title: Helmet fit and cervical spine motion in collegiate men's lacrosse athletes secured to a spine board.
abstract: BACKGROUND
  Proper management of cervical spine injuries in men's lacrosse players depends in part upon the ability of the helmet to immobilize the head.
  
  
  OBJECTIVE
  To determine if properly and improperly fitted lacrosse helmets provide adequate stabilization of the head in the spine-boarded athlete.
  
  
  METHODS
  Crossover study.
  
  
  METHODS
  Sports medicine research laboratory.
  
  
  METHODS
  Eighteen healthy collegiate men's lacrosse players.
  
  
  METHODS
  Participants were asked to move their heads through 3 planes of motion after being secured to a spine board under 3 helmet conditions.
  
  
  METHODS
  Change in range of motion in the cervical spine was calculated for the sagittal, frontal, and transverse planes for both head-to-thorax and helmet-to-thorax range of motion in all 3 helmet conditions (properly fitted, improperly fitted, and no helmet).
  
  
  RESULTS
  Head-to-thorax range of motion with the properly fitted and improperly fitted helmets was greater than in the no-helmet condition (P < .0001). In the sagittal plane, range of motion was greater with the improperly fitted helmet than with the properly fitted helmet. No difference was observed in helmet-to-thorax range of motion between properly and improperly fitted helmet conditions. Head-to-thorax range of motion was greater than helmet-to-thorax range of motion in all 3 planes (P < .0001).
  
  
  CONCLUSIONS
  Cervical spine motion was minimized the most in the no-helmet condition, indicating that in lacrosse players, unlike football players, the helmet may need to be removed before stabilization.
authors.affiliation: University of North Carolina, Chapel Hill, NC 27599-8700, USA. mbusby@email.unc.edu
authors.forename: Meredith A
authors.initials: MA
authors.lastname: Petschauer
authors.forename: Randy
authors.initials: R
authors.lastname: Schmitz
authors.forename: Diane L
authors.initials: DL
authors.lastname: Gill
mesh_terms: D000704:Analysis of Variance; D001265:Athletic Injuries; D001696:Biomechanical Phenomena; D002574:Cervical Vertebrae; D018592:Cross-Over Studies; D006260:Head Protective Devices; D006801:Humans; D008297:Male; D015865:Racquet Sports / Q000293:injuries*; D016059:Range of Motion, Articular; D012149:Restraint, Physical / Q000379:methods; D013124:Spinal Injuries; D014187:Transportation of Patients / Q000379:methods; D014495:Universities; D055815:Young Adult
references.citation: Am J Sports Med. 2006 Oct;34(10):1675-9
references.pmid: 16735583
references.citation: Spine (Phila Pa 1976). 2002 May 1;27(9):995-8; discussion 998-9
references.pmid: 11979177
references.citation: Clin Sports Med. 2000 Oct;19(4):693-715
references.pmid: 11019736
references.citation: J Trauma. 1983 Jun;23(6):461-5
references.pmid: 6864837
references.citation: Am J Sports Med. 1990 Jan-Feb;18(1):50-7
references.pmid: 2301692
references.citation: J Athl Train. 2002 Jun;37(2):185-189
references.pmid: 12937433
references.citation: Neurosurgery. 2002 Mar;50(3 Suppl):S7-17
references.pmid: 12431281
references.citation: J Athl Train. 2004 Jun;39(2):138-145
references.pmid: 15173864
references.citation: Clin J Sport Med. 2001 Apr;11(2):82-6
references.pmid: 11403119
references.citation: J Athl Train. 2003 Sep;38(3):204-208
references.pmid: 14608428
references.citation: Clin J Sport Med. 1995 Jul;5(3):155-61
references.pmid: 7670970
references.citation: Ann Emerg Med. 1996 Sep;28(3):301-8
references.pmid: 8780473
references.citation: J Athl Train. 2005 Jul-Sep;40(3):155-61
references.pmid: 16284634