A very good, and recent, article by Matt Fitzgerald on lactate testing can be found at http://running.competitor.com/2013/11/training/go-by-feel-skip-the-lactate-threshold-test_53063
I am seriously thinking of 'investing' ??100 for a LT test because I do believe in getting accurate data using the most scientific methods possible. I make an analogy to having a golf pro look at your swing with his naked eye or by using the latest Trackman style technology which can tell you the exact swing plane you have got, how open the club face is on ball strike and swing speed etc. Both give results but the detail provided in the second option is much more accurate and can be monitored on a regular basis to check for improvements.
My concerns about spending ??100 is that it may well tell me that my LTT is say 85% of MHR - which is what I work on anyway.
I am also not convinced that my legs now ever let me let get anywhere near MHR.
Finally at aged 57 what difference is it likely to make to me anyway
I will probably still go for it though.
Great stuff Brian, interesting to see you have been doing it for so long. I have always had the view that it is good for a period of time and then you move onto a another plan (P&D probably being favourite with me)
PS Got my Forerunner back. I had asked once at the gym and nobody had handed it in but I asked today and there it was. The bad news is it will now prove how slowly I am running - might be a good reason to start HADDing again