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Body scaling of grip configurations in children aged 6–12 years
Author(s) -
Cesari Paola,
Newell Karl M.
Publication year - 2000
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/(sici)1098-2302(200005)36:4<301::aid-dev5>3.0.co;2-z
Subject(s) - scaling , grip strength , invariant (physics) , mathematics , statistics , psychology , geometry , medicine , physical therapy , mathematical physics
This study examined the influence of body scale on the grip configurations used by young children (6–12 years old) to displace cubes that varied systematically in size (L) and mass (M). It was determined if the scaling relation we had developed for adults $\rm K=\mit log\ \rm L_{c}+{\mit log\ \rm M_{c}\over\rm a+bL_{h}+cM_{h}}$ where L c and M c is the length side and mass of the cubes, respectively, and L h and M h are the length and mass of the hand, respectively, it would also predict the change in grip configurations across this age range in a fashion consistent with the principle of similitude. The statistical and scaling analyses revealed that the invariant body‐scaled relation that specified the adult grip transitions also held for the 6‐ to 12‐year‐old children. © 2000 John Wiley & Sons, Inc. Dev Psychobiol 36: 301–310, 2000