Here we present a protocol to obtain several blood samples from the antecubital vein during high-intensity interval training. This protocol may be useful for the measurement of blood metabolites and endocrinal markers during exercise.
Nalbandian, M., Radak, Z., Takeda, M. Evaluation of Blood Lactate and Plasma Insulin During High-intensity Exercise by Antecubital Vein Catheterization. J. Vis. Exp. (135), e56890, doi:10.3791/56890 (2018).