The Influence of Head Impact Threshold for Reporting Data in Contact and Collision Sports: Systematic Review and Original Data Analysis

D, King; Hume, Patria A.; Gissane, Conor; Brughelli, Matt; Clark, Trevor

doi:10.1007/s40279-015-0423-7

Cited by 72 publications

(59 citation statements)

References 128 publications

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“…One needs to know the minimal triggering value to compare impact magnitudes across studies. King et al 105 evaluated how varying recording thresholds would change the head-impact data. By increasing the recording threshold from 10g to 15g, the number of impacts was reduced by 45% and 81% of impacts were removed.…”

Section: Recording Thresholdmentioning

confidence: 99%

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Head-Impact–Measurement Devices: A Systematic Review

O’Connor

Rowson

Duma

et al. 2017

Journal of Athletic Training

161

117

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Context: With an estimated 3.8 million sport-and recreation-related concussions occurring annually, targeted prevention and diagnostic methods are needed. Biomechanical analysis of head impacts may provide quantitative information that can inform both prevention and diagnostic strategies.Objective: To assess available head-impact devices and their clinical utility.Data Sources: We performed a systematic search of the electronic database PubMed for peer-reviewed publications, using the following phrases: accelerometer and concussion, head impact telemetry, head impacts and concussion and sensor, head impacts and sensor, impact sensor and concussion, linear acceleration and concussion, rotational acceleration and concussion, and xpatch concussion. In addition to the literature review, a Google search for head impact monitor and concussion monitor yielded 15 more devices.Study Selection: Included studies were performed in vivo, used commercially available devices, and focused on sportrelated concussion.Data Extraction: One author reviewed the title and abstract of each study for inclusion and exclusion criteria and then reviewed each full-text article to confirm inclusion criteria. Controversial articles were reviewed by all authors to reach consensus.Data Synthesis: In total, 61 peer-reviewed articles involving 4 head-impact devices were included. Participants in boxing, football, ice hockey, soccer, or snow sports ranged in age from 6 to 24 years; 18% (n ¼ 11) of the studies included female athletes. The Head Impact Telemetry System was the most widely used device (n ¼ 53). Fourteen additional commercially available devices were presented.Conclusions: Measurements collected by impact monitors provided real-time data to estimate player exposure but did not have the requisite sensitivity to concussion. Proper interpretation of previously reported head-impact kinematics across age, sport, and position may inform future research and enable staff clinicians working on the sidelines to monitor athletes. However, head-impact-monitoring systems have limited clinical utility due to error rates, designs, and low specificity in predicting concussive injury.

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Section: Recording Thresholdmentioning

confidence: 99%

“…By increasing the recording threshold from 10g to 15g, the number of impacts was reduced by 45% and 81% of impacts were removed. 105 Therefore, studies with lower trigger values will record more impacts and may tend to show lower mean impact magnitudes than studies with higher trigger values.…”

Section: Recording Thresholdmentioning

confidence: 99%

Head-Impact–Measurement Devices: A Systematic Review

O’Connor

Rowson

Duma

et al. 2017

Journal of Athletic Training

161

117

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“…60 However, these differences are likely driven by their decision to use a minimum threshold of 20g in their analysis; because the distribution of head impact severities is highly weighted toward lower values, differences in the minimum threshold can have large effects on the calculated average severity values. 69 This reality makes it difficult to compare published results from biomechanical studies of head impact, as the minimum threshold is arbitrarily set for each study (although 10g, 15g, or 20g thresholds seem to be most common). In the present study, we chose to use the default 10g setting of the device, as the minimum threshold for physiologically significant impacts is unknown.…”

Section: Reynolds Et Almentioning

confidence: 99%

“…In the present study, we chose to use the default 10g setting of the device, as the minimum threshold for physiologically significant impacts is unknown. Further, a plurality of biomechanical head impact studies in sport use a 10g threshold, 69 which enables wider comparison with the existing literature across sports.…”

Section: Reynolds Et Almentioning

confidence: 99%

Comparative Analysis of Head Impact in Contact and Collision Sports

Reynolds

Patrie

Henry

et al. 2017

Journal of Neurotrauma

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As concerns about head impact in American football have grown, similar concerns have started to extend to other sports thought to experience less head impact, such as soccer and lacrosse. However, the amount of head impact experienced in soccer and lacrosse is relatively unknown, particularly compared with the substantial amount of data from football. This pilot study quantifies and compares head impact from four different types of sports teams: college football, high school football, college soccer, and college lacrosse. During the 2013 and 2014 seasons, 61 players wore mastoid patch accelerometers to quantify head impact during official athletic events (i.e., practices and games). In both practices and games, college football players experienced the most or second-most impacts per athletic event, highest average peak resultant linear and rotational acceleration per impact, and highest cumulative linear and rotational acceleration per athletic event. For average peak resultant linear and rotational acceleration per individual impact, college football was followed by high school football, then college lacrosse, and then college soccer, with similar trends in both practices and games. In the four teams under study, college football players experienced a categorically higher burden of head impact. However, for cumulative impact burden, the high school football cohort was not significantly different from the college soccer cohort. The results suggest that head impact in sport substantially varies by both the type of sport (football vs. soccer vs. lacrosse) and level of play (college vs. high school).

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“…Scientific training monitoring including the diagnosis and monitoring of body function, sport techniques in diagnosis and monitoring, diagnosis and monitoring the content of the aspects of psychological state as monitoring is carried out on the track and field athletes training, with the physiological and biochemical indexes to evaluate the functional status of athletes [1][2].…”

Section: Introductionmentioning

confidence: 99%

Sports Athletes Real-time Analysis Model based on Wearable Devices and Intelligent Detection System

Feng¹,

Chen²

2016

Proceedings of the 2016 5th International Conference on Advanced Materials and Computer Science

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Abstract. In this paper, we design and implement the sports athlete real-time analysis model based on wearable devices and intelligent detection system. Because of the wearable computer man-machine interactive mode and normal computer differences in way of the human-computer interaction, led to a wearable computer on the hardware structure is very different with traditional computer. In this paper, the wearable computer is discussed in detail two different hardware structures adopted by the way: the centralized and the distributed structure. Centralized structure is developed based on the traditional computer, suitable for rapid development and the development of wearable computer. With this basic assistance, we later analyze the integration of analysis model and wearable devices that will enhance the performance of the detection system which is meaningful.

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The Influence of Head Impact Threshold for Reporting Data in Contact and Collision Sports: Systematic Review and Original Data Analysis

Abstract: Background: Head impacts and resulting head accelerations/decelerations are a primary cause of concussive

Cited by 72 publications

References 128 publications

Head-Impact–Measurement Devices: A Systematic Review

Head-Impact–Measurement Devices: A Systematic Review

Comparative Analysis of Head Impact in Contact and Collision Sports

Sports Athletes Real-time Analysis Model based on Wearable Devices and Intelligent Detection System

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