Abbass Ghanbari-Niaki1. 1. Department of Physical Education and Sport Sciences, University of Tarbiat Modarres, PO Box 14115-39, Tehran, Iran. ghanbari@modares.ac.ir
Abstract
INTRODUCTION: It has been suggested that ghrelin may play a role in growth hormone (GH) secretion to exercise. OBJECTIVE: The present study was designed to examine the effects of a single bout of circuit resistance exercise on plasma glucose, ghrelin, GH, and c-peptide, and cortisol. DESIGN AND METHODS: Fourteen volunteer male physical education students completed a single bout circuit resistance training (10 exercises, three circuits, and at 60% of 1-RM). Blood samples were collected before, immediately after the exercise, and 24-h following the exercise protocol. RESULTS: GH, glucose, and c-peptide showed a significant increase immediately after exercise and returned to pre exercise values over time. Plasma ghrelin showed a significant decrease immediately after the exercise and increased significantly 24-h following the exercise. CONCLUSION: In conclusion, a decrease in plasma ghrelin following a single bout of circuit resistance exercise indicates that an increase in GH is not related to plasma ghrelin levels. An acute exercise-induced hyperphagia during the long-recovery was considered.
INTRODUCTION: It has been suggested that ghrelin may play a role in growth hormone (GH) secretion to exercise. OBJECTIVE: The present study was designed to examine the effects of a single bout of circuit resistance exercise on plasma glucose, ghrelin, GH, and c-peptide, and cortisol. DESIGN AND METHODS: Fourteen volunteer male physical education students completed a single bout circuit resistance training (10 exercises, three circuits, and at 60% of 1-RM). Blood samples were collected before, immediately after the exercise, and 24-h following the exercise protocol. RESULTS: GH, glucose, and c-peptide showed a significant increase immediately after exercise and returned to pre exercise values over time. Plasma ghrelin showed a significant decrease immediately after the exercise and increased significantly 24-h following the exercise. CONCLUSION: In conclusion, a decrease in plasma ghrelin following a single bout of circuit resistance exercise indicates that an increase in GH is not related to plasma ghrelin levels. An acute exercise-induced hyperphagia during the long-recovery was considered.
Authors: Tanya M Halliday; Mollie H White; Allison K Hild; Molly B Conroy; Edward L Melanson; Marc-Andre Cornier Journal: Med Sci Sports Exerc Date: 2021-10-01
Authors: Ali Ataeinosrat; Marjan Mosalman Haghighi; Hossein Abednatanzi; Mohammad Soltani; Abbass Ghanbari-Niaki; Akbar Nouri-Habashi; Sadegh Amani-Shalamzari; Ali Mossayebi; Mitra Khademosharie; Kelly E Johnson; Trisha A VanDusseldorp; Ayoub Saeidi; Hassane Zouhal Journal: Front Physiol Date: 2022-02-21 Impact factor: 4.566