問題一覧
1
Metabolic systems involving a series of biochemical reactions resulting in the formation of ATP
energy systems
2
Major source of energy during the first 30 seconds of intense exercise
ATPPC
3
On ATP PC system, who is the chemical fuel source
PC
4
The maximum capacity of the system is small
ATP PC
5
The maximum power of the system is great
ATP PC
6
Glucose is the fuel source
anaerobic glycolytic
7
The maximum capacity of the system is intermediate
anaerobic glycolytic
8
The maximum power of the system is intermediate
anaerobic glycolytic
9
The systems provide energy for activity of moderate intensity and short duration
anaerobic glycolytic
10
The maximum capacity of the system is great
aerobic
11
The maximum power of the system is small
aerobic
12
The system predominates over the ither energy systems after the second minute of exercise
aerobic
13
Characterized by slow contractioe response
type i
14
Rich in myoglobin and mitochondria, have a high oxidative capacity and low anaerobic capacity, and are recruited for activities demanding endurance
type i
15
Fibers are supplied by small neurons with a low threshold of activation and are used preferentially in low intensity exercise
type i
16
Characterized by a fast contractile response
type iib
17
Have a low myohlobin content and few mitochondria, have a high glycolytic capacity and are recruited for activities requiring power
type iib
18
Have characteristics of both fibers and are recruited for both anaerobic and aerobic activities
type iia
19
Lasting only seconds develop muscle strengrh and stronger tendons and ligaments
bursts of intense activity
20
ATP is supplied by the phosphagen system
bursts of intense activity
21
Lasting 1 to 2 mins repeated after 4 minutes of rest or mild exercise enhances anaerobic power
intense activity
22
ATP is supplied by the phosphagen and anaerobic glycolytic system
intense activity
23
Less than maximum intensity for 3-5 mins repeated after rest or mild exercise of similar duration, may develop aerobic power and endurance capabilities
activity with large muscles
24
ATP is supplied by phosphagen, anaerobic glycolytic and aerobic systems
activity with large muscles
25
Lasting 20-30 mins or more taxes a high percentage of the aerobic system and develops endurance
activity of submaximum intensity
26
MET is equal to approximately ______ mL/kg per minute
3.5
27
Usually expressed as percentage
efficiency
28
Equals force times distance
work output
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Equals energy expenditure
work input
30
Expressed in power units or work per unit of time
work output
31
Expressed as the net oxygen consumption per unit of time
work input
32
Steady state is reached within 2-4 minutes after exercise has started if the load or resistance is kept constant
false
33
The higher the net oxygen cost, the lower the efficiency in performing the activity
true
34
Efficiency of large muscle activites is usually 30%-45%
false
35
Field tests for determining cardiovascular fitness include the time to run 1.5 miles or the distance run in 12 mins
true
36
Testing is usually completed in 4-7 treadmill stages, which progressively increase in speed and or grade. Each stage is 2-5 minutes long.
both false
37
Principles of stress testing
maintaining each workload for 1 min or longer, terminating the test at the onset of symptoms or a definable abnormality of the ECG, when available, measuring the individual’s VO2max, changing the workload by increasing the speed and or grade of the treadmill or the resistance on the bicycle ergometer, an initial workload that is low in terms of the individual’s anticipated aerobic threshold
38
Used clinically to evaluate patients with chest sensations or a history of chest pain to establush the probability that such patients have coronary disease
stress test
39
Can also evaluate the functional capacity of patients with chronic disease
stress test
40
Termination of stress testing include no increase in HR with an increase in exercise intensity
true
41
Each of the four to six stages last approximately 1 to 6 mins
multistage testing
42
Most popular treadmill protocol
bruce protocol
43
Can provide a direct measurement of VO2max by analyzing samples of expeled air
multistage testing
44
A frequency of two times a week does not generally evoke cardiovascular changes
true
45
Improve cardiovascular and muscular endurance
overload
46
Determine maximum HR
from multistage test, HR achieved in predetermined submaximum test, 220 minus age
47
Determine exercise HR
karvonen’s formula, percentage of maximum HR
48
The exercise diws not have ti be exhaustive to achieve a training response
true
49
Best measure of exercise intensity
VO2max