Page 1/12 Dose Effect of Caffeine Ingestion on Cardiac Parasympathetic Reactivation Following an Acute Bout of Anaerobic Performance Exercise in Recreational Athletes Amir Sarshin (  amsarshin@gmail.com ) Karaj Islamic Azad University Faculty of Physical Education and Sports Sciences Alireza Naderi Department of Sport Physiology, Boroujerd branch,Islamic Azad university,Boroujerd, Iran https://orcid.org/0000-0002-8539-4306 Carlos Janssen Gomes da Cruz Universidade de Brasilia Foad Feizolahi Karaj Islamic Azad University Faculty of Physical Education and Sports Sciences Scott C. Forbes Brandon University - Faculty of Health Studies Darren G. Candow University of Regina Faculty of Kinesiology and Health Studies Ebrahim Mohammadgholian Karaj Islamic Azad University Faculty of Physical Education and Sports Sciences Mehrdad Amiri Karaj Islamic Azad University Faculty of Physical Education and Sports Sciences Naghmeh Jafari Karaj Islamic Azad University Faculty of Physical Education and Sports Sciences Alireza Rahimi Karaj Islamic Azad University Faculty of Physical Education and Sports Sciences Eidi Alijani Karaj Islamic Azad University Faculty of Physical Education and Sports Sciences Conrad P. Earnest Texas A&M University College Station Research article Keywords: Exercise, Caffeine, Anaerobic Performance, Dietary Supplement, Heart Rate Variability, Autonomic Balance DOI: https://doi.org/10.21203/rs.3.rs-44977/v1 License:   This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License