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Published byHerman Kartawijaya Modified over 5 years ago
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Learning to perform wheelchair wheelies: comparison of 2 training strategies1
James P Bonaparte, MSc, R.Lee Kirby, MD, Donald A MacLeod, MSc Archives of Physical Medicine and Rehabilitation Volume 85, Issue 5, Pages (May 2004) DOI: /j.apmr
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Fig 1 Examples of the 2 types of wheelie balance patterns as illustrated by AP displacement of the COP data (y axis). An increase (+) in displacement corresponds to a forward movement of the wheelchair while a decrease (-) in displacement corresponds to a backward movement. Zero (0) on the displacement axis corresponds with the center location of the forceplate. Horizontal (x) axis represents the time in seconds (20s in each figure). The take-off and landing phase data have been removed. (A) PBS. Note the rhythmic forward-backward movements and the gradual forward drift. (B) RBS. Note, at about 10 seconds, the wheelchair is rolled abruptly backward in response to a backward pitch, an overshoot followed by an abrupt forward movement to reachieve equilibrium. Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr )
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Fig 2 Total training time required by participants to pass the wheelie competence test. Mean +1 SD values are shown. Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr )
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Fig 3 Relationship between age and training time. The circles and triangles, respectively, represent participants trained using the RBS and PBS, respectively. The open and solid symbols represent able-bodied participants and wheelchair users, respectively. Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr )
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Fig 4 Examples of the 3 wheelie take-off patterns used to lift the front casters off the ground. An increase (+) in the AP COP displacement on the force platform (y axis) represents a forward movement of the wheelchair, while a decrease (-) represents a backward displacement. The end of the take-off phase, in each case (4), represents the moment when the participant completed the take-off phase and began the balance phase. (A) Initial forward displacement (1–2), followed by a backward displacement (2–3), and then forward displacement (3–4). (B) Initial backward displacement (2–3) and then forward displacement (3–4). (C) Forward displacement only (3–4). Archives of Physical Medicine and Rehabilitation , DOI: ( /j.apmr )
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