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Wahlquist VE, Glutting JJ, Kaminski TW. Examining the influence of the Get aHEAD Safely in Soccer™ program on head impact kinematics and neck strength in female youth soccer players. Res Sports Med 2024; 32:17-27. [PMID: 35611394 DOI: 10.1080/15438627.2022.2079982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 04/28/2022] [Indexed: 10/18/2022]
Abstract
The objective was to examine the efficacy of the Get aHEAD Safely in Soccer™ intervention on head impact kinematics and neck strength in female youth soccer players. The control group (CG) consisted of 13 players (age: 11.0 ± 0.4 yrs), while the experimental group (EG) consisted of 14 players (age: 10.6 ± 0.5 yrs). Head impact kinematics included peak linear acceleration (PLA), peak rotational acceleration (PRA), and peak rotational velocity (PRV). Pre- and post-season measures included strength measures of neck/torso flexion (NF/TF) and extension (NE/TE). Data were analysed using a multilevel linear model and ANOVA techniques. No differences in PLA, PRA, or PRV were observed between groups. The EG showed significant improvement in NF strength while the CG showed significant improvement in NE strength. Both groups significantly improved in TF pre- to post-season. The foundational strength components of the Get aHEAD Safely in Soccer program appear to show a benefit in youth soccer players beginning to learn the skill of purposeful heading.
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Affiliation(s)
| | | | - Thomas W Kaminski
- Athletic Training Research Laboratory, University of Delaware, Newark, DE, USA
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Bertocci G, Smalley C, Brown N, Dsouza R, Hilt B, Thompson A, Bertocci K, McKinsey K, Cory D, Pierce MC. Head biomechanics of video recorded falls involving children in a childcare setting. Sci Rep 2022; 12:8617. [PMID: 35597795 PMCID: PMC9124183 DOI: 10.1038/s41598-022-12489-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/11/2022] [Indexed: 12/04/2022] Open
Abstract
The objective of this study was to characterize head biomechanics of video-recorded falls involving young children in a licensed childcare setting. Children 12 to < 36 months of age were observed using video monitoring during daily activities in a childcare setting (in classrooms and outdoor playground) to capture fall events. Sensors (SIM G) incorporated into headbands worn by the children were used to obtain head accelerations and velocities during falls. The SIM G device was activated when linear acceleration was ≥ 12 g. 174 video-recorded falls activated the SIM G device; these falls involved 31 children (mean age = 21.6 months ± 5.6 SD). Fall heights ranged from 0.1 to 1.2 m. Across falls, max linear head acceleration was 50.2 g, max rotational head acceleration was 5388 rad/s2, max linear head velocity was 3.8 m/s and max rotational head velocity was 21.6 rad/s. Falls with head impact had significantly higher biomechanical measures. There was no correlation between head acceleration and fall height. No serious injuries resulted from falls—only 1 child had a minor injury. In conclusion, wearable sensors enabled characterization of head biomechanics during video-recorded falls involving young children in a childcare setting. Falls in this setting did not result in serious injury.
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Affiliation(s)
- Gina Bertocci
- Department of Bioengineering, University of Louisville, Louisville, KY, USA.
| | - Craig Smalley
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Nathan Brown
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Raymond Dsouza
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Bret Hilt
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Angela Thompson
- Engineering Fundamentals Department, University of Louisville, Louisville, KY, USA
| | - Karen Bertocci
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Keyonna McKinsey
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Danielle Cory
- Department of Bioengineering, University of Louisville, Louisville, KY, USA
| | - Mary Clyde Pierce
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.,Division of Emergency Medicine, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, USA
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Huber CM, Patton DA, Wofford KL, Margulies SS, Cullen DK, Arbogast KB. Laboratory Assessment of a Headband-Mounted Sensor for Measurement of Head Impact Rotational Kinematics. J Biomech Eng 2021; 143:024502. [PMID: 32975553 PMCID: PMC10782863 DOI: 10.1115/1.4048574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 08/31/2020] [Indexed: 11/08/2022]
Abstract
Head impact sensors measure head kinematics in sports, and sensor accuracy is crucial for investigating the potential link between repetitive head loading and clinical outcomes. Many validation studies mount sensors to human head surrogates and compare kinematic measures during loading from a linear impactor. These studies are often unable to distinguish intrinsic instrumentation limitations from variability caused by sensor coupling. The aim of the current study was to evaluate intrinsic sensor error in angular velocity in the absence of coupling error for a common head impact sensor. Two Triax SIM-G sensors were rigidly attached to a preclinical rotational injury device and subjected to rotational events to assess sensor reproducibility and accuracy. Peak angular velocities between the SIM-G sensors paired for each test were correlated (R2 > 0.99, y = 1.00x, p < 0.001). SIM-G peak angular velocity correlated with the reference (R2 = 0.96, y = 0.82x, p < 0.001); however, SIM-G underestimated the magnitude by 15.0% ± 1.7% (p < 0.001). SIM-G angular velocity rise time (5% to 100% of peak) correlated with the reference (R2 = 0.97, y = 1.06x, p < 0.001) but exhibited a slower fall time (100% to 5% of peak) by 9.0 ± 3.7 ms (p < 0.001). Assessing sensor performance when rigidly coupled is a crucial first step to interpret on-field SIM-G rotational kinematic data. Further testing in increasing biofidelic conditions is needed to fully characterize error from other sources, such as coupling.
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Affiliation(s)
- Colin M. Huber
- Department of Bioengineering, University of Pennsylvania, 2716 South Street, Philadelphia, PA 19146; Children's Hospital of Philadelphia, Center for Injury Research and Prevention (CIRP), 2716 South Street, Philadelphia, PA 19146
| | - Declan A. Patton
- Children's Hospital of Philadelphia, Center for Injury Research and Prevention (CIRP), 2716 South Street, Philadelphia, PA 19146
| | - Kathryn L. Wofford
- Department of Neurosurgery, University of Pennsylvania, 3320 Smith Walk, 105 Hayden Hall, Philadelphia, PA 19104
| | - Susan S. Margulies
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, U.A. Whitaker Building, 313 Ferst Drive, Suite 2116, Atlanta, GA 30332-0535
| | - D. Kacy Cullen
- Department of Neurosurgery, Center for Brain Injury & Repair, University of Pennsylvania, 3320 Smith Walk, 105E Hayden Hall, Philadelphia, PA 19104; Department of Bioengineering, University of Pennsylvania, 3320 Smith Walk, 105E Hayden Hall, Philadelphia, PA 19104
| | - Kristy B. Arbogast
- Children's Hospital of Philadelphia, Center for Injury Research and Prevention (CIRP), 2716 South Street, Philadelphia, PA 19146; Department of Pediatrics, University of Pennsylvania, 2716 South Street, Philadelphia, PA 19146
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