Fred, as usual, thanks for the nice feedback. Nice picture and nicely explained. Here another option for the more visual reader. It is a page from our basic MOXY intro course for our local kids here for the carrier prep program.
What is really fun is to see, that much of what we show here now as practical applications is somewhere published as a very theoretical option.
The main reason is still the believe, that we as grass root users either are not able to understand the ideas and or the cost is so high for NIRS equipment, that it is just limited to research grants and studies. MOXY in fact opens this amazing interesting practical application now to any body from individual athletes to coaches to small and bigger test centers and to teams and clubs.
In fact over the last few years we see a very strong split of actual real NIRS / MOXY applications with realistic use in the field and in the lab and a very disconnected direction of studies, desperately trying to force NIRS information in a crumbling theory of lactate threshold and VO2 max ideas.
Instead of using all the great experience we collected over all this years with lactate and VO2 and looking for improvement of some open questions the "classical" ideas left open, we see many studies coming in with the same fascinating idea to develop a very healthy imagination to find a LT in combination with MOXY or NIRS.
Here a very nice summary form a great group showing in short words , what we have on this discussion in "local ( cellular ) information and "global " systemic reactions.
The trigger starts at the local demand and the potential compensation may come from a more global respond.
I may show later the above statement in the attempt to find a LT with NIRS.
Detection of Hypoxia
at the Cellular Level
Laurie A. Loiacono, MD, FCCPa,b,c,*, David S. Shapiro, MDa,c
What is the Next Best Thing to Detection of Hypoxia at the Cellular Level?
Somewhere between direct detection of hypoxia at the cellular level (ie, biomarkers,
enzyme assays, complex histopathologic analyses) and indices of global hypoperfusion
(ie, lactate, ScVO2, urine output) lies a potentially more practical and economical
method of tissue oxygenation assessment: near-infrared spectroscopy (NIRS).
NIRS is an evolving technology that uses near-infrared light to provide a continuous
assessment of regional, microvascular blood flow and is measured as the quantitative
clinical variable tissue-oxygen saturation (StO2). Biologic tissues are transparent to
light in the near-infrared spectrum, whereas oxyhemoglobin (HbO2) and deoxyhemoglobin
(Hb) have significantly different spectra56 (StO2 5 HbO2/[HbO21 Hb]). This technology
can be used invasively via transcranial or percutaneous catheters, or
noninvasively using cutaneously applied probes.
Hypoxia (n.): a deficiency in the bioavailability of oxygen to the tissues of the body