Clinical trial NCT02455037: Evaluation of a Neck Strengthening Program to Reduce the Risk of Sport-related Concussion
Official title: Evaluation of a Neck Strengthening Program as a Potential Intervention to Reduce the Risk of Sport-related Concussion
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Sport-related Concussion
Brain Concussion
Healthy
Keywords: Concussion
Contact sport
Collision sport
Neck strengthening
Lead sponsor: University of Michigan
Sponsor class: OTHER
First posted: 2015-05-27
Enrollment: 17
Sex: ALL
Minimum age (years): 12
Maximum age (years): 19
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: OTHER

Brief summary: Evaluation of a neck strengthening program as a potential intervention to reduce the risk of sport-related concussion in youth contact and collision sport athletes.

Detailed description: This is a pilot study to investigate the effect of a supervised 8 week strengthening intervention in male and female youth contact and collision sport athletes. Participants will complete a supervised strengthening exercise intervention involving manual resistance exercises administered by a strength coach with pre- and post-intervention assessments of neck size and strength.

Eligibility criteria: Inclusion Criteria:

* Contact/collision sport athletes (for example, american football, soccer, rugby, lacrosse, ice hockey, field hockey, basketball, wrestling, boxing, martial arts, water polo)

Exclusion Criteria:

* History of concussion (suspected or diagnosed) in the previous 6 months
* History of neck pain or injury in the previous 6 months
* History of migraine headaches
* History of personal or parental history of a diagnosed anxiety disorder

Primary outcomes:
measure: Head linear velocity
timeFrame: Change from baseline to end of 8 week intervention.
measure: Head angular velocity
timeFrame: Change from baseline to end of 8 week intervention.
Secondary outcomes:
Other outcomes:
measure: Neck size (girth and muscle cross-sectional area)
timeFrame: Change from baseline to end of 8 week intervention.
measure: Neck strength (maximum force generating capacity)
timeFrame: Change from baseline to end of 8 week intervention.
Locations:
city: Ann Arbor
country: United States
facility: University of Michigan
state: Michigan
Study officials:
affiliation: Assistant Professor, Department of Physical Medicine & Rehabilitation
name: James T Eckner, MD, MS
role: PRINCIPAL_INVESTIGATOR
References:
citation: Ashton-Miller JA, McGlashen KM, Herzenberg JE, Stohler CS. Cervical muscle myoelectric response to acute experimental sternocleidomastoid pain. Spine (Phila Pa 1976). 1990 Oct;15(10):1006-12. doi: 10.1097/00007632-199015100-00005.
citation: Centers for Disease Control and Prevention (CDC). Nonfatal traumatic brain injuries from sports and recreation activities--United States, 2001-2005. MMWR Morb Mortal Wkly Rep. 2007 Jul 27;56(29):733-7.
citation: Dvir Z, Prushansky T. Cervical muscles strength testing: methods and clinical implications. J Manipulative Physiol Ther. 2008 Sep;31(7):518-24. doi: 10.1016/j.jmpt.2008.08.008.
citation: Eckner JT, Oh YK, Joshi MS, Richardson JK, Ashton-Miller JA. Effect of neck muscle strength and anticipatory cervical muscle activation on the kinematic response of the head to impulsive loads. Am J Sports Med. 2014 Mar;42(3):566-76. doi: 10.1177/0363546513517869. Epub 2014 Jan 31.
citation: Broglio SP, Sosnoff JJ, Shin S, He X, Alcaraz C, Zimmerman J. Head impacts during high school football: a biomechanical assessment. J Athl Train. 2009 Jul-Aug;44(4):342-9. doi: 10.4085/1062-6050-44.4.342.
citation: Dick RW. Is there a gender difference in concussion incidence and outcomes? Br J Sports Med. 2009 May;43 Suppl 1:i46-50. doi: 10.1136/bjsm.2009.058172.
citation: Garces GL, Medina D, Milutinovic L, Garavote P, Guerado E. Normative database of isometric cervical strength in a healthy population. Med Sci Sports Exerc. 2002 Mar;34(3):464-70. doi: 10.1097/00005768-200203000-00013.
citation: Guskiewicz KM, Mihalik JP. Biomechanics of sport concussion: quest for the elusive injury threshold. Exerc Sport Sci Rev. 2011 Jan;39(1):4-11. doi: 10.1097/JES.0b013e318201f53e.
citation: Hamilton DF, Gatherer D, Jenkins PJ, Maclean JG, Hutchison JD, Nutton RW, Simpson AH. Age-related differences in the neck strength of adolescent rugby players: A cross-sectional cohort study of Scottish schoolchildren. Bone Joint Res. 2012 Jul 1;1(7):152-7. doi: 10.1302/2046-3758.17.2000079. Print 2012 Jul.