Coaching with WKO4storage.trainingpeaks.com.s3.amazonaws.com/assets/downloads/C… · My...
Transcript of Coaching with WKO4storage.trainingpeaks.com.s3.amazonaws.com/assets/downloads/C… · My...
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Coaching with WKO4Education #1 | Power Duration Model and Metrics
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INSIGHT Accelerated
Questions
• User Control Panel
– Open with orange
arrow
• Find the questions
title and open
• Type your questions
• Ask as we go
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INSIGHT Accelerated
My psychiatrist told me I was crazy, and I
said I wanted a second opinion. He said,
“Okay, you're ugly too.”
Rodney Dangerfield
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INSIGHT Accelerated 4
Session 1:Objectives
Background
Review and understand the Power-Duration Curve Model and its uses
Metrics
Build an understanding of the key metrics derived from the power duration curve model
Case Study
Give overview and example of use
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INSIGHT Accelerated
Power-Duration Curve Model
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INSIGHT Accelerated
WKo4 Analytical Engine
WKO4
Analytics
Engine
Math
Model
Visual Display
Data
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To build the only analytics engine specifically built for the endurance community, we need a “model”
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INSIGHT Accelerated
…so, lets start with understanding
human performance modeling
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INSIGHT Accelerated
Human Performance Modeling
data-driven development and application
of predictive, reliable, and executable
quantitative models of human
performance
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INSIGHT Accelerated
Example: Critical Power Model
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Monnod
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INSIGHT Accelerated
The Modern Athlete
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Technology
Science
Information
Robust Human Performance Model
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INSIGHT Accelerated
Power-Duration Model
a superior approach
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INSIGHT Accelerated
A new beginning…
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COGGAN:POWER-DURATION CURVE
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INSIGHT Accelerated 13
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INSIGHT Accelerated
So why did you build a power-
duration model?
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INSIGHT Accelerated
Why a PDC Model?
The perceived answer has been:
TO DO A BETTER JOB AT
PREDICTING POWER AT
VARIOUS DURATIONS
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Slide contribution: Dr. Andrew Coggan
INCORRECT
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INSIGHT Accelerated
A better system of modeling
Using the exercising athlete to better understand
their physiology…
…and using their specific physiology to better
understand how to specifically train them.
Athlete Physiology Performance
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INSIGHT Accelerated
…by building a robust model that
gave us specific insight into the
athlete’s physiology, we can better
understand the dose-and-
response relationship
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INSIGHT Accelerated
Metabolic Pathways
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Metabolic Pathways
Resynthesize ATP
Anaerobic
without O2
ATP-CP SystemATP/Creatine Phosphate
Glycolysis SystemCarbohydrates
Aerobic
with O2
Oxidative System
Fats, CHO, Proteins
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INSIGHT Accelerated
Prediction vs. Physiology
The end goal was to more closely estimate the
performing athlete historical and current
physiology…why?
– Models based on prediction tend to overpredict
– Individualization of the training process
– To gain insight into the underlying physiology
– To improve both understanding and tracking of the
dose-response mechanism in endurance training
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INSIGHT Accelerated
…so what is the
basis of this model?
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INSIGHT Accelerated
Mathematical Basis
A few points about the mathematical basis of the PDC model
– Proprietary and black box; why?
– Based on all data over the course of select days (90 days)
– Needs a small range of maximal data: short, medium, and long
– Subject to GIGO (garbage in, garbage out)
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INSIGHT Accelerated
…but is it accurate?
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INSIGHT Accelerated
Distribution of normalized residuals: WKO4
model
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Mean absolute error = 3.2 ± 2.8%
Slide contribution: Dr. Andrew Coggan
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INSIGHT Accelerated
Comparison of root mean
squared errors
Model RMSE
CP1-10 8.5±2.6%
CP3-30 12.3±4.5%
CP 3-parameter 1.1±0.4%
AIS 4.6±0.9%
Ward-Smith 2.5±0.6%
Pinot and Grappe 1.1±0.6%
WKO4 model 0.3±0.1%
Ɵ = 𝑣𝑎𝑟𝑖𝑎𝑛𝑐𝑒 + 𝑏𝑖𝑎𝑠
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Slide contribution: Dr. Andrew Coggan
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INSIGHT Accelerated
CP1-10 CP3-30 CP 3-parameter
AIS Ward-Smith Pinot and Grappe
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Limitations of other models: residuals
Slide contribution: Dr. Andrew Coggan
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INSIGHT Accelerated
Power-Duration Metrics
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INSIGHT Accelerated
Response to training is a
complex phenomenon.
A simple starting point
We need to look deeper than just
critical power or FTP
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INSIGHT Accelerated
Power-Duration Metrics
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Phenotype
Pmax
FRC
mVO2max
mFTPStamina
TTE
mFiberType
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INSIGHT Accelerated
Power-Duration Metrics
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Phenotype
Pmax
FRC
mFTP
Stamina
TTEmVO2max
mFiberType
Enhanced Power Profile
Elevation Corrected
Power
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INSIGHT Accelerated
Phenotyping
The objective (i.e., statistically-based) classification of an athlete into one of four (for now) phenotypes (e.g., “sprinter”), based on the overall shape of their power-duration relationship.
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Pheno
TTer
All-rounder
Sprinter
Pursuiter
the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment
Phenotype
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INSIGHT Accelerated
Phenotypes
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INSIGHT Accelerated
Power-Duration Metrics
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Phenotype
Pmax
FRC
mVO2max
mFTPStamina
TTE
mFiberType
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INSIGHT Accelerated
Pmax
The maximal power that can be generated for a
very short period of time. Units are W or W/kg.
The maximum power over at least a full pedal
revolution with both legs.
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INSIGHT Accelerated
Metabolic Pathways
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Metabolic Pathways
Resynthesize ATP
Anaerobic
without O2
ATP-CP SystemATP/Creatine Phosphate
Glycolysis SystemCarbohydrates
Aerobic
with O2
Oxidative System
Fats, CHO, Proteins
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INSIGHT Accelerated
Pmax Advantage vs. Max Power
• Full revolution avoids power spikes; mode-
driven metric, uses multiple points on model
• Most units record the data at the end of the
record rate; Pmax ensures some balance, re-
ensuring at least one full revolution
• Model – no infinite time/infinite power issue
• Better than max 5 second as not affected by
fatigue
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INSIGHT Accelerated 36
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INSIGHT Accelerated
Functional Reserve Capacity (FRC)
The total amount of work that can be done
during continuous exercise above FTP before
fatigue occurs. Units are kJ or J/kg.
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INSIGHT Accelerated
Metabolic Pathways
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Metabolic Pathways
Resynthesize ATP
Anaerobic
without O2
ATP-CP SystemATP/Creatine Phosphate
Glycolysis SystemCarbohydrates
Aerobic
with O2
Oxidative System
Fats, CHO, Proteins
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INSIGHT Accelerated
Compared to AWC
Anaerobic Work Capacity
(AWC) is a measure of the
total work that can be
performed utilizing only
stored energy sources
within the muscle, including
Adenosine Triphosphate
(ATP), phosphocreatine,
glycogen, and the oxygen
bound to myoglobin.
Functional Reserve
Capacity (FRC) is the total
amount of work that can be
done during continuous
exercise above FTP before
fatigue occurs. Units are kJ
or J/kg.
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Based on Critical Power as basis Based on Functional Threshold Power as basis
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INSIGHT Accelerated
FRC Standards
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INSIGHT Accelerated
How does FRC “Convert” to
Watts?
A Kilojoule is simply a thousand joules, and a joule
is equal to watts x seconds (J= W x s). So when
you do 400 watts for 5 seconds, you’ve used 2,000
joules, or roughly 2 KJs!
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INSIGHT Accelerated
Effect of Time over FTP
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Full
Pmaxdetermines
maximal usage / drain
When the “battery” is
empty, rest must occur
Rest MUST occur
under FTP
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INSIGHT Accelerated
modeled VO2max (VO2max)
the maximum amount of oxygen the body can
use during a specified period of usually intense
exercise
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INSIGHT Accelerated
Why Vo2max?
44Slide from “Vo2max what does it really mean” by Dr. Andrew Coggan
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INSIGHT Accelerated
Modeled Functional Threshold Power (mFTP)
mFTP is the model-derived highest power a rider
can maintain in a quasi-steady-state without
fatiguing.
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INSIGHT Accelerated
Metabolic Pathways
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Metabolic Pathways
Resynthesize ATP
Anaerobic
without O2
ATP-CP SystemATP/Creatine Phosphate
Glycolysis SystemCarbohydrates
Aerobic
with O2
Oxidative System
Fats, CHO, Proteins
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INSIGHT Accelerated 47
Men Women
Range 191-440 W 173-316 W
Average 319 W 247 W
SD 54 W 32 W
Low <265 W <215 W
Med 266-372 W 216-279 W
High >373 W >280 W
mFTP standards
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INSIGHT Accelerated
Success
Functional Threshold Power (FTP)
is the greatest (but not only)
indicator of performance success
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INSIGHT Accelerated
Power-Duration Metrics
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Phenotype
Pmax
FRC
mVO2max
mFTPStamina
TTE
mFiberType
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INSIGHT Accelerated
Time To Exhaustion (TTE)
the maximum duration for which a power equal
to FTP can be maintained
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INSIGHT Accelerated
TTE
• Increase FTP. Training to improve FTP is
typically focused on lifting the Power-Duration
Curve by increasing the amount of power one
can put out in this quasi-steady state.
• Extending TTE. Training to extend the maximum
duration at which a power equal to FTP can be
maintained.
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INSIGHT Accelerated
Stamina
A measure of resistance to fatigue during
prolonged-duration, moderate-intensity (i.e., sub-
FTP) exercise. Units are percent of maximum,
i.e., 0-100%, although most individuals will fall in
the 70-90% range.
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INSIGHT Accelerated
Why do I want Stamina?
• Ability to reduce
decline in power
output over extended
durations
• Ability to stay on the
Power-Duration Curve
for “over-extended”
durations
• Beware: High costs
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INSIGHT Accelerated
Stamina
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INSIGHT Accelerated
Use Case
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INSIGHT Accelerated
We improve that which we measure!
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INSIGHT Accelerated
Benefit Highlights
Specific
response
Specific
cost
Align to performance demand
Better understanding of athlete ability
360 View
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INSIGHT Accelerated
Sprint Training
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Phenotype
Pmax
FRC
mVO2maxmFTP
TTE
Quantify the change
Sprint
Before After
Pmax 1,375 1,515
FRC 15.5 kjs 16.8 kjs
VO2max 65.1 65.3
mFTP 255 240
TTE 50:30:00 38:34:00
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INSIGHT Accelerated
Crit & 1 Day Training
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Phenotype
Pmax
FRC
mVO2maxmFTP
TTE
Quantify the change
CRIT / ROAD
Before After
Pmax 1,375 1,355
FRC 15.5 kjs 19.8 kjs
VO2max 65.1 66.8
mFTP 255 248
TTE 50:30:00 41:25:00
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INSIGHT Accelerated
MTB Training
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Phenotype
Pmax
FRC
mVO2maxmFTP
TTE
Quantify the change
MTB
Before After
Pmax 1,375 1,324
FRC 15.5 kjs 19.3 kjs
VO2max 65.1 67.1
mFTP 255 257
TTE 50:30:00 36:40:00
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INSIGHT Accelerated
TT Training
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Phenotype
Pmax
FRC
mVO2maxmFTP
TTE
Quantify the change
TT
Before After
Pmax 1,375 1,100
FRC 15.5 kjs 16.5
VO2max 65.1 67.1
mFTP 255 272
TTE 50:30:00 40:00:00
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INSIGHT Accelerated
Q&Ahttps://www.youtube.com/playlist?list=PLOhzd0zmrJznNH_fz5oO9UwwVm_KXsLQ3
Demystifying the WKO4 Power Duration Curve
Individualizing your Training with WKO4
Building Pmax and Functional Reserve Capacity in WKO4
Building Functional Threshold Power and Stamina
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