Flashcards in Chapter 9 - Enhancing Health, Study, Work and Play through Physical Fitness Deck (89)
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1
fitness includes what 6 things?
1) Cardiorespiratory endurance
2) Flexibility
3) body composition
4) muscular strength
5) muscular power
6) muscular endurance
2
define physical fitness
the ability of the body to adjust to the demands and stresses of physical effort
3
what is physical fitness thought to be a measure of?
physical fitness is thought to me a measure of ones physical health
4
define physical activity
any movement carried out by the skeletal muscles
5
physical activity requires the use of ______
energy
6
muscle strength
the ability of a muscle or muscle group to exert force against a resistance
7
true or false: muscular strength is commonly measured as a maximal value
true
8
what is a synonym for strength?
force
9
greater muscle mass results in?
greater muscle mass results in greater strength
10
force = ____ x _____
force = mass x acceleration
11
power
the ability to overcome external resistance at a high rate of muscular contraction
12
what is the ability to exert fore dependent on?
muscular strength
13
_______ is a derivative of muscular strength
Power
14
muscular endurance
the ability of a muscle or muscle group to sustain a given level of force (static, exercise) or to repeatedly contract and relax (dynamic exercise) at a given resistance
15
what is an example of static exercise?
the flexed arm hang is an example of a static exercise
16
what is an example of a dynamic exercise?
sit-ups are an example of a dynamic exercise
17
agonist
working muscles
18
antagonist
counter-acting muscles
19
training should include exercises that stimulate both the ______ and the ______
agonists and antagonists
20
what 2 things happen when you focus only on increasing agonist strength?
1) tends to shorten the agonist muscles
2) tends to weaken the antagonist muscles
21
cardiorespiratory endurance
the ability to produce energy through an improved delivery of oxygen to working muscles
22
what 2 systems does cardiorespiratory endurance involve?
involves cardiovascular system and respiratory system
23
what is the major function of the cardiorespiratory system?
to provide oxygen to tissues
24
what is the cardiorespiratory system needed for?
exertion over longer periods of time
25
aerobic power
the maximal rate at which the body can take up, transport, and utilize oxygen
26
what is the maximal rate at which the body can take up, transport, and utilize oxygen expressed as?
maximal oxygen uptake or max VO2
27
what is max VO2 measured as?
max VO2 is measured as the maximal volume of oxygen consumption recorded during a progressive exercise test to exhaustion
28
predictions based on the _____ relationship between heart rate and workload can be made over a given workload range
linear
29
with increasing workload, ________ increases to a maximum that corresponds to a maximal oxygen consumption (max VO2)
heart rate
30
