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Mitchell C, Cronin J. The variability of dual-task walking parameters using in-shoe inertial sensors in nonconcussed individuals: A randomized within-subject repeated measures design. Health Sci Rep 2023; 6:e1660. [PMID: 37900093 PMCID: PMC10600336 DOI: 10.1002/hsr2.1660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 10/08/2023] [Accepted: 10/11/2023] [Indexed: 10/31/2023] Open
Abstract
Background and Aims There is a need for high utility and portability, and cost-effective technologies that are suitable for assessing dual-task gait after experiencing a concussion. Current technologies utilized such as 3D motion capture and force plates are too complex and expensive for most practitioners. The aim of this study was to quantify the variability of dual-task walking gait parameters using in-shoe inertial sensors in nonconcussed individuals. Methods This was a randomized within-subject repeated measures design conducted within a sports laboratory. Twenty healthy, uninjured, nonconcussed participants were recruited for this study. Gait variables of interest were measured across three 2-min continuous walking protocols (12 m, 30 m, 1 min out and back) while performing a cognitive task of counting backward in sevens from a randomly generated number between 300 and 500. Testing was completed over three occasions separated by 7 days, for a total of nine walking trials. Participants completed the testing protocols in a randomized, individual order. The primary outcome was to determine the variability of dual-task walking gait parameters using in-shoe inertial sensors in nonconcussed individuals across three protocols. Results Three to four participants were allocated to each randomized protocol order. Regarding the absolute consistency (coefficient of variation [CV]) between testing occasions, no gait measure was found to have variability above 6.5%. Relative consistency (intraclass correlation coefficient [ICC]) was acceptable (>0.70) in 95% of the variables of interest, with only three variables < 0.70. Similar variability was found across the three testing protocols. Conclusion In-shoe inertial sensors provide a viable option for monitoring gait parameters. This technology is also reliable across different testing distances, thus offering various testing options for practitioners. Further research needs to be conducted to examine the variability with concussed subjects.
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Affiliation(s)
- Courtney Mitchell
- Sport Performance Research in New Zealand (SPRINZ)AUT Millennium Institute, AUT UniversityAucklandNew Zealand
- Department of Sport and RecreationToi Ohomai Institute of TechnologyTaurangaNew Zealand
| | - John Cronin
- Sport Performance Research in New Zealand (SPRINZ)AUT Millennium Institute, AUT UniversityAucklandNew Zealand
- Athlete Training and HealthKatyTexasUSA
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Mitchell CJ, Cronin J. Methodological Critique of Concussive and Non-Concussive Dual Task Walking Assessments: A Scoping Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5227. [PMID: 36982135 PMCID: PMC10048786 DOI: 10.3390/ijerph20065227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVE To understand the methodological approaches taken by various research groups and determine the kinematic variables that could consistently and reliably differentiate between concussed and non-concussed individuals. METHODS MEDLINE via PubMed, CINAHL Complete via EBSCO, EBSCOhost, SPORTDiscus, and Scopus were searched from inception until 31 December 2021, using key terms related to concussion, mild traumatic brain injury, gait, cognition and dual task. Studies that reported spatiotemporal kinematic outcomes were included. Data were extracted using a customised spreadsheet, including detailed information on participant characteristics, assessment protocols, equipment used, and outcomes. RESULTS Twenty-three studies involving 1030 participants met the inclusion criteria. Ten outcome measures were reported across these articles. Some metrics such as gait velocity and stride length may be promising but are limited by the status of the current research; the majority of the reported variables were not sensitive enough across technologies to consistently differentiate between concussed and non-concussed individuals. Understanding variable sensitivity was made more difficult given the absence of any reporting of reliability of the protocols and variables in the respective studies. CONCLUSION Given the current status of the literature and the methodologies reviewed, there would seem little consensus on which gait parameters are best to determine return to play readiness after concussion. There is potential in this area for such technologies and protocols to be utilised as a tool for identifying and monitoring concussion; however, improving understanding of the variability and validity of technologies and protocols underpins the suggested directions of future research. Inertial measurement units appear to be the most promising technology in this aspect and should guide the focus of future research. IMPACT Results of this study may have an impact on what technology is chosen and may be utilised to assist with concussion diagnosis and return to play protocols.
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Affiliation(s)
- Courtney Jade Mitchell
- Sport Performance Research in New Zealand (SPRINZ), AUT Millennium Institute, AUT University, Auckland 1010, New Zealand
- Department of Sport and Recreation, Toi Ohomai Institute of Technology, Tauranga 3112, New Zealand
| | - John Cronin
- Sport Performance Research in New Zealand (SPRINZ), AUT Millennium Institute, AUT University, Auckland 1010, New Zealand
- Athlete Training and Health, 23910 Katy Freeway, Suite 101, Katy, TX 77494, USA
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3
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Sokol-Randell D, Rotundo MP, Tierney G, Cusimano MD, Deasy C. Video analysis of potential concussions in elite male Hurling: are players being assessed according to league guidelines? Ir J Med Sci 2021; 191:2335-2342. [PMID: 34664223 PMCID: PMC8523202 DOI: 10.1007/s11845-021-02798-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/28/2021] [Indexed: 12/04/2022]
Abstract
Background Hurling is a fast-paced contact sport that places players at risk of concussion. Given the consequences of repeated concussive impacts, it is imperative that concussion management guidelines are followed. Hypothesis/Purpose. The aim of this study is to determine if potential concussive events (PCEs) in elite Hurling are assessed in accordance with league management guidelines. The secondary objective is to investigate the effectiveness of current concussion training programs. Methods Investigators used a video analysis approach to identify PCEs throughout the 2018 and 2019 inter-county Hurling seasons and championships. Subsequent assessment, return to play (RTP) decision, and signs of concussion were evaluated based on previously validated methods. The results were then compared year-over-year with previous research in Gaelic Football (GF). Results A total of 183 PCEs were identified over 82 matches. PCEs were frequently assessed (86.3%, n = 158) by medical personnel. The majority of assessments were less than 1 min in duration (81.0%, n = 128). Thirteen (7.1%) players were removed following a PCE. There were 43 (23.5%) PCEs that resulted in one or more signs of concussion, of which 10 (23.3%) were removed from play. There was no difference in rate of assessment, duration of assessment, or rate of RTP between 2018 and 2019 in both Hurling and GF, suggesting that current concussion training programs have had limited success. Conclusion In Hurling, players suspected of having sustained a concussion are frequently subject to a brief assessment, and are rarely removed from play. Affirmative action is needed to ensure the consistent application of standardized concussion assessment across the Gaelic Games.
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Affiliation(s)
- Darek Sokol-Randell
- School of Medicine, University College Cork, Cork, Ireland. .,Emergency Innovation Research Network, Cork, Ireland.
| | - Mario Pasquale Rotundo
- School of Medicine, University College Cork, Cork, Ireland.,Emergency Innovation Research Network, Cork, Ireland
| | - Gregory Tierney
- School of Biomedical Sciences, University of Leeds, Leeds, UK
| | - Michael D Cusimano
- Division of Neurosurgery, St. Michael's Hospital, University of Toronto, Toronto, Canada
| | - Conor Deasy
- School of Medicine, University College Cork, Cork, Ireland.,Emergency Innovation Research Network, Cork, Ireland.,Emergency Department, Cork University Hospital, Cork, Ireland
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Baugh CM, Kerr ZY, Kroshus E, Lanser BL, Lindley TR, Meehan WP. Sports Medicine Staffing Patterns and Incidence of Injury in Collegiate Men's Ice Hockey. J Athl Train 2020; 55:587-593. [PMID: 32383984 DOI: 10.4085/1062-6050-0464.19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
CONTEXT The relative availability of clinicians as well as the types and training of health care providers have been associated with morbidity and mortality in non-athletic health care settings. Whether staffing variations are associated with injury incidence in collegiate athletes is unknown. OBJECTIVE To evaluate whether the institutional ratio of athletes to athletic trainers (patient load) or the ratio of staff to nonstaff (graduate assistant and certified intern) athletic trainers or both is associated with the incidence of injuries sustained by male ice hockey athletes at the school. DESIGN Descriptive epidemiology study. SETTING National Collegiate Athletic Association (NCAA) men's ice hockey teams. PATIENTS OR OTHER PARTICIPANTS Collegiate men's ice hockey athletes. MAIN OUTCOME MEASURE(S) The NCAA Injury Surveillance Program collected data from collegiate men's ice hockey athletes. Staffing patterns were obtained through telephone interviews. Injury counts, injury rates per 1000 athlete-exposures, and injury rate ratios with 95% confidence intervals were calculated and compared between the following groups: (1) schools with high (versus low) patient load and (2) schools with high (versus low) ratio of staff to nonstaff (graduate assistant and certified intern) athletic trainers. RESULTS Both the patient load and relative number of staff athletic trainers were associated with variations in the incidences and types of diagnosed injuries in male ice hockey players. Specifically, fewer injuries were diagnosed by clinicians at institutions with high patient loads. The rates of injury overall and non-time-loss injuries were lower in the high patient-load group. Time-loss injury rates, severe injury rates, concussion rates, and overall rates of injury during competition were greater in the group with a higher proportion of staff athletic trainers, whereas non-time-loss injury rates were lower. CONCLUSIONS In this study of collegiate men's ice hockey players, athlete health outcomes were directly related to the number and types of clinicians available. Future researchers should evaluate whether this finding extends beyond men's ice hockey.
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Affiliation(s)
- Christine M Baugh
- Interfaculty Initiative in Health Policy, Harvard University, Boston, MA.,Dr Baugh is now at the Center for Bioethics and Humanities, School of Medicine, Department of Medicine, Division of General Internal Medicine, University of Colorado, Aurora
| | - Zachary Y Kerr
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill
| | - Emily Kroshus
- Department of Pediatrics, University of Washington, Seattle; Seattle Children's Research Institute, Center for Child Health, Behavior and Development
| | | | - Tory R Lindley
- Intercollegiate Sports Medicine, Northwestern University, Evanston, IL
| | - William P Meehan
- Division of Sports Medicine, Sports Concussion Clinic, Boston Children's Hospital, MA
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Anesthetic Care for the Post-concussive Patient: There Are More Questions Than Answers. CURRENT ANESTHESIOLOGY REPORTS 2020. [DOI: 10.1007/s40140-020-00365-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tarzi C, Aubrey J, Rotundo M, Armstrong N, Saha A, Cusimano MD. Professional assessment of potential concussions in elite football tournaments. Inj Prev 2020; 26:536-539. [PMID: 31941757 PMCID: PMC7691812 DOI: 10.1136/injuryprev-2019-043397] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/21/2019] [Accepted: 10/30/2019] [Indexed: 11/19/2022]
Abstract
Background Potential concussive events (PCEs) are a major health concern in football. Though there are protocols set in place for assessments of PCEs, there has been no evidence of adherence in major football tournaments. Methods Our research goal is to determine if PCEs in elite football are professionally assessed according to the International Conference on Concussion in Sport (ICCS) consensus statement recommendations. Identification and analysis of PCEs in the 2018 World Cup (WC) were accomplished through standardised observation of video footage by trained observers. Results were contrasted with data from the 2014 WC and 2016 Euro Cup. Our primary outcomes include frequency and professional assessment of PCEs, signs of concussions and time stopped for assessments. Findings In the 64 games of the 2018 WC, 87 PCEs (1.36 per game) were identified. Thirty-one (35.6%) PCEs were professionally assessed, resulting in the removal of three (3.5%) players from the match. Six (6.9%) PCEs showed one sign of concussion, 60 (69.0%) showed two signs, 20 (23.0%) showed three signs and 1 (1.2%) showed four or more signs. The mean time stopped for assessment was 63.3 s. No significant change in the percentage of professional assessments (mean=33.4%, 95% CI 20.7% to 46.1%) were identified across tournaments (p=0.42). Interpretation These findings demonstrate a need for adherence to concussion protocols in order to improve the brain-health of athletes. Proper enforcement of the ICCS protocols during these tournaments and promoting player health and safety can influence the officiating, coaching and playing of football worldwide by promoting player safety.
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Affiliation(s)
- Christopher Tarzi
- Neurosurgery, St. Michael's Hospital, Toronto, Ontario, Canada.,Injury Prevention Research Office, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Jason Aubrey
- Neurosurgery, St. Michael's Hospital, Toronto, Ontario, Canada.,Injury Prevention Research Office, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Mario Rotundo
- Neurosurgery, St. Michael's Hospital, Toronto, Ontario, Canada.,Injury Prevention Research Office, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Nicholas Armstrong
- Neurosurgery, St. Michael's Hospital, Toronto, Ontario, Canada.,Injury Prevention Research Office, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Ashirbani Saha
- Injury Prevention Research Office, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Michael D Cusimano
- Neurosurgery, St. Michael's Hospital, Toronto, Ontario, Canada .,Injury Prevention Research Office, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Surgery, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
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Baugh CM, Meehan WP, Kroshus E, McGuire TG, Hatfield LA. College Football Players Less Likely to Report Concussions and Other Injuries with Increased Injury Accumulation. J Neurotrauma 2019; 36:2065-2072. [PMID: 30688141 DOI: 10.1089/neu.2018.6161] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Athletes sometimes choose not to report suspected concussions, risking delays in treatment and health consequences. How and why do athletes make these reporting decisions? Using original survey data from a cohort of college football players, we evaluate two assumptions of the current literature on injury reporting: first, that the probability of reporting a concussion or injury is constant over time; second, that athletes make reasoned deliberative decisions about whether to report their concussion or other injury. We find that athletes are much less likely to report a concussion to a medical professional than they are to report another injury (47% vs. 80%), but no association between reporting and a measure of athletes' ability to switch from fast, reactive thinking to reasoned, deliberative thinking. The likelihood of reporting decreases as the number of injuries and concussions increases, and no athlete reported more than four concussions. Sports medicine clinicians sometimes use four concussions as a time to discuss possibly curtailing sports participation, which may influence athletes' subsequent reporting behavior. Sports medicine clinicians may want to consider athlete injury history as a risk factor for concussion and injury under-reporting.
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Affiliation(s)
- Christine M Baugh
- 1 Department of Health Care Policy, Harvard Medical School, Department of Health Care Policy, Boston, Massachusetts
| | - William P Meehan
- 2 Department of Sports Medicine, Sports Concussion Clinic, Boston Children's Hospital, Boston, Massachusetts
| | - Emily Kroshus
- 3 Department of Pediatrics University of Washington, Seattle, Washington.,4 Center for Child Health, Behavior and Development, Settle Children's Research Institute, Seattle, Washington
| | - Thomas G McGuire
- 1 Department of Health Care Policy, Harvard Medical School, Department of Health Care Policy, Boston, Massachusetts
| | - Laura A Hatfield
- 1 Department of Health Care Policy, Harvard Medical School, Department of Health Care Policy, Boston, Massachusetts
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Luyet FM, Feldman KW, Knox BL. The Big Black Brain: Subdural Hemorrhage with Hemispheric Swelling and Low Attenuation. JOURNAL OF CHILD & ADOLESCENT TRAUMA 2018; 11:241-247. [PMID: 32318153 PMCID: PMC7163906 DOI: 10.1007/s40653-017-0132-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The term "Big Black Brain" was first coined in 1993 to describe cases of abusive head trauma associated with subdural hematoma(s), brain swelling, and uni- or bilateral hypo-density involving the entire supratentorial compartment on CT scan imaging. This constellation of findings was invariably followed by extensive cerebral parenchymal destruction and a dismal neurological outcome or death. We describe two such cases and review the pathophysiology and differential diagnosis of this entity.
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Affiliation(s)
- Francois M. Luyet
- Department of Pediatrics, University of Wisconsin American Family Children’s Hospital, 600 Highland Ave, H4/428 Clinical Science Center, Madison, WI 53792-4108 USA
| | - Kenneth W. Feldman
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA USA
| | - Barbara L. Knox
- Department of Pediatrics, University of Wisconsin American Family Children’s Hospital, 600 Highland Ave, H4/428 Clinical Science Center, Madison, WI 53792-4108 USA
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Rao V, Syeda A, Roy D, Peters ME, Vaishnavi S. Neuropsychiatric aspects of concussion: acute and chronic sequelae. ACTA ACUST UNITED AC 2017; 2:CNC29. [PMID: 30202570 PMCID: PMC6094361 DOI: 10.2217/cnc-2016-0018] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/16/2016] [Indexed: 01/05/2023]
Abstract
Concussion – also known as mild traumatic brain injury – is a transient disturbance of neurological function resulting from traumatic forces imparted to the brain that often produce cognitive, behavioral and systemic symptoms. In this review of the literature, we discuss the pathophysiology of both acute and chronic neuropsychiatric sequelae of concussions, followed by a brief overview of evaluation and management of these sequelae.
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Affiliation(s)
- Vani Rao
- Department Of Psychiatry, Johns Hopkins University & School of Medicine, 5300 Alpha Commons Drive, Baltimore, MD, USA.,Department Of Psychiatry, Johns Hopkins University & School of Medicine, 5300 Alpha Commons Drive, Baltimore, MD, USA
| | - Arshiya Syeda
- Department Of Psychiatry, Johns Hopkins University & School of Medicine, 5300 Alpha Commons Drive, Baltimore, MD, USA.,Department Of Psychiatry, Johns Hopkins University & School of Medicine, 5300 Alpha Commons Drive, Baltimore, MD, USA
| | - Durga Roy
- Department Of Psychiatry, Johns Hopkins University & School of Medicine, 5300 Alpha Commons Drive, Baltimore, MD, USA.,Department Of Psychiatry, Johns Hopkins University & School of Medicine, 5300 Alpha Commons Drive, Baltimore, MD, USA
| | - Matthew E Peters
- Department Of Psychiatry, Johns Hopkins University & School of Medicine, 5300 Alpha Commons Drive, Baltimore, MD, USA.,Department Of Psychiatry, Johns Hopkins University & School of Medicine, 5300 Alpha Commons Drive, Baltimore, MD, USA
| | - Sandeep Vaishnavi
- The Preston Robert Tisch Brain Tumor Center, Duke Medicine; Department of Psychiatry & Behavioral Sciences & Community & Family Medicine, Duke University Medical Center, Durham, NC, USA; The Neuropsychiatric Clinic at Carolina Partners, Raleigh, NC, USA.,The Preston Robert Tisch Brain Tumor Center, Duke Medicine; Department of Psychiatry & Behavioral Sciences & Community & Family Medicine, Duke University Medical Center, Durham, NC, USA; The Neuropsychiatric Clinic at Carolina Partners, Raleigh, NC, USA
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Zusman EE, Zopfi P, Kuluva J, Zuckerman S. Can Ideas From United States Youth Sports Reduce Judo-Related Head Injuries in Japan? World Neurosurg 2017; 97:725-727. [DOI: 10.1016/j.wneu.2016.05.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 05/31/2016] [Indexed: 11/28/2022]
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