Data are mean ± SD for 40 amateur runners. CK = creatine kinase; LDH = lactate dehydrogenase; ALT = alanine transaminase; AST = aspartate transaminase; GGT = gamma-glutamyltransferase
NIRS (1sec), HR(1sec), mechanical power (1 sec) and VO2 (5sec) data from 12 participants completing three protocols involving 1) HIIT with passive recovery periods separating exercise bouts (PASS) 2)
