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ARTICLES DE PERIODIQUES

First concussion did not increase the risk of subsequent concussion when patients were managed appropriately

Shrier, Ian ; Piché, Alexendre ; Steele, Russell J.
Br J Sports Med vol.53 n°7, p.389-390, April 2018

Some studies suggest that having a concussion during athletic activities increases the risk (as expressed through ?rate ratios?) of subsequent concussion,1 potentially because of incomplete recovery after brain trauma. However, these analyses are flawed for causal interpretation because participants with one concussion likely have different inherent risks compared with those with no concussions.2 The issue is clinically important because ...

  • Ex. 1 — Consultation sur place
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ARTICLES DE PERIODIQUES

Improving the accuracy of sports medicine surveillance : when is a subsequent event a new injury?

Shrier, Ian ; Clarsen, Ben ; Verhagen, Evert ; Gordon, Kerry ; Mellette, Jay
Br J Sports Med. vol.51 n°1, p.26-28, January 2017

The recent increased use of injury and illness surveillance programmes has the potential to greatly advance our knowledge about risk factors and treatment effectiveness. Maximising this potential requires that data be entered in a format that can be interpreted and analysed. One remaining challenge concerns whether and when an increase in symptoms should be documented within an existing injury record (eg, exacerbation) versus a new injury ...

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ARTICLES DE PERIODIQUES

Procedures for assessing psychological predictors of injuries in circus artists : a pilot perspective study

Shrier, Ian ; Raglin, John S. ; Levitan, Emily B. ; Mittleman, Murray A. ; Steele, Russell J. ; Powell, Janette W.
BMC Medical Research Methodology vol.14, p.1-10, June 2014

Background : Research on psychological risk factors for injury has focused on stable traits. Our objective was to test the feasibility of a prospective longitudinal study designed to examine labile psychological states as risk factors of injury.

Methods : We measured psychological traits at baseline (mood, ways of coping and anxiety), and psychological states every day (1-item questions on anxiety, sleep, fatigue, soreness, self-confidence) ...

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ARTICLES DE PERIODIQUES

Examining the effect of the injury definition on risk factor analysis in circus artists

Hamilton, Gavin ; Meeuwisse, Willem H. ; Emery, Carolyn ; Shrier, Ian
juin 2012


Cote : 617.102 7 H2171s 2012

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ARTICLES DE PERIODIQUES

Psychological predictors of injuries in circus artists : an exploratory study

Shrier, Ian ; Hallé, Madeleine
avril 2011

To explore the relationship between potential psychological risk factors and injury risk in circus artists.


Cote : 617.102 7 S5614p 2011

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ARTICLES DE PERIODIQUES

Subsequent injury definition, classification and consequence

Hamilton, Gavin ; Meeuwisse, Willem H. ; Emery, Carolyn ; Shrier, Ian
Novembre 2011


Cote : 617.102 7 H2171s 2011

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ARTICLES DE PERIODIQUES

Past injury as a risk factoe : an illustrative example where appearances are deceiving

Hamilton, Gavin ; Meeuwisse, Willem H. ; Emery, Carolyn ; Steele, Russell J. ; Shrier, Ian
American Journal of Epidemiology vol 173 n° 8, 2011-02-22

Previous injury is believed to be a causal risk factor for subsequent injury. Using empirical data on circus artists (n = 1,281 artists) between 2004 and 2008 in Montreal, Canada, as a motivating example, the authors use patient vector plots to demonstrate that a bias away from the null
must always occur in the typical analyses cited as evidence (i.e., survival analysis, Poisson regression), except in the improbable context where all subjects ...

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ARTICLES DE PERIODIQUES

The effect of rest days on injury rates

Orlando, C. ; Levitan, Emily B. ; Mittleman, Murray A. ; Steele, Russell J. ; Shrier, Ian
John Wiley & Sons , 2011

Despite the importance of recuperation, few have studied the impact of rest periods on injury prevention. We determined the effect of rest days (breaks) on injury rates and treatments using electronic injury records from an acrobatic circus company that employs former world-class athletes as acrobats. To account for accumulated fatigue, we considered breaks across SD3 (third consecutive week of 1-day rest) to SD6 as a single exposure level ...

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ARTICLES DE PERIODIQUES

Return-to-play decisions : are they the team physician’s responsibility?

Matheson, Gordon O. ; Shultz, Rebecca ; Bido, Jennifer ; Mitten, Matthew J. ; Meeuwisse, Willem H. ; Shrier, Ian
Clinical Journal of Sport Medicine, 2011

Objective: Return-to-play (RTP) decisions are a central component of the Team Physician’s clinical work, yet there is little more than anecdotal reference to these in the literature. We recently published a 3-step model for return-to-play medical decision making and, in the current paper, undertook a systematic review of the literature to determine the level of evidence in support of this model. [editor summary]

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