Plasma agouti-related protein (AGRP), growth hormone, insulin responses to a single circuit-resistance exercise in male college students.
The ability of acute exercise to stimulate appetite and food intake depends on intensity, duration, and agouti-related protein (AGRP) levels. Fasting, as well as any negative energy balance, has been reported to increase AGRP expression in the arcuate nucleus (ARC) of the hypothalamus and other extra-hypothalamic tissues in human and rats. The purpose of the present study was to investigate the response of plasma AGRP, GH and insulin to a single circuit-resistance exercise. Twenty volunteer male college students completed a single bout of circuit-resistance training (10 exercises at 35% of 1RM). Blood samples were collected before, immediately and 30 min following the exercise protocol. Plasma AGRP and GH levels showed a significant increase immediately after exercise and returned to pre exercise values during the recovery period. The data indicate that exercise protocol was able to increase plasma AGRP and GH levels. A higher plasma AGRP level might result in an acute exercise-induced hyperphagia and help to fuel post-exercise restoration processes.
Ghanbari-Niaki
Abbass
A
Department of Physical Education and Sports Sciences, Faculty of Humanity Sciences, Tarbiat Modares University, PO Box 14115-39, Tehran, Iran. ghanbari@modares.ac.ir
Nabatchian
Saeid
S
Hedayati
Mehdi
M
D000328:Adult; D054366:Agouti Signaling Protein; D054369:Agouti-Related Protein; D015444:Exercise / Q000502:physiology*; D013006:Growth Hormone / Q000097:blood*; D006801:Humans; D007328:Insulin / Q000097:blood*; D036341:Intercellular Signaling Peptides and Proteins / Q000097:blood*; D008297:Male; D013334:Students; D014495:Universities
C515198:AGRP protein, human; D054366:Agouti Signaling Protein; D054369:Agouti-Related Protein; D007328:Insulin; D036341:Intercellular Signaling Peptides and Proteins; D013006:Growth Hormone