2020
DOI: 10.1136/bmjsem-2020-000740
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Exposure to impacts across a competitive rugby season impairs balance and neuromuscular function in female rugby athletes

Abstract: ObjectivesWe used objective assessment tools to detect subtle neurological deficits that accompany repetitive and mild head impacts in contact sport across a season.MethodsFemale participants (n=13, 21±1.8 years old; 167.6±6.7 cm; 72.8±6.1 kg) completed assessments pre and post the varsity rugby season. A commercial balance board was used to assess static balance and response to dynamic postural challenge. Spinal cord excitability via the soleus H-reflex was assessed in both legs. Video analysis was used to id… Show more

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Cited by 6 publications
(12 citation statements)
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References 41 publications
(49 reference statements)
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“…Although only one variable in the present study showed statistical significance, a few particularities must be considered. The BESS protocol is widely performed by clinicians, 15 recommended by specialists, 1 and it can provide useful information on the effects of subconcussions even in such a fundamental posture for humans (ie, double‐leg stance) when integrated with a portable and low‐cost balance board 19 . Moreover, our static protocol was composed by a single‐task, whereas other studies detected similar outcomes only when performing double‐task protocols, 37,38 which is believed to exacerbate stability deficits 39 .…”
Section: Discussionmentioning
confidence: 99%
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“…Although only one variable in the present study showed statistical significance, a few particularities must be considered. The BESS protocol is widely performed by clinicians, 15 recommended by specialists, 1 and it can provide useful information on the effects of subconcussions even in such a fundamental posture for humans (ie, double‐leg stance) when integrated with a portable and low‐cost balance board 19 . Moreover, our static protocol was composed by a single‐task, whereas other studies detected similar outcomes only when performing double‐task protocols, 37,38 which is believed to exacerbate stability deficits 39 .…”
Section: Discussionmentioning
confidence: 99%
“…Participants were instructed to shift their weight on the BB so that the CoP meets the target on the screen as quickly and accurately as possible. Following the familiarization set, participants completed five trials 19,33 . The averaged time to reach target (tTarget), time to return to center from target (tCenter), and their computed sum (tTotal) were obtained and analyzed 19,33 …”
Section: Methodsmentioning
confidence: 99%
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“…A commercially available balance board (Wii Balance Board, Nintendo, Kyoto, Japan) was used with customized software (LabVIEW 2011 National Instruments, Austin, TX, USA), and data were sampled at 100 Hz. The validity (r = 0.99) and reliability (ICC = 0.88) of balance board has been con rmed [35] and used in several previous studies to assess postural control [33,36,37].…”
Section: Balance Assessmentmentioning
confidence: 99%