Taylor Liu

Abstract Conflicting data exist about whether race/ethnicity affects risk of atrial fibrillation (AF) but less is known about how race/ethnicity is associated with AF burden in paroxysmal AF. We identified members of Kaiser Permanente Northern and Southern California healthcare systems who underwent 14-day continuous ambulatory electrocardiographic monitoring (ZIO® XT Patch, iRhythm Technologies, Inc.) between October 2011-October 2016 and had paroxysmal AF during monitoring.

1 INTRODUCTION Electrically stimulated muscle exhibits an ‘oxygen-conforming’ response of force production at a given stimulation in both human (Fitzpatrick et al., 1996; Hobbs & McCloskey, 1987; Luu & Fitzpatrick, 2013) and animal (Hobbs & McCloskey, 1987; Hogan, Kohin, et al., 1999) models. Specifically, muscle force production decreases when oxygen delivery is reduced, but rapidly (within 60 s) recovers when oxygen delivery is restored.