Galvanic skin response and serum orexin-A levels in humans increase during aerobic exercise

3^rd International Conference on Medical Physics & Biomedical Engineering

November 07-08, 2016 Barcelona, Spain

Messina G, Moscatelli F, Messina A, Valenzano A, Lonigro A, Monda V, Chieffi S, Cibelli G and Monda M

Seconda Universit�  degli Studi di Napoli, Italy
University of Foggia, Italy

Scientific Tracks Abstracts: J Bioengineer & Biomedical Sci

Abstract :

Introduction: Orexin-A is a hypothalamic neuropeptide produced in the dorsal and lateral hypothalamus and orexin-producing cells have widespread anatomical projections within the central nervous system. Orexin-A is involved in multiple physiological functions, including eating behavior, thermoregulation and sleep-regulation. Aim: As the exercise elicits stimulation of the sympathetic activity and temperature rise, the purpose of this experiment is to reveal possible association between exercise and plasmatic concentration of orexin-A which is a peptide involved in the sympathetic and thermogenic reactions. Materials & Methods: Blood samples were collected from participants (men, n=20) before (times 0 and 15 min.) and after (times 30, 45, 60 min.) a cycle ergometer exercise at 75 W for 15 min. Also heart rate, galvanic skin response and rectal temperature were monitored. Results: The exercise induced a significant increase (p<0.01) in plasmatic orexin A with a peak at 30 min after the exercise bout in association with an increase of the other three monitored variables: HR (p<0.01), GSR (p<0.05) and rectal temperature (p<0.01). Conclusion: These findings are the first demonstration which indicates that plasmatic orexin-A, heart rate, galvanic skin response and rectal temperature is involved in the reactions to aerobic exercise.

Biography :

Messina Giovanni has a degree in Medicine and Surgery, specialized in Nutrition and Sports Medicine, has a PhD in Food and Health at the Second University of Naples, Italy; He is Assistant Professor of Physiology and Human Nutrition at the Department of Clinical and Experimental Medicine - University of Foggia.

Email: giovanni.messina@unifg.it