Expertise Influence on Anticipatory Postural Adjustment under Different Temporal Pressure

Alireza Aminaee; Shahzad Tahmasebi Boroujeni; Elahe Arab Ameri; Mehdi Shahbazi

doi:10.52547/ijmcl.4.2.14

Journal of Motor Control and Learning

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https://doi.org/10.52547/ijmcl.4.2.14

Expertise Influence on Anticipatory Postural Adjustment under Different Temporal Pressure

Author(s):

Alireza Aminaee

¹,

Shahzad Tahmasebi Boroujeni

^2,*,

Elahe Arab Ameri

²,

Mehdi Shahbazi

²

1PhD Student of Motor Control, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran

2Associate Professor of Motor Behaviour, Department of Motor Behaviour and Sport Psychology, University of Tehran, Tehran, Iran

Journal of Motor Control and Learning:Vol. 4, issue 2; 14-21

Published online:May 05, 2022

Article type:Research Article

Received:Jan 19, 2022

Accepted:Apr 25, 2022

How to Cite:Alireza AminaeeShahzad Tahmasebi BoroujeniElahe Arab AmeriMehdi ShahbaziExpertise Influence on Anticipatory Postural Adjustment under Different Temporal Pressure.J Motor Control Learn.4(2):e144317.https://doi.org/10.52547/ijmcl.4.2.14.

Abstract

Background: Skilled athletes’ optimal performance might be due to their postural ability to counteract perturbation. However, how expertise influences the coordination of anticipatory postural adjustment (APA) and main movement under temporal pressure needs more investigation. This study aimed to investigate how available time (temporal pressure) for the central nervous system to prepare postural and motor commands, differentiates skilled and novice postural capacity during performing Table Tennis Forehand stroke.
Methods: 10 skilled (20.3±1.15 years old) and 10 novices (19.9±0.99 years old) Table Tennis players while maintaining Forehand stroke position on two force plates stand in front of a screen that presents a Coincident Anticipation Timing stimulus. Participants completed a block of 20 trials consisting of random-order presentation of fast and slow stimuli and surface muscle activity of postural muscles was recorded using an Electromyography device, simultaneously.
Results: The results of two-way MANOVA showed that more/less temporal pressure for the central nervous system led to later/earlier onset time of APA with lower/higher magnitude, respectively. Skilled players’ postural strategy was the higher magnitude of APA in dorsal muscles (Erector Spainae, Biceps Femoris, and Gasterocnemous), more backward peak excursion, and lower velocity of the center of pressure.
Conclusion: Although such findings may be beneficial factors for coaches in programming athletes’ training, however, the similarity in anticipatory postural adjustments’ onset time of novice and skilled players, do not let a certain conclusion about the effects of expertise on feed-forward control of posture.

Keywords

Electromyography

Coincidence Anticipation

Anticipatory Postural Control

Table Tennis

Muscle Activation

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Author(s):

Alireza Aminaee:[PubMed][Scholar]
Shahzad Tahmasebi Boroujeni:[PubMed][Scholar]
Elahe Arab Ameri:[PubMed][Scholar]
Mehdi Shahbazi:[PubMed][Scholar]