How is the performance development graph interpreted?

The Performance Development Chart – also known as the Performance Management Chart (PMC) – shows how an athlete’s performance changes. It helps you monitor the short- and long-term effects of training. The chart is composed of the following parameters:

  • Training Stress Score® (TSS®, red dots in the graph) –> stress of the individual trainings
  • Fatigue (purple curve), exponentially weighted average training load over the past 7 days -> acute training load
  • Fitness (blue curve), exponentially weighted average training load of the past 42 days -> chronic training load
  • Form (green curve), fitness minus fatigue of the previous day -> resulting form

 

The TSS points form the basis of the graph. These are calculated for all athletes based on the information in the individual metabolic profile. The duration and intensity of the training are taken into account.

The formula for calculating TSS points for cycling is: (sec x NP® x IF®)/(FTP x 3600) x 100.

“sec” = duration of the training session
“NP” = Normalized Power (weighted power that represents the actual physiological stress in which load changes are taken into account)
“IF” = Intensity Factor (intensity of a training session, NP/FTP)
“FTP = Functional Threshold Power (average maximum power that can be generated during one hour).

A one-hour bike ride completed exactly at the FTP gives 100 TSS points accordingly.

The formula for calculating TSS points for running (rTSS) is: (sec x NGP x IF)/(FTP x 3600) x 100.

“NGP” = Normalized Graded Pace (weighted pace that reflects the actual physiological stress in which load changes are taken into account).
“IF” = Intensity Factor (intensity of a training session, NGP/FTP)
“FTP” = Functional Threshold Pace (average maximum pace that can be run during one hour (94% of the stated 5000 meter best time)

A one-hour run completed exactly at the FTP gives 100 TSS points accordingly.

The formula for calculating TSS points for swimming (sTSS) is: IF3 x swimming time in hours x 100

“IF” = Intensity Factor (intensity of the training session, NSS/FTP)
“NSS” = Normalized Swim Speed (distance in relation to time in m/min)
“FTP” = Functional Threshold Pace (in m/min, derived from the given 400m best time)

 

Normalized Power® (NP®), Intensity Factor® (IF®) and Training Stress Score® (TSS®) are registered trademarks of Peaksware, LLC.

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