Biomaterial Database

Establishing normal values of moving two-point discrimination in children and adolescents. 1996

R P Hermann, and C B Novak, and S E Mackinnon

Department of Neurology, Washington University School of Medicine, St Louis, MO 63110, USA.

To establish normal values of moving two-point discrimination (2pd) in children and adolescents, bilateral median and ulnar nerve distribution in 313 subjects aged 4 to 18 years was evaluated. A moving 2pd of 2 to 3mm for both the median and ulnar nerve distributions bilaterally was found in 270 subjects. 2% (N = 5) had moving 2pds of 4mm for both right and left median nerve distributions. There was a significant increase in mean age with 2, 3 and 4mm of moving 2pd for median and ulnar nerves bilaterally. There was no significant difference between sexes for ulnar nerves bilaterally or left median nerve. A borderline difference was found between the sexes for the right median nerve. Multivariate logistic regression revealed age as a significant predictor of discrimination for all variables. Significantly more subjects had a moving 2pd of 4mm in the ulnar nerve distribution than in the median nerve distribution.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008475	Median Nerve	A major nerve of the upper extremity. In humans, the fibers of the median nerve originate in the lower cervical and upper thoracic spinal cord (usually C6 to T1), travel via the brachial plexus, and supply sensory and motor innervation to parts of the forearm and hand.	Median Nerves,Nerve, Median,Nerves, Median
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D005260	Female		Females
D006225	Hand	The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.	Hands
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000367	Age Factors	Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.	Age Reporting,Age Factor,Factor, Age,Factors, Age
D014459	Ulnar Nerve	A major nerve of the upper extremity. In humans, the fibers of the ulnar nerve originate in the lower cervical and upper thoracic spinal cord (usually C7 to T1), travel via the medial cord of the brachial plexus, and supply sensory and motor innervation to parts of the hand and forearm.	Nerve, Ulnar,Nerves, Ulnar,Ulnar Nerves