratory fitness -determines how long you can continue a task, whether it is
climbing stairs, raking leaves, or running a race
-requires strength but also involves the cardiovascular and respiratory systems
musculoskeletal fitness -muscle strength and endurance enhance the ability to perform
tasks such as pushing or lifting
-increased by repeatedly using muscles in activities that require moving against a resisting force
-strength training or resisting training (weight lifting)
flexibility -determines range of motion
-being flexible may reduce the risk of pulled muscles and tendons
body composition -exercise builds and maintains muscle
-individuals who are physically fit have a greater proportion of lean body tissue than unfit
individuals of the same body weight
overload principle the more you do, the more you're capable of
, Chapter 13: Nutrition and Physical Activity
Questions With Solutions
what region in Canada has the most physically active population? least? most is BC
least is manitoba and maritimes
what diseases are strongly affected by physical inactivity osteoporosis, stroke, type 2
diabetes, heart disease, colon cancer, breast cancer, hypertension
what gender is more physically inactive? females
eating for exercise is an issue of: fuel, hydration, nutrients
What is the fuel for physical activity? ATP
Adenosine triphosphate (ATP) -the energy carrying molecule in the body
-ATP must be generate continuously since muscles have only enough ATP for 1-3 seconds of
activity
, Chapter 13: Nutrition and Physical Activity
Questions With Solutions
-ATP provides energy for all body processes
What do muscles do after depleting ATP stores? they turn to other sources:
-Creatine phosphate (CR) stores some energy that can be used to make ATP
- Creatine phosphate stores enough energy for 3-15 seconds of maximal physical effort
(e.g. sprinting, jumping, for very brief periods of time)
During first 15s of exercise, what fuel is used? What happens after that? -ATP in muscles
is used for the first 1-3 s of activity
-then for the next 8-10s Phosphocreatine stores are used
-after the creatine phosphate stores have been used up, the lungs still haven't had enough time to
produce O2 so anaerobic metabolism must occur, this lasts for the first 2-3 min of exercise
-after his aerobic metabolism occurs
-both aerobic and anaerobic metabolism use carbohydrates to produce ATP
what is the primary carbohydrate used to generate ATP? glucose
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