The time course of irisin release after an acute exercise: relevant implications for health and future experimental designs

Author:

Tommasini EsterORCID,Missaglia SaraORCID,Vago PaolaORCID,Galvani ChristelORCID,Pecci Claudio,Rampinini ErmannoORCID,Bosio AndreaORCID,Morelli AndreaORCID,Bonanomi AndreaORCID,Silvestrini AndreaORCID,Mordente AlvaroORCID,Tavian DanielaORCID

Abstract

This study aimed to analyze the acute impact of exercise on serum irisin levels in 22 young (YA, 24.6 ± 3.5 yrs) and in 12 middle-aged male adults (MA, 54.6 ± 5.7 yrs) 15 min and 24 h after an incremental cycling exercise test to exhaustion. ELISA assay was used for serum irisin detection. Circulating irisin increased significantly from baseline (9.0 ± 2.0 ng/ml) to 15 min post-exercise (10.2 ± 2.0 ng/ml, P < 0.001), but the greatest increment was detected after 24 h (13.5 ± 2.5 ng/ml, P < 0.001) reaching more than 50% of the basal release. Levels were significantly higher in YA (9.7 ± 1.7 to 11.1 ± 1.8 to 14.5 ± 2.2 ng/ml) than MA (7.6 ± 1.6 to 8.7 ± 1.5 to 11.8± 2.2 ng/ml) for all measured time-points (P < 0.05). Nevertheless, MA showed a comparable increase in serum irisin levels when compared to YA. These findings highlight the importance of acute physical exercise as a countermeasure against age-related deterioration of skeletal muscle mass and function in both YA and MA.

Publisher

PAGEPress Publications

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