Blast-induced traumatic brain injury is the most prevalent military injury in Iraq and Afghanistan, yet little is known about the mechanical effects of blasts on the human head, and still less is known about how personal protective equipment affects the brain's response to blasts. In this study we investigated the effect of the Advanced Combat Helmet (ACH) and a conceptual face shield on the pr...

PROBLEM Road traffic injuries are a leading cause of death and disability in Viet Nam. In 2008, official data reported 11 243 deaths and 7771 serious injuries on the roads, of which an estimated 60% of fatalities occur in motorcycle riders and passengers. In recognition of this problem, Viet Nam has had partial motorcycle helmet legislation since 1995. However, for a variety of reasons, impleme...

This paper presents the development of a dynamic Active Noise Control (ANC) algorithm aimed towards reducing broadband noise inside helmet earcups fighter aircraft pilot helmet. The ANC involves Variable Step-Size Griffiths (VSSG) FxLMS to attenuate entering directly through helmet, LMS based adaptive canceller microphone, and energy detectors for failure protection optimized battery power usag...

The football helmet is used to help mitigate the occurrence of impact-related traumatic (TBI) and minor traumatic brain injuries (mTBI) in the game of American football. While the current helmet design methodology may be adequate for reducing linear acceleration of the head and minimizing TBI, it however has had less effect in minimizing mTBI. The objectives of this study are (a) to develop and...

BACKGROUND The purpose of this study was to identify the impact of motorcycle helmet use on patient outcomes and cost of hospitalization, in a state with a mandatory helmet law. METHODS Patients admitted after motorcycle crashes from July 1996 to October 2000 were reviewed, including demographics, Injury Severity Score, length of stay, injuries, outcome, helmet use, hospital cost data, and in...

OBJECTIVE To compare effectiveness on correcting cranial and ear asymmetry between helmet therapy and counter positioning for deformational plagiocephaly (DP). METHODS Retrospective data of children diagnosed with DP who visited our clinic from November 2010 to October 2012 were reviewed. Subjects ≤10 months of age who showed ≥10 mm of diagonal difference were included for analysis. For DP tr...

Although cycling may be attractive for both economic and environmental reasons, cyclists are extremely vulnerable road users and subjected to falls or collisions with cars. This present research attempts to understand the degree of protection offered by a commercial bicycle helmet under standard impact conditions. In accordance with the EN 1078 standard, an experimental program has b...

OBJECTIVE To determine the characteristics and the severity of head and facial injuries to helmeted child bicyclists, and whether the helmet contributed to the injury, and to study factors related to bicycle accidents. DESIGN Retrospective review of two case series. Children sustaining head injury while not wearing helmets were studied as a form of reference group. SETTING Large paediatric ...

BACKGROUND National estimates of all-terrain vehicle (ATV) riding patterns among youth in the USA are lacking. METHODS We analysed the 2011 YouthStyles survey to estimate the proportion of 12-17 year olds in the USA who had ridden an ATV at least once during the past 12 months and summarise their patterns of helmet use. RESULTS Of the 831 youth respondents, an estimated 25% reported riding ...

A spectacular hypothesis was published recently, which suggested that the "helmet" (a dorsal thoracic sclerite that obscures most of the body) of treehoppers (Insecta: Hemiptera: Membracidae) is connected to the 1st thoracic segment (T1; prothorax) via a jointed articulation and therefore was a true appendage. Furthermore, the "helmet" was interpreted to share multiple characteristics with wing...