Neuromaturation of human locomotion revealed by non-dimensional scaling
When two fundamental gait parameters--step length and step frequency--are scaled non-dimensionally, thereby accounting for increases in a child's physical size, ontogenetic changes in the locomotor control strategy are revealed. We believe dimensionless velocity beta, the product of dimensionle...
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| Veröffentlicht in: | Experimental brain research 2003-11, Vol.153 (1), p.123-127 |
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| creator | VAUGHAN, Christopher L LANGERAK, Nelleke G OMALLEY, Mark J |
| description | When two fundamental gait parameters--step length and step frequency--are scaled non-dimensionally, thereby accounting for increases in a child's physical size, ontogenetic changes in the locomotor control strategy are revealed. We believe dimensionless velocity beta, the product of dimensionless step length and frequency, serves as a measure of neural development. It increases from the age of 18 months and reaches a plateau between 50 and 90 months, attaining the adult value of 0.45. Based on a study of 200 children, our findings lend support to a theory that posits a neuromaturation growth curve with the form: beta (t)=0.45 (1-e(-0.05t)) where t is the age in months and 0.05 is the growth coefficient. |
| doi_str_mv | 10.1007/s00221-003-1635-x |
| format | Article |
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We believe dimensionless velocity beta, the product of dimensionless step length and frequency, serves as a measure of neural development. It increases from the age of 18 months and reaches a plateau between 50 and 90 months, attaining the adult value of 0.45. Based on a study of 200 children, our findings lend support to a theory that posits a neuromaturation growth curve with the form: beta (t)=0.45 (1-e(-0.05t)) where t is the age in months and 0.05 is the growth coefficient.</description><identifier>ISSN: 0014-4819</identifier><identifier>EISSN: 1432-1106</identifier><identifier>DOI: 10.1007/s00221-003-1635-x</identifier><identifier>PMID: 14566445</identifier><identifier>CODEN: EXBRAP</identifier><language>eng</language><publisher>Berlin: Springer</publisher><subject>Adolescent ; Age ; Biological and medical sciences ; Body Constitution - physiology ; Child ; Child, Preschool ; Female ; Fundamental and applied biological sciences. 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Psychology</topic><topic>Gait</topic><topic>Gait - physiology</topic><topic>Humans</topic><topic>Infant</topic><topic>Male</topic><topic>Models, Neurological</topic><topic>Motor Activity - physiology</topic><topic>Motor control and motor pathways. Reflexes. Control centers of vegetative functions. 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| subjects | Adolescent Age Biological and medical sciences Body Constitution - physiology Child Child, Preschool Female Fundamental and applied biological sciences. Psychology Gait Gait - physiology Humans Infant Male Models, Neurological Motor Activity - physiology Motor control and motor pathways. Reflexes. Control centers of vegetative functions. Vestibular system and equilibration Spinal Cord - growth & development Spinal Cord - physiology Vertebrates: nervous system and sense organs Walking |
| title | Neuromaturation of human locomotion revealed by non-dimensional scaling |
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