MilanLab Cisco Neural Network is A BIT out of my budget…
The problem is you think to performance from a field point of view
and try to analyze parameters as: resistence, acceleration, change of direction, power…etc…
HRV tell you about physiological state, i.e. cardiac recovery, recovery state of the system, hormonal status, stress/recovery level.
A simple point is: With the best physiologic profile you can have the best performance for that athlete level.
In soccer i.e. if you have a middlefiled with a poor recovery status and cardiac fatigue, how can he run 16 Km or walk/run 16 Km at his best?