The large number of mild traumatic brain injuries (mTBIs) occurring each year, along with increasing evidence that these injuries are more serious than previously thought, has created a demand to understand how mTBIs occur so that they can be prevented. The use of helmet-based instrumentation to estimate head impact biomechanics in sports is an increasingly popular method by which to study mTBI...

The research presented herein is an analysis of acceleration measurements of the head during helmet-helmet impacts, where a player’s helmet impacts another player’s helmet, and with a youth population in football. This research is aimed at advancing current understanding of impact biomechanics for two specialized groups. The first study is an observational analysis focusing on helmet-helmet imp...

The side of the head is a frequent impact site for pedal cyclists, motorcyclists, and industrial workers. It is vulnerable to impact, yet many helmet standards do not have impact tests at the side of the helmet. Laboratory impact tests should reproduce the phenomena in real impacts, but usually they do not allow the headform to rotate, or ignore the effect of the neck on the motion of the head....

INTRODUCTION The relationship between cervical spine injury (CSI) and helmet in head injury (HI) patients following motorcycle crashes is crucial. Controversy still exists; therefore we evaluated the effect of various types of helmets on CSI in HI patients following motorcycle crashes and researched the mechanism of this effect. PATIENTS AND METHODS A total of 5225 patients of motorcycle cras...

OBJECTIVE To analyze the feasibility of using continuous positive airway pressure (CPAP) delivered via a modified helmet to treat children with hypoxemic acute respiratory failure. DESIGN A single-center, prospective, clinical study. SETTING Pediatric intensive care unit in a university hospital. PATIENTS Fifteen consecutive children (from 1 month to 5 yrs of age) with hypoxemic acute res...

The ability of a helmet to reduce injury to the wearer in the first instance depends on whether it is securely in place during the impact. A helmet may be displaced or even ejected during a crash if it has been incorrectly fastened, worn, or inappropriately sized for the wearer's head. In the current pedal and motorcycle helmet standards, the propensity of a helmet to roll off the head in a cra...

BACKGROUND In a previous study, we concluded that a safety helmet can reduce the risk for head injury by 60%. Other studies reported similar effects, resulting in a general recommendation to wear a helmet while skiing or snowboarding. AIM To determine the effect of the expected increased helmet wear on the risk of head injury one decade after the recommendation. METHODS Ski patrols reported...

In spring 1999, the authors evaluated the effectiveness of a 1997 Florida law requiring helmet use by all bicyclists younger than age 16 years. Sixty-four counties in Florida had enacted the bicycle helmet-use law, while the other three counties had opted out. Using a cross-sectional study design, the authors conducted unobtrusive observations at bicycle racks at public elementary schools state...

Helmet-mounted systems (HMS), such as night vision goggles and helmet-mounted displays, are designed to enhance pilot performance. Using HMS, however, may also affect pilot safety by increasing the potential for neck injury during ejection due to the increase in dynamic forces generated in the cervical spine as a result of the change in helmet inertial properties. Pilot bracing techniques may a...

OBJECTIVE The purpose of this study was to describe bicycle helmet use among Montreal cyclists as a step towards injury prevention programming. METHODS Using a cross-sectional study design, cyclists were observed during 60-minute periods at 22 locations on the island of Montreal. There were 1-3 observation periods per location. Observations took place between August 16 and October 31, 2011. S...