Bradford Factor and seasonal injury risk in Division I-A collegiate American footballers

Murray, A; Fullagar, HHK; Delaney, JA; Sampson, J

Bradford Factor and seasonal injury risk in Division I-A collegiate American footballers

Murray, A

Fullagar, HHK

Delaney, JA Sampson, J

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Publication Type:: Journal Article
Citation:: Science and Medicine in Football, 2018, 2 (3), pp. 173 - 176
Issue Date:: 2018-07-03

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Field	Value	Language
dc.contributor.author	Murray, A https://orcid.org/0000-0001-5014-1096	en_US
dc.contributor.author	Fullagar, HHK https://orcid.org/0000-0001-9426-5373	en_US
dc.contributor.author	Delaney, JA	en_US
dc.contributor.author	Sampson, J	en_US
dc.date.available	2020-05-25T19:06:30Z
dc.date.issued	2018-07-03	en_US
dc.identifier.citation	Science and Medicine in Football, 2018, 2 (3), pp. 173 - 176	en_US
dc.identifier.issn	2473-3938	en_US
dc.identifier.uri	http://hdl.handle.net/10453/132483
dc.description.abstract	© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group. Purpose: To investigate if participation in a higher percentage of preseason sessions affects the injury profile within Division I-A American Collegiate and whether the Bradford Factor (BF) is viable for practitioner use. Methods: A retrospective research design was used. Training load and injury data were collected and analysed for two collegiate American football seasons for 70 players. Results: A total of 184 injuries were sustained across two seasons with 106 resulting in time loss (15.6 ± 5.4 time loss injuries per 1000 h). On average, athletes completed 93 ± 17% of preseason sessions. For injury likelihood in the following week, an increase in accumulated minutes in 7d increased the injury risk by 35%. For non-contact time-loss injuries, preseason completion showed a reduction in injury likelihood of 2% for additional 3 sessions completed. A high BF in preseason (>7) increases the risk compared to a low BF through the in-season period. Conclusion: Preseason completion was not associated with a substantial reduction in injury risk in-season. A clear difference in BF between groups was evident and may provide a practical “flagging” variable. The BF may provide a simple but practically meaningful measure to monitor adaptation.	en_US
dc.relation.ispartof	Science and Medicine in Football	en_US
dc.relation.isbasedon	10.1080/24733938.2018.1452284	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Bradford Factor and seasonal injury risk in Division I-A collegiate American footballers	en_US
dc.type	Journal Article
utslib.citation.volume	3	en_US
utslib.citation.volume	2	en_US
utslib.for	1106 Human Movement and Sports Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Health
pubs.organisational-group	/University of Technology Sydney/Faculty of Health/Sports and Exercise Science
utslib.copyright.status	open_access	*
pubs.issue	3	en_US
pubs.publication-status	Published	en_US
pubs.volume	2	en_US

Abstract:

© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group. Purpose: To investigate if participation in a higher percentage of preseason sessions affects the injury profile within Division I-A American Collegiate and whether the Bradford Factor (BF) is viable for practitioner use. Methods: A retrospective research design was used. Training load and injury data were collected and analysed for two collegiate American football seasons for 70 players. Results: A total of 184 injuries were sustained across two seasons with 106 resulting in time loss (15.6 ± 5.4 time loss injuries per 1000 h). On average, athletes completed 93 ± 17% of preseason sessions. For injury likelihood in the following week, an increase in accumulated minutes in 7d increased the injury risk by 35%. For non-contact time-loss injuries, preseason completion showed a reduction in injury likelihood of 2% for additional 3 sessions completed. A high BF in preseason (>7) increases the risk compared to a low BF through the in-season period. Conclusion: Preseason completion was not associated with a substantial reduction in injury risk in-season. A clear difference in BF between groups was evident and may provide a practical “flagging” variable. The BF may provide a simple but practically meaningful measure to monitor adaptation.

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http://hdl.handle.net/10453/132483