title: CrossTalk opposing view: bradycardia in the trained athlete is attributable to a downregulation of a pacemaker channel in the sinus node.
authors: Institute of Cardiovascular Sciences, University of Manchester, 46 Grafton Street, Manchester, M13 9NT, UK.
authors: Alicia
authors: A
authors: D'Souza
authors: Sanjay
authors: S
authors: Sharma
authors: Mark R
authors: MR
authors: Boyett
mesh_terms: D056352:Athletes; D015536:Down-Regulation; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D064428:Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels / Q000235:genetics / Q000378:metabolism*; D009206:Myocardium / Q000378:metabolism; D012849:Sinoatrial Node / Q000378:metabolism*
chemical_list: D064428:Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels