If, below the images you see the color that belongs to each muscle, we analyze the deltoid and intercostal (11) and sterno (2) but I had problems. So I eliminated them, now I'm going to hang another test in which the sternocleido appears.
I just added the 2 global images because if there were not many images but you have the CSV to download the data.
I do not understand what you want to say with "so it happens there is high correlation of limiters by level of training". Can you explain to me more?
I say that the limiters and thresholds are the result of redirections of blood flow from one muscle to another (hemodynamics) and that the thresholds derive from the inability to mobilize this blood depending on the demand. Clearly we must take into account the pulmonary limitation or oxidative capacity to complete the paradigm, although it is debatable about pulmonary limitation because sometimes the pulmonary limitation is derived from a cardiac problem: A high blood velocity which does not allow a correct pulmonary diffusion, that is to say, the hemoglobin has a lower time of 0.25s of transit in the alveoli, which thing does not allow the hemoglobin with oxygen connection: Pulmonary Limitation caused by cardiac problem.
This article is very good and they talk about this:
Joyner, M. J., & Casey, D. P. (2015). Regulation of increased blood flow (hyperemia) to muscles during exercise: a hierarchy of competing physiological needs. Physiological reviews, 95(2), 549-601.