TY  - JOUR
PY  - 2018//
TI  - Sex differences in the end-state comfort effect in pre-adolescent children
JO  - Human movement science
A1  - Scharoun, Sara M.
A1  - Robinson, Leah E.
A1  - Logan, Samuel W.
A1  - Bryden, Pamela J.
A1  - Brock, Sheri J.
A1  - Fischman, Mark G.
SP  - 244
EP  - 250
VL  - 57
IS  - 
N2  - There has been recent interest in the developmental trajectory of the end-state comfort effect (ESCE) in young children. However, potential sex differences have yet to be examined in the overturned glass task. We examined the ESCE using this task in a large sample (N=232) of typically-developing elementary school children (111 girls, 121 boys) in grades 1-5 (approximately 7-11years old). We sought to determine whether there were similarities or differences in performance between boys and girls. Children picked up an overturned drinking glass from a table, turned the glass upright, and then poured water into it from a measuring cup. Three trials were performed, and the use of an initial awkward thumb-down grip to pick up the glass was taken as evidence for the ESCE. There were non-significant main effects for sex and grade, but a significant interaction between factors. Boys increased in sensitivity to end-state comfort across the five grades while girls showed a decrease from grades 1-3, followed by an increase between grades 3 and 5. Taken together, the results indicate the presence of adult-like motor planning for the overturned glass task by the 4th grade (i.e., age 10), but also suggest the presence of a motor reorganization in girls, at around the 2nd or 3rd grade (i.e., 8 or 9years of age).<br><br>Copyright © 2017 Elsevier B.V. All rights reserved.<p />  <p>Language: en</p>
LA  - en
SN  - 0167-9457
UR  - http://dx.doi.org/10.1016/j.humov.2017.09.001
ID  - ref1
ER  -