PMID- 23751303 OWN - NLM STAT- MEDLINE DCOM- 20140311 LR - 20130722 IS - 1873-3379 (Electronic) IS - 0891-4222 (Linking) VI - 34 IP - 9 DP - 2013 Sep TI - A comparative study of performance in simple and choice reaction time tasks between obese and healthy-weight children. PG - 2635-41 LID - S0891-4222(13)00178-9 [pii] LID - 10.1016/j.ridd.2013.04.016 [doi] AB - This study investigated weight status related differences in executive functions and movement execution to determine whether or not childhood obesity is associated with impaired perceptual-motor function. Nineteen obese (OB) children (10 male symbol and 9 female symbol, aged 6-12 years) and nineteen gender and age matched healthy-weight (HW) peers performed two computer-based reaction time tasks. For both the simple and four choice reaction time (SRT/CRT) task condition, absolute mean reaction time (RT) and movement time (MT) were determined and expressed as a percentage of total response time (RsT). During the SRT task, OB children were intrinsically slower than their HW peers as reflected by a significantly higher absolute RT, MT and RsT. In the CRT task, however, between-group differences were only present for RT and RsT, whereas absolute MT was comparable among OB and HW participants. As a result, the relative temporal structure of RsT significantly differed between BMI groups, with a greater RT percentage among the OB children. During the CRT condition, OB children probably await final decision-making with regard to the execution of their response movement, which then no longer needs to be adjusted. Our results therefore indicate the use of a more conservative strategy within the OB group, suggesting that childhood obesity is associated with impaired perceptual-motor function. Besides the widely accepted mechanical explanation, a better understanding of the mechanisms underlying OB children's motor incompetence is needed to set up appropriate interventions to tackle this deficit and indirectly address associated health-related problems. CI - Copyright (c) 2013 Elsevier Ltd. All rights reserved. FAU - Gentier, Ilse AU - Gentier I AD - Department of Movement and Sports Sciences, Ghent University, Watersportlaan 2, 9000 Ghent, Belgium. ilse.gentier@ugent.be FAU - Augustijn, Mireille AU - Augustijn M FAU - Deforche, Benedicte AU - Deforche B FAU - Tanghe, Ann AU - Tanghe A FAU - De Bourdeaudhuij, Ilse AU - De Bourdeaudhuij I FAU - Lenoir, Matthieu AU - Lenoir M FAU - D'Hondt, Eva AU - D'Hondt E LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130607 PL - United States TA - Res Dev Disabil JT - Research in developmental disabilities JID - 8709782 SB - IM MH - Body Height MH - Body Weight MH - Child MH - Choice Behavior/*physiology MH - Executive Function/physiology MH - Female MH - Humans MH - Male MH - Movement/physiology MH - Obesity/*physiopathology MH - Psychomotor Performance/*physiology MH - Reaction Time/*physiology OTO - NOTNLM OT - Children OT - Obesity OT - Perceptual-motor function OT - Reaction time OT - Response time EDAT- 2013/06/12 06:00 MHDA- 2014/03/13 06:00 CRDT- 2013/06/12 06:00 PHST- 2013/01/17 00:00 [received] PHST- 2013/04/19 00:00 [revised] PHST- 2013/04/22 00:00 [accepted] PHST- 2013/06/12 06:00 [entrez] PHST- 2013/06/12 06:00 [pubmed] PHST- 2014/03/13 06:00 [medline] AID - S0891-4222(13)00178-9 [pii] AID - 10.1016/j.ridd.2013.04.016 [doi] PST - ppublish SO - Res Dev Disabil. 2013 Sep;34(9):2635-41. doi: 10.1016/j.ridd.2013.04.016. Epub 2013 Jun 7.