Originally Posted by gregf83

What is 'internal data'?

Here is an example (from Short intervals induce superior training adaptations compared with long intervals in cyclists – An effort-matched approach) of what people expect to see as evidence that a particular approach has merit:



This is the reason people pay attention to metrics like FTP. It's a simple metric to gauge the efficacy of a particular training regime that doesn't require a lab to measure.

Unless you can show that your measures directly correlate to actual performance you're going to continue talking to yourself and no one will be listening.