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Nested task constraints shape continuous perception-action coupling control during human locomotor pointing.

Ian Renshaw1, Keith Davids

  • 1Division of Sport and Recreation, Faculty of Health, Auckland University of Technology, Private Bag 92006, Auckland 1020, New Zealand. ian.renshaw@aut.ac.nz

Neuroscience Letters
|September 29, 2004
PubMed
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Professional cricket bowlers adjust their gait during run-ups, demonstrating continuous perception-action coupling. Visual adaptations of gait occur throughout the run-up, not just at the end.

Area of Science:

  • Human motor control
  • Biomechanics
  • Sports science

Background:

  • Locomotor pointing studies typically focus on maximal approach velocities.
  • Understanding perception-action coupling under varied constraints is crucial for human movement research.

Purpose of the Study:

  • To investigate locomotor pointing under sub-maximal velocities and speed-accuracy trade-offs.
  • To analyze gait adaptations in professional cricket bowlers during their run-ups.

Main Methods:

  • Analysis of run-up kinematics in six professional cricket bowlers.
  • Inter- and intra-trial analysis of step length adjustments.
  • Examination of visual adaptations of gait in relation to task constraints.

Main Results:

Related Experiment Videos

  • Locomotor pointing is controlled by a continuous perception-action coupling mechanism.
  • Visual gait adaptations were made throughout the run-up, not solely at the end.
  • Strong associations were found between the amount of step adjustment made and the amount needed.

Conclusions:

  • Prospective control models of locomotor pointing are robust, with continuous gait regulation based on perceived and required behavior.
  • Individual strategies for gait adjustment varied significantly among bowlers.
  • Findings enhance understanding of perception-action coupling under diverse task constraints in locomotor pointing.