問題一覧
1
Equals force times distance
work output
2
Steady state is reached within 2-4 minutes after exercise has started if the load or resistance is kept constant
false
3
Fibers are supplied by small neurons with a low threshold of activation and are used preferentially in low intensity exercise
type i
4
ATP is supplied by phosphagen, anaerobic glycolytic and aerobic systems
activity with large muscles
5
Determine exercise HR
karvonen’s formula, percentage of maximum HR
6
The maximum power of the system is intermediate
anaerobic glycolytic
7
Major source of energy during the first 30 seconds of intense exercise
ATPPC
8
The maximum capacity of the system is small
ATP PC
9
Have characteristics of both fibers and are recruited for both anaerobic and aerobic activities
type iia
10
The higher the net oxygen cost, the lower the efficiency in performing the activity
true
11
The systems provide energy for activity of moderate intensity and short duration
anaerobic glycolytic
12
The system predominates over the ither energy systems after the second minute of exercise
aerobic
13
The maximum capacity of the system is great
aerobic
14
Usually expressed as percentage
efficiency
15
Improve cardiovascular and muscular endurance
overload
16
On ATP PC system, who is the chemical fuel source
PC
17
The maximum capacity of the system is intermediate
anaerobic glycolytic
18
ATP is supplied by the phosphagen and anaerobic glycolytic system
intense activity
19
Most popular treadmill protocol
bruce protocol
20
The maximum power of the system is small
aerobic
21
Expressed in power units or work per unit of time
work output
22
The maximum power of the system is great
ATP PC
23
Metabolic systems involving a series of biochemical reactions resulting in the formation of ATP
energy systems
24
Field tests for determining cardiovascular fitness include the time to run 1.5 miles or the distance run in 12 mins
true
25
Rich in myoglobin and mitochondria, have a high oxidative capacity and low anaerobic capacity, and are recruited for activities demanding endurance
type i
26
The exercise diws not have ti be exhaustive to achieve a training response
true
27
Can also evaluate the functional capacity of patients with chronic disease
stress test
28
Termination of stress testing include no increase in HR with an increase in exercise intensity
true
29
Lasting only seconds develop muscle strengrh and stronger tendons and ligaments
bursts of intense activity
30
Characterized by a fast contractile response
type iib
31
Lasting 1 to 2 mins repeated after 4 minutes of rest or mild exercise enhances anaerobic power
intense activity
32
Have a low myohlobin content and few mitochondria, have a high glycolytic capacity and are recruited for activities requiring power
type iib
33
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
34
Each of the four to six stages last approximately 1 to 6 mins
multistage testing
35
Can provide a direct measurement of VO2max by analyzing samples of expeled air
multistage testing
36
A frequency of two times a week does not generally evoke cardiovascular changes
true
37
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
38
Efficiency of large muscle activites is usually 30%-45%
false
39
Expressed as the net oxygen consumption per unit of time
work input
40
Equals energy expenditure
work input
41
Lasting 20-30 mins or more taxes a high percentage of the aerobic system and develops endurance
activity of submaximum intensity
42
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
43
Glucose is the fuel source
anaerobic glycolytic
44
Characterized by slow contractioe response
type i
45
Best measure of exercise intensity
VO2max
46
ATP is supplied by the phosphagen system
bursts of intense activity
47
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
48
MET is equal to approximately ______ mL/kg per minute
3.5
49
Determine maximum HR
from multistage test, HR achieved in predetermined submaximum test, 220 minus age