نتایج جستجو برای: helmet

تعداد نتایج: 2939  

2016
Zachary Olson John A Staples Charles Mock Nam Phuong Nguyen Abdulgafoor M Bachani Rachel Nugent Stéphane Verguet

BACKGROUND Vietnam's 2007 comprehensive motorcycle helmet policy increased helmet use from about 30% of riders to about 93%. We aimed to simulate the effect that this legislation might have on: (a) road traffic deaths and non-fatal injuries, (b) individuals' direct acute care injury treatment costs, (c) individuals' income losses from missed work and (d) individuals' protection against medical ...

Journal: :Journal of forensic sciences 2015
Karin A Rafaels Hattie C Cutcliffe Robert S Salzar Martin Davis Brian Boggess Bryan Bush Robert Harris Mark Steve Rountree Ellory Sanderson Steven Campman Spencer Koch Cameron R Dale Bass

Modern ballistic helmets defeat penetrating bullets by energy transfer from the projectile to the helmet, producing helmet deformation. This deformation may cause severe injuries without completely perforating the helmet, termed "behind armor blunt trauma" (BABT). As helmets become lighter, the likelihood of larger helmet backface deformation under ballistic impact increases. To characterize th...

Journal: :Tanzania journal of health research 2014
Phillipo L Chalya Isidori H Ngayomela Joseph B Mabula Nkinda Mbelenge Ramesh M Dass Alphonce Chandika Japhet M Gilyoma Anthony Kapesa Sospatro E Ngallaba

Motorcycle helmets have been reported to reduce the risk of death and head injuries following motorcycle accidents. The aim of this descriptive prospective study was to determine the injury outcome among helmeted and non-helmeted motorcyclists and passengers at a tertiary hospital in north-western Tanzania. A total of 654 patients involved in the motorcycle accident were studied. Of these, 468 ...

Journal: :Accident; analysis and prevention 2001
D L Robinson

It was claimed that the bicycle helmet law in New Zealand reduced head injuries to adult cyclists by 28% (Povey, L.J., Frith, W.J., Graham, P.G., 1999. Cycle helmet effectiveness in New Zealand. Accident Analysis and Prevention 31, 763-770). However, the pre-law increase in adults wearing helmets (from 30% in 1990 to 43% in 1993) was accompanied by a fall of 45 head injuries per 100 limb injuri...

2010
Liying Zhang Dwarampudi Ramesh King H. Yang Albert I. King

Mini-sled impact tests using a Hybrid III head-neck complex with and without a helmet were conducted to contrast resulting head accelerations. Because this experimental configuration includes both the linear and rotational impacts to the head, it represents the real world football impact condition better than drop tests traditionally used to evaluate the protective effect of a helmet. It was fo...

Journal: :The Cochrane database of systematic reviews 2007
A Macpherson A Spinks

BACKGROUND Evidence exists to suggest that bicycle helmets may reduce the risk of head injuries to cyclists, however helmets are not uniformly worn by all bicycle users. Legislation has been enacted in some countries to mandate helmet use by cyclists, however the issue remains controversial with opponents arguing that this may inhibit people from bicycle riding and thus from gaining the associa...

Journal: :Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention 1999
F P Rivara S J Astley S K Clarren D C Thompson R S Thompson

BACKGROUND Although bicycle helmets are effective in preventing head and brain injury, some helmeted individuals nevertheless sustain head injury. One of the possible reasons may be poor fit of the helmet on the head. This study was undertaken to examine the relationship between helmet fit and risk of injury. METHODS 1718 individuals who were helmeted riders in a crash were queried on helmet ...

Journal: :The Journal of the American Board of Family Practice 1995
P Rouzier W A Alto

BACKGROUND Bicycling injuries claim more than 900 lives each year in the United States, and the major cause of deaths is head injuries. Bicycle helmets can prevent head and brain injuries, yet helmet use rate remains low. Helmets are expensive, and their cost can be prohibitive. This study asks the question, "If bicycle helmets are made affordable, will they be worn?" METHODS A multifaceted b...

Journal: :Przeglad lekarski 2015
Tomasz Kwiatkowski

Head trauma is leading cause of mortality after injuries related with skiing and snowboarding. Wearing a helmet is considered to be a primary method to prevent traumatic brain injuries (TBI) among alpine sports participants. This article, based on literature review, determines the efficacy of helmets and safety of their use. It also presents practical principles of proper helmet fitting. A well...

Journal: :Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention 2003
A Cook A Sheikh

In England the use of bicycle helmets remains low as debate continues about their effectiveness. Time trend studies have previously shown an inverse association between helmet wearing rates and hospital admissions for head injury, but data on helmet wearing are often sparse and admission rates vary for numerous reasons. For the period of this study comprehensive data on helmet wearing are avail...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید