Slowing in peak-alpha frequency recorded after experimentally-induced muscle pain is not significantly different between high and low pain-sensitive subjects

De Martino, Enrico, Gregoret, Luisina, Zandalasini, Matteo and Graven-Nielsen, Thomas (2021) Slowing in peak-alpha frequency recorded after experimentally-induced muscle pain is not significantly different between high and low pain-sensitive subjects. The Journal of Pain. ISSN 1526-5900 (In Press)

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Official URL: https://doi.org/10.1016/j.jpain.2021.06.004

Abstract

Peak alpha frequency (PAF) reduces during cutaneous pain, but no studies have investigated PAF during movement-related muscle pain. Whether high-pain sensitive (HPS) individuals exhibit a more pronounced PAF response to pain than low-pain sensitive (LPS) individuals is unclear. As a pain model, twenty-four participants received nerve growth factor injections into a wrist extensor muscle at Day0, Day2, and Day4. At Day4, a subgroup of twelve participants also undertook eccentric wrist exercise to induce additional pain. Pain numerical rating scale (NRS) scores and electroencephalography were recorded at Day0 (before injection), Day4, and Day6 for 3 minutes (eyes closed) with wrist at rest (Resting-state) and extension (Contraction-state). The average pain NRS scores in contraction-state across Days were used to divide participants into HPS (NRS-scores≥2) and LPS groups. PAF was calculated by frequency decomposition of electroencephalographic recordings. Compared with Day0, contraction NRS-scores only increased in HPS-group at Day4 and Day6 (P

Item Type: Article
Additional Information: Funding information: Center for Neuroplasticity and Pain (CNAP) is supported by the Danish National Research Foundation (DNRF121).
Uncontrolled Keywords: muscle soreness, electroencephalography, oscillations, nerve-growth factor, Prolonged hyperalgesia
Subjects: B100 Anatomy, Physiology and Pathology
B900 Others in Subjects allied to Medicine
C100 Biology
C600 Sports Science
Department: Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Rachel Branson
Date Deposited: 01 Jul 2021 08:18
Last Modified: 04 Aug 2021 16:54
URI: http://nrl.northumbria.ac.uk/id/eprint/46572

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