TY - RPRT TI - Has Armstrong's cycle efficiency improved? AU - David T Martin AU - Marc J Quod AU - Christopher J Gore AU - Edward F Coyle PY - 2005 DO - 10.1152/japplphysiol.00507.2005 UR - https://pubmed.ncbi.nlm.nih.gov/16160031/ ID - 16160031 ER -