Skip to main content

Research Repository

Advanced Search

Neurovascular Coupling by Functional Near Infra-Red Spectroscopy and Sport-Related Concussion in Retired Rugby Players: The UK Rugby Health Project

Sharma, A.; Hind, K.; Hume, P.; Singh, J.; Neary, P.

Neurovascular Coupling by Functional Near Infra-Red Spectroscopy and Sport-Related Concussion in Retired Rugby Players: The UK Rugby Health Project Thumbnail


Authors

A. Sharma

K. Hind

P. Hume

J. Singh

P. Neary



Abstract

Aim: This study investigated haemodynamic responses to a neurovascular coupling test in retired contact athletes with a history of repeated mild traumatic brain injury (mTBI) and in controls with no history of mTBI. Methods: 21 retired rugby players (47.7 ± 12.9 yr old; age at retirement: 38.5 ± 8.9 yr) with a history of 3 or more diagnosed concussions (8.9 ± 7.9 concussions per player) and 23 controls with no history of mTBI (46.5 ± 12.8 yr old) performed a neurovascular coupling test to detect task orientated haemodynamic changes using functional near-infrared spectroscopy (fNIRS). Results: The neurovascular coupling showed a significant diminished haemodynamic response in comparison to the control group which had a greater relative increase of oxyhaemoglobin (O2Hb). There were reductions in left middle frontal gyrus O2Hb and increases in deoxyhaemoglobin (HHb) in the same region for the mTBI group. These results suggest altered cerebral metabolic demands in participants with a history of multiple head injuries. The mTBI group induced a greater rate of oxygen extraction compared to the control group. Conclusion: This was the first study to examine haemodynamic changes in retired rugby players in response to a neurovascular coupling test and we found reduced cerebral haemodynamic responses in participants with a history of mTBI compared to controls. Further research is needed to ascertain an understanding of the changes in haemodynamics from playing, into retirement.

Citation

Sharma, A., Hind, K., Hume, P., Singh, J., & Neary, P. (2020). Neurovascular Coupling by Functional Near Infra-Red Spectroscopy and Sport-Related Concussion in Retired Rugby Players: The UK Rugby Health Project. Frontiers in Human Neuroscience, 14, Article 42. https://doi.org/10.3389/fnhum.2020.00042

Journal Article Type Article
Acceptance Date Jan 27, 2020
Online Publication Date Feb 13, 2020
Publication Date Feb 13, 2020
Deposit Date Jan 31, 2020
Publicly Available Date Feb 13, 2020
Journal Frontiers in Human Neuroscience
Publisher Frontiers Media
Peer Reviewed Peer Reviewed
Volume 14
Article Number 42
DOI https://doi.org/10.3389/fnhum.2020.00042

Files

Published Journal Article (1.3 Mb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
Copyright: © 2020 Sharma, Hind, Hume, Singh and Neary. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.





You might also like



Downloadable Citations