Subjective wellness, acute: Chronic workloads, and injury risk in college football

Sampson, JA; Murray, A; Williams, S; Sullivan, A; Fullagar, HHK

Subjective wellness, acute: Chronic workloads, and injury risk in college football

Sampson, JA Murray, A Williams, S Sullivan, A Fullagar, HHK

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Publication Type:: Journal Article
Citation:: Journal of Strength and Conditioning Research, 2019, 33 (12), pp. 3367 - 3373
Issue Date:: 2019-01-01

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Field	Value	Language
dc.contributor.author	Sampson, JA	en_US
dc.contributor.author	Murray, A	en_US
dc.contributor.author	Williams, S	en_US
dc.contributor.author	Sullivan, A	en_US
dc.contributor.author	Fullagar, HHK https://orcid.org/0000-0001-9426-5373	en_US
dc.date.available	2020-05-25T19:07:36Z
dc.date.issued	2019-01-01	en_US
dc.identifier.citation	Journal of Strength and Conditioning Research, 2019, 33 (12), pp. 3367 - 3373	en_US
dc.identifier.issn	1064-8011	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133910
dc.description.abstract	© 2019 National Strength and Conditioning Association Sampson, JA, Murray, A, Williams, S, Sullivan, A, and Fullagar, HHK. Subjective wellness, acute: chronic workloads and injury risk in college football. J Strength Cond Res 33(12): 3367-3373, 2019-Acute:chronic workload ratios (ACWRs) are associated with injury risk across team sports. In this study, one season of workload and wellness data from 42 collegiate football players were retrospectively analyzed. Daily 7:21 day exponentially weighted moving average (EWMA) ACWRs were calculated, and z-score fluctuations (“normal,” “better,” and “worse”) in sleep, soreness, energy, and overall wellness were assessed relative to the previous day ACWRs and considered as an interactive effect on the risk of noncontact injury within 0-3 days. Fifty-five noncontact injuries were observed, and injury risks were very likely higher when ACWRs were 2 SDs above (relative risk [RR]: 3.05, 90% confidence interval [CI]: 1.14-8.16) and below (RR: 2.49, 90% CI: 1.11-5.58) the mean. A high ACWR was trivially associated (p, 0.05) with “worse” wellness (r = 20.06, CI: 20.10 to 20.02), muscle soreness (r = 20.07, CI: 20.11 to 20.03), and energy (r = 20.05, CI: 20.09 to 20.01). Feelings of “better” overall wellness and muscle soreness with collectively high EWMA ACWRs displayed likely higher injury risks compared with “normal” (RR: 1.52, 90% CI: 0.91 to 2.54; RR: 1.64, 90% CI: 1.10-2.47) and likely or very likely (RR: 2.36, 90% CI: 0.83 to 674; RR: 2.78, 90% CI: 1.21-6.38) compared with “worse” wellness and soreness, respectively. High EWMA ACWRs increased injury risk and negatively impacted wellness. However, athletes reporting “better” wellness, driven by “better” muscle soreness presented with the highest injury risk when high EWMA ACWRs were observed. This suggests that practitioners are responsive to, and/or athletes are able to self-modulate workload activities.	en_US
dc.relation.ispartof	Journal of Strength and Conditioning Research	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Sport Sciences	en_US
dc.subject.mesh	Athletic Injuries	en_US
dc.subject.mesh	Fatigue	en_US
dc.subject.mesh	Football	en_US
dc.subject.mesh	Health Status	en_US
dc.subject.mesh	Humans	en_US
dc.subject.mesh	Male	en_US
dc.subject.mesh	Myalgia	en_US
dc.subject.mesh	Retrospective Studies	en_US
dc.subject.mesh	Risk Factors	en_US
dc.subject.mesh	Sleep	en_US
dc.subject.mesh	Universities	en_US
dc.subject.mesh	Workload	en_US
dc.subject.mesh	Young Adult	en_US
dc.title	Subjective wellness, acute: Chronic workloads, and injury risk in college football	en_US
dc.type	Journal Article
utslib.citation.volume	12	en_US
utslib.citation.volume	33	en_US
utslib.for	1106 Human Movement and Sports Sciences	en_US
utslib.for	1116 Medical Physiology	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	12	en_US
pubs.publication-status	Published	en_US
pubs.volume	33	en_US

Abstract:

© 2019 National Strength and Conditioning Association Sampson, JA, Murray, A, Williams, S, Sullivan, A, and Fullagar, HHK. Subjective wellness, acute: chronic workloads and injury risk in college football. J Strength Cond Res 33(12): 3367-3373, 2019-Acute:chronic workload ratios (ACWRs) are associated with injury risk across team sports. In this study, one season of workload and wellness data from 42 collegiate football players were retrospectively analyzed. Daily 7:21 day exponentially weighted moving average (EWMA) ACWRs were calculated, and z-score fluctuations (“normal,” “better,” and “worse”) in sleep, soreness, energy, and overall wellness were assessed relative to the previous day ACWRs and considered as an interactive effect on the risk of noncontact injury within 0-3 days. Fifty-five noncontact injuries were observed, and injury risks were very likely higher when ACWRs were 2 SDs above (relative risk [RR]: 3.05, 90% confidence interval [CI]: 1.14-8.16) and below (RR: 2.49, 90% CI: 1.11-5.58) the mean. A high ACWR was trivially associated (p, 0.05) with “worse” wellness (r = 20.06, CI: 20.10 to 20.02), muscle soreness (r = 20.07, CI: 20.11 to 20.03), and energy (r = 20.05, CI: 20.09 to 20.01). Feelings of “better” overall wellness and muscle soreness with collectively high EWMA ACWRs displayed likely higher injury risks compared with “normal” (RR: 1.52, 90% CI: 0.91 to 2.54; RR: 1.64, 90% CI: 1.10-2.47) and likely or very likely (RR: 2.36, 90% CI: 0.83 to 674; RR: 2.78, 90% CI: 1.21-6.38) compared with “worse” wellness and soreness, respectively. High EWMA ACWRs increased injury risk and negatively impacted wellness. However, athletes reporting “better” wellness, driven by “better” muscle soreness presented with the highest injury risk when high EWMA ACWRs were observed. This suggests that practitioners are responsive to, and/or athletes are able to self-modulate workload activities.

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http://hdl.handle.net/10453/133910