title: The moderating effect of physical activity on cardiovascular reactivity following single fat feedings.
abstract: This experiment examined the effects of consuming a high-fat meal on cardiovascular reactivity and the ability of exercise to act as a moderator between dietary fat consumption and cardiovascular reactivity. Forty healthy, college-age students were randomly assigned to one of four experimental groups: (1) low-fat meal, no exercise; (2) low-fat meal, postprandial exercise; (3) high-fat meal, no exercise; and (4) high-fat meal, postprandial exercise. To induce stress, all participants performed a public speaking task, while heart rate and blood pressure reactivity were measured. Multilevel analyses revealed that consuming a high-fat meal led to heightened mean arterial pressure reactivity. Acute high-intensity exercise resulted in attenuated heart rate and mean arterial pressure reactivity. The results of this study offer insight into how diet and exercise may influence cardiovascular reactivity, which is a key determinant of cardiovascular disease.
authors.affiliation: Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas 78712, USA. katiefaulk@utexas.edu
authors.forename: Kathryn E
authors.initials: KE
authors.lastname: Faulk
authors.forename: John B
authors.initials: JB
authors.lastname: Bartholomew
mesh_terms: D000293:Adolescent; D000328:Adult; D001794:Blood Pressure / Q000187:drug effects; D002319:Cardiovascular System / Q000187:drug effects*; D004041:Dietary Fats / Q000494:pharmacology*; D015444:Exercise / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D019518:Postprandial Period; D013315:Stress, Psychological
chemical_list: D004041:Dietary Fats