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A developmental study of the interlimb coordination in running and galloping
1Department of Physical Education and Dance, University of Wisconsin, Madison, WI 53706, USA.
Journal of Motor Behavior
|December 1, 1989
Summary
Interlimb coordination in running and galloping exhibits oscillatory dynamics, similar to coupled oscillators. While both gaits showed these properties, younger children and galloping presented less stable coordination patterns.
Area of Science:
- Motor control
- Dynamical systems theory
- Biomechanical analysis
Background:
- Interlimb coordination is crucial for locomotion.
- Understanding motor behavior through dynamical systems offers insights into coordination patterns.
Purpose of the Study:
- To investigate interlimb coordination in running and galloping using a dynamical systems approach.
- To determine if these gaits exhibit properties of coupled, nonlinear, limit-cycle oscillators.
Main Methods:
- Filming female subjects across a wide age range (2.5 years to adult) performing running and galloping.
- Applying a weight perturbation during locomotion tasks.
- Analyzing temporal and amplitude phasing measures to assess coordination dynamics.
Main Results:
- Both running and galloping demonstrated oscillatory properties consistent with coupled oscillators.
- Phase locking and entrainment were observed in interlimb coordination.
- Younger children (≤4 years) exhibited less stable phasing patterns.
- The gallop, especially amplitude phasing, showed less stability across all age groups.
Conclusions:
- Locomotor gaits like running and galloping can be modeled as coupled, nonlinear oscillators.
- Age and gait type influence the stability and characteristics of interlimb coordination.
- Dynamical systems principles effectively explain observed motor behavior in human locomotion.