The
test is used to determine peak anaerobic power and anaerobic capacity.
Anaerobic power is the ability to produce energy by the ATP-PC energy pathway.
Anaerobic capacity is the combined ability of both anaerobic pathways to
produce energy and so is shown as the average power output during the test.
How to conduct the test
The testing device is a mechanically-braked
bicycle ergometer. After a 10 minute warm up the athlete begins pedaling as
fast as possible without any resistance. Within 3 seconds, a fixed resistance
is applied to the flywheel and the athlete continues to pedal “all out” for 30
seconds. An electrical or mechanical counter continuously records flywheel
revolutions in 5 second intervals.
Resistance
Flywheel resistanc equals 0.075kg per kg body
mass. For a 70kg person, the flywhell resistance would equal 5.25kg(70kg x
0.075). Resistance often increases to 1.0kg x body mass or higher(up to 1.3kg)
when testing power and sprint athletes.
Analysis
Analysis of the result is by comparing it with
the results of previous tests. It is expected that, with appropriate training
between each test, the analysis would indicate an improvement.
Calculations
Peak
Power Output(PP)
The highest power output, observed during the
first 5 sec of exercise, indicates the energy generating capacity of the
immediate energy system(intramuscular high energy phosphates ATP and PC). PP
is calculated as follows:
- PP = Force x Distance (number of revolutions x distance per
revolution) / time in minutes(5 seconds = 0.0833 minutes).
Percentile norms for Peak Power for active
young adults are:
|
Male
|
Female
|
%
Rank
|
Watts/kg
|
Watts/kg
|
90
|
822
|
560
|
80
|
777
|
527
|
70
|
757
|
505
|
60
|
721
|
480
|
50
|
689
|
449
|
40
|
671
|
432
|
30
|
656
|
399
|
20
|
618
|
376
|
10
|
570
|
353
|
Peak power output relative to body mass is calculated as follows:
- RPP = PP / Body mass(kg)
Percentile norms for Relative Peak Power for
active young adults are:
|
Male
|
Female
|
%
Rank
|
Watts/kg
|
Watts/kg
|
90
|
10.89
|
9.02
|
80
|
10.39
|
8.83
|
70
|
10.20
|
8.53
|
60
|
9.80
|
8.14
|
50
|
9.22
|
7.65
|
40
|
8.92
|
6.96
|
30
|
8.53
|
6.86
|
20
|
8.24
|
6.57
|
10
|
7.06
|
5.98
|
Anaerobic
fatique(AF)
AF represents the systems total capacity to
produce ATP via the immediate and short-term energy systems. AF provides
percentage decline in power output and is calculated as follows:
- AF = highest 5 sec PP – lowest 5 sec PP/ highest 5 sec PP x 100
Anaerobic
capacity(AC)
Total work accomplished in 30 seconds. AC is
calculated as follows:
- AC = sum of each 5 sec PP or
- AC = force x total distance in 30 seconds.
Target
group
This test is suitable for sprint cyclists and
sprinters but not for individuals where the test would be contraindicated.
Reliability
Reliability would depend upon how strict the
test is conducted and the individual’s level of motivation to perform the test.
Validity
Assessment of anaerobic performance can provide
the coach with valuable information about the athlete’s fitness status as well
as allowing them to monitor progress through training. The test scores can
reliably determine peak anaerobic power, anaerobic fatique, and total anaerobic
capacity.
0 коментара:
Постави коментар