1. Vertical Jump Margaria Kalamen Wingate
Anaerobic Power
Vertical Jump
Margaria Kalamen
Wingate

2. What are we trying to measure?
Two Anaerobic Systems
1-ATP – CP Energy System
Immediate Energy system
Free ATP in the muscles
Rephosphorylization of ADP by PCr
2-Glycolysis
Short Term Energy System

3. Physiological Definitions
Anaerobic Power:
concept: production of energy (ATP) per unit time
measured value: mechanical power during short duration maximal exercise
Remember...
Work: A force applied over a distance (F x d) also the area under a curve of power vs. time (P x t)
Power: Work per unit time (W/t)

4. Subcategories of Anaerobic Power
Peak
The highest value reached
Must be measured over a very short time duration (≤ 5s)
Mean/Average
The mean is the average power value over the entire duration of the test
Sometimes referred to as anaerobic capacity
In the case of the vertical jump the mean and average have specific and different meanings
Mean – the total work of the jump divided by the time to reach the maximum height
Average – the average power while the muscles are exerting force

5. More Physiological Definitions
Fatigue Index
Concept: Measures endurance during short duration high intensity exercise
Measured: the rate of decrease in power over a period of time

6. Relative vs. Absolute Measures
Relative Measurements:
Measurements standardized by dividing by body mass
Typically done for measurements that depend on muscle mass
Relative measures can be compared between people of different sizes and between men and women.
Absolute Measurements:
Measurements not standardized by dividing by body mass
The term absolute is not necessary, but provides clarity when also dealing with relative measurements.

7. Ways to Examine These Energy Systems
Vertical Jump
Margaria Kalamen
Wingate

8. Vertical Jump Variables Procedure Calculations Mass of Subject
Height of Subject
Height of Jump
Procedure
3 Trials
No stepping into the jump
Using arms tends to help
Calculations
Absolute Anaerobic Power (Mean & Average)
Absolute & Relative Peak Anaerobic Power

9. Margaria Kalamen Variables Procedure Calculations Mass of Subject
Height of Stairs
Time between Stairs
Procedure
Run up six stairs two at a time
Start time on the 2nd step end on the 6th
Calculations
Absolute & Relative Anaerobic Power

10. Wingate Variables Procedure Calculations Mass of Subject Mass of Load
Number of Pedal Revolutions in 5 s Periods for 30 s
Procedure
Subject Pedals as fast as possible with no load for ~ 5-10s
Subject Pedals as fast as possible for 30 s with load
Calculations
Peak Anaerobic Power (absolute and relative)
Fatigue Index
Total Work

11. Success of Measurements in Studying the Anaerobic Systems
All tests are measures of performance
Variations in these particular tests may have a lot to do with muscular attributes that are not related to energy production
Variables that have the same name are measures of the same concepts, but not the same actual values

12. Problems with Performance Measures
Daily variance
Motivation
Learning effect
Not a direct measurement of physiological variables
Relationships to physiological variables (and other performance tests) must be determined and the accuracy of prediction can then be found

13. Relationships
The relationship between two variables can be easily determined by fitting a line to a graph of the variables
The goodness of fit is described by a value called the correlation (R)
R2 tells the percentage of the variance in the dependent variable that can be explained by the independent variable

14. Correlations R2 = 1 is a perfect relationship
R2 = 0 means there is no relationship
The level of acceptability in between 0 and 1 depends on the specific instance
For predictive success we will use the following criteria
R2 > 0.9 is very good
0.8 < R2 < 0.9 is good
0.7 < R2 < 0.8 is adequate
R2 < 0.7 is poor