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Balasundaram AP, Athens J, Schneiders AG, McCrory P, Sullivan SJ. Scand. J. Med. Sci. Sports 2017; 27(12): 2002-2008.


Center for Health, Activity and Rehabilitation Research, School of Physiotherapy, University of Otago, Dunedin, New Zealand.


(Copyright © 2017, John Wiley and Sons)






The purpose of this study were; 1) To determine the reliable change in post concussion-like symptoms reported following self-selected exercise or sports activities. 2) To explore the potential influence of gender and exercise parameters on post concussion-like symptoms reported by a non-concussed cohort following exercise/training. A pre-post observational design was used. A convenience sample of students aged 18-30 years who visited a university recreation centre to engage in their chosen exercise activity, and a purposeful sample of men's and women's rugby union players engaged in their regular training sessions. All participants reported their symptoms using the SCAT2 post-concussion symptom scale, and exercise variables such as type, duration, volume and intensity were collected pre and post-exercise. The reliable change index was used to determine the change in symptom scores reported from pre-to-post-exercise/training. Multiple linear regression analysis was used to model the exercise variables to explain the impact on the reporting of symptoms. A total of 260 participants (146 males and 114 females) completed their self-selected exercise activity or rugby union training. Approximately two-thirds of all participants did not demonstrate a change (increase or decrease) in total symptom score (201/260, 77.9%) and/or symptom severity score (212/260, 81.9%) from pre to post-exercise/training. The symptom response following exercise or sports training did not change in the majority of participants. Clinicians need to be aware of these findings in order to make informed decisions on return-to-play following a concussive brain injury. This article is protected by copyright. All rights reserved.

This article is protected by copyright. All rights reserved.

Language: en


Real-World Context; Reliable Change Index; Return-to-Play; Rugby Union; Sport-related concussion; Training


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