Bicycle helmets are highly effective at preventing head injury during head impact: Head-form accelerations and injury criteria for helmeted and unhelmeted impacts - Cripton, Peter A.; Dressler, Daniel M.; Stuart, Cameron A.; Dennison, Christopher R.; Richards, Darrin (Accident analysis and prevention, 2014)
Keywords: Acceleration; Accidents, Traffic; Bicycle; Bicycles; Bicycling - injuries; Biological and medical sciences; Biomechanical Phenomena; Biomechanics; Brain Injuries - etiology; Brain Injuries - prevention & control; Brain injury; Concussion; Craniocerebral Trauma - etiology; Craniocerebral Trauma - prevention & control; Head injuries; Head Protective Devices; Helmet; Helmets; Humans; Injuries; Injuries of the nervous system and the skull. Diseases due to physical agents; Injury prevention; Manikins; Medical sciences; Miscellaneous; Prevention and actions; Public health. Hygiene; Public health. Hygiene-occupational medicine; Risk; Traumas. Diseases due to physical agents; ANW, Canada; Helmet; Injury prevention; Concussion; Bicycle; Brain injury; Nervous system diseases; Head; Injury; Craniocerebral; Contusion; Individual safety equipment; Cerebral disorder; Prevention; Criterion; Central nervous system disease; Lesion; Safety; Head trauma; Acceleration