Energy systems for 400m dash

The information you shared about rowing are all extremely interesting,as your insights as usual.Thank you.
What made your information about GDR training for rowing shared immediately stand out to my eyes is the biomechanical and movement analysis upon which all following Energy System considerations and training methodology are based upon.
Too often we lose sight of an istant by instant analysis of what is really happening during an event,hence losing focus of the real neurological and biological processes instantaneously involved,and their progressive complex interactions over time.