Document Detail

Postural Adjustments in Catching: on the Interplay Between Segment Stabilization and Equilibrium Control.
MedLine Citation:
PMID:  23154204     Owner:  NLM     Status:  Publisher    
The purpose of this study was to investigate postural adjustments in one-handed ball catching. Specifically, the functional role of anticipatory postural adjustments (APA) during the initial arm raising and subsequent postural adjustments (SPA) for equilibrium control and ball-hand impact were scrutinized. Full-body kinematics and kinetics allowed an analysis of the mechanical consequences of raising up the arm and preparing for ball-hand impact. APA for catching were suggested to be for segment stabilization. SPA had a functional role for equilibrium control by an inverted pendulum mechanism but were also involved in preparing for the impact of the ball on the hand, which was illustrated by an increased postural response at the end of the movement. These results were compared with raising up the arm in a well-studied reaction-time task, for which an additional counter rotation equilibrium mechanism was observed. Together, our findings demonstrate that postural adjustments should be investigated in relation to their specific functional task constraints, rather than generalizing the functional role of these postural adjustments over different tasks.
Pieter Tijtgat; Jos Vanrenterghem; Simon J Bennett; Dirk De Clercq; J P Savelsbergh G; Matthieu Lenoir
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-15
Journal Detail:
Title:  Motor control     Volume:  -     ISSN:  1087-1640     ISO Abbreviation:  Motor Control     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706297     Medline TA:  Motor Control     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Movement and Sports Sciences, Ghent University, Gent, Belgium.
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