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2004

Coordination modes in the multisegmental dynamics of hula hooping

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Coordination modes in the multisegmental dynamics of hula hooping
In hula hooping, organized motions of the body keep the hoop in stable oscillatory motion parallel to the ground. We examined the hypothesis that the multiple degrees of freedom (DF) of the lower limbs in producing the oscillations are resolved into a few control DF. The Karhunen-Loe` ve decomposition was applied to the kinematics of the lower limbs in three experiments in which oscillation amplitude and frequency were manipulated. Kinematic variance was accommodated by two modes whose relative contributions varied with task parameters. Complementary analyses of interjoint Hilbert relative phase suggested a lower-limb organization into a vertical suspension mode and an oscillatory foreaft mode. These modes might stabilize the hoop's angular momentum by controlling, respectively, its vertical and horizontal components.
Ramesh Balasubramaniam, Michael T. Turvey
Added 16 Dec 2010
Updated 16 Dec 2010
Type Journal
Year 2004
Where BC
Authors Ramesh Balasubramaniam, Michael T. Turvey
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