The between-day reliability of fasted circulating irisin concentrations: a cohort study

被引：0
作者：
Newman, James E. [1 ,2 ]
Rose, Grace L. [1 ,2 ,3 ]
Farley, Morgan J. [3 ,4 ]
Flemming, Nicole [2 ,5 ]
Skinner, Tina L. [1 ,4 ]
Jenkins, David G. [1 ,3 ]
Askew, Christopher D. [1 ,2 ]
Schaumberg, Mia A. [1 ,2 ,3 ]
机构：
[1] Univ Sunshine Coast, Sch Hlth, Sippy Downs, Australia
[2] Sunshine Coast Hosp & Hlth Serv, Sunshine Coast Hlth Inst, Birtinya, Australia
[3] Univ Queensland, Sch Human Movement & Nutr Sci, Brisbane, Australia
[4] Univ Technol Sydney UTS, INSIGHT Res Inst, Fac Hlth, Human Performance Res Ctr, Sydney, NSW, Australia
[5] Griffith Univ, Sch Med & Dent, Birtinya, Australia
来源：
FACETS | 2025年 / 10卷
关键词：
irisin; between-day; reliability; sex; age; body composition; RESISTANCE EXERCISE; FOOD-INTAKE; ADULTS; SERUM; EXPRESSION; PLASMA; FAT;
D O I：
10.1139/facets-2024-0040
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Irisin blood concentrations are investigated in many applied physiology studies, however between-day reliability is required for accurate interpretation, particularly in longitudinal interventions. Between-day reliability of irisin was calculated, and the influence of participant characteristics explored. Venous blood was sampled 24 h apart in 32 rested and fasted healthy adults (males n = 15, 19-80 years). Plasma irisin concentrations were measured using MILLIPLEX (R) xMAP immunoassay analysis (Merck KGaA, Darmstadt, Germany). Irisin reliability was analysed using coefficient of variation (CV) and intraclass correlation coefficients (ICCs). Regression analysis was used to explore the influence of participant characteristics. Overall, irisin was reliable between days (CV 12.7%, ICC r = 0.963, p < 0.001), with no influence of participant characteristics, when pre-sampling controls (intake, activity) were applied.
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页数：6
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