RT Journal Article SR Electronic T1 Sympathovagal Tone Assessed by Heart Rate Variability Is Directly Related to Body Mass Index, Percent Body Fat, and Skeletal Muscle in Healthy Male and Female Young Volunteers JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP S94 OP S94 VO 78 IS 8 suppl 1 A1 David Martinez Duncker R. A1 Martha Elva Rebolledo Rea A1 Ernesto González Rodríguez A1 David M. Duncker Rebolledo A1 Martha E.M. Duncker Rebolledo YR 2011 UL http://www.ccjm.org/content/78/8_suppl_1/S94.abstract AB