Home > Journals > The Journal of Sports Medicine and Physical Fitness > Past Issues > The Journal of Sports Medicine and Physical Fitness 2017 December;57(12) > The Journal of Sports Medicine and Physical Fitness 2017 December;57(12):1680-6

CURRENT ISSUE
 

ARTICLE TOOLS

Publication history
Reprints
Cite this article as

THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

A Journal on Applied Physiology, Biomechanics, Preventive Medicine,
Sports Medicine and Traumatology, Sports Psychology


Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,215


eTOC

 

ORIGINAL ARTICLE  EPIDEMIOLOGY AND CLINICAL MEDICINE


The Journal of Sports Medicine and Physical Fitness 2017 December;57(12):1680-6

DOI: 10.23736/S0022-4707.16.06785-2

Copyright © 2016 EDIZIONI MINERVA MEDICA

language: English

Reliability of salivary cortisol and immunoglobulin-A measurements from the IPRO® before and after sprint cycling exercise

Luke A. MACDONALD 1, 2 , Phillip M. BELLINGER 1, Clare L. MINAHAN 1

1 Griffith University Sports Science, School of Allied Health Sciences, Griffith University, Gold Coast, Australia; 2 Centre of Excellence for Applied Sport Science Research, Queensland Academy of Sport, Department of National Parks, Sport and Racing, Level 1 Queensland Sport and Athletics Centre, Nathan, Australia


PDF  


BACKGROUND: The purpose of this study was to evaluate the inter-day reliability of the IPRO method for determining resting and postexercise salivary cortisol (sCort) and rate of salivary Immunoglobulin-A (sIgA) secretion.
METHODS: Fourteen males (32±11 years) performed two trials (T1 and T2) separated by 7 d, comprising saliva sampling before and 15 min after completion of two, 30-s Wingate Anaerobic Tests separated by 3.5 min (2 x WAnT). sCort increased after the 2 x WAnT in both trials (T1: P<0.001; T2: P<0.001), whereas rate of sIgA secretion decreased in both trials (T1: P=0.002; T2: P=0.002).
RESULTS: The intraclass correlation coefficients for resting and postexercise sCort and rate of sIgA secretion ranged from 0.96-0.99. Mean reliability, expressed as the coefficient of variation (%) and the typical error of measurement over the two trials were resting sCort 9.4%, 0.14 ng·mL-1 (9% CI: 0.1-0.2), postexercise sCort 11.9%, 0.44 ng·mL-1 (9% CI: 0.3-0.7), resting rate of sIgA secretion 7.4%, 85.5 µg·mL-1·min-1 (9% CI: 65.2-127.1) and postexercise rate of sIgA secretion 10.5%, 82.9 µg·mL-1·min-1 (9% CI: 63.2-123.1).
CONCLUSIONS: The IPRO is a reliable method for determining sCort and rate of sIgA secretion at rest and after sprint-cycling exercise.


KEY WORDS: Reproducibility of results - Exercise - Saliva - Hydrocortisone - Immunoglobulin-A

top of page

Publication History

Issue published online: October 20, 2017
Article first published online: November 16, 2016
Manuscript accepted: November 8, 2016
Manuscript revised: October 14, 2016
Manuscript received: June 21, 2016

Cite this article as

MacDonald LA, Bellinger PM, Minahan CL. Reliability of salivary cortisol and immunoglobulin-A measurements from the IPRO® before and after sprint cycling exercise. J Sports Med Phys Fitness 2017;57:1680-6. DOI: 10.23736/S0022-4707.16.06785-2

Corresponding author e-mail

luke.macdonald@griffithuni.edu.au