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Gait Posture. 2014 Mar;39(3):995-8. doi: 10.1016/j.gaitpost.2013.12.006. Epub 2013 Dec 18.

Assessing preparative gait adaptations in persons with transtibial amputation in response to repeated medial-lateral perturbations.

Author information

1
Center for the Intrepid, Department of Orthopedics and Rehabilitation, Ft. Sam Houston, TX, 78234, USA; Naval Medical Center San Diego, San Diego CA, 92134, USA.
2
Center for the Intrepid, Department of Orthopedics and Rehabilitation, Ft. Sam Houston, TX, 78234, USA; School of Kinesiology, University of Michigan, Ann Arbor, MI, 48109, USA. Electronic address: gatesd@umich.edu.
3
Center for the Intrepid, Department of Orthopedics and Rehabilitation, Ft. Sam Houston, TX, 78234, USA; Department of Physical Therapy, Virginia Commonwealth University, Richmond, VA, 23298, USA.
4
Center for the Intrepid, Department of Orthopedics and Rehabilitation, Ft. Sam Houston, TX, 78234, USA.

Abstract

Preventing loss of balance in individuals with transtibial amputation is important, as they are susceptible to a high frequency of fall related injuries. In order to validate fall prevention and balance therapies, methods to assess gait stability must be developed. Kinematic, temporal-spatial, and center of mass data from six healthy young participants with transtibial amputation were collected during treadmill walking during exposure to 10 randomly ordered discrete medial-lateral perturbations. The 20 strides prior to each perturbation were assessed for anticipatory changes. The only consistent postural adjustment made as a result of the perturbations was a significantly lowered center of mass height (p=0.016).

KEYWORDS:

Amputees; Gait; Kinematics; Perturbations; Variability

PMID:
24411224
PMCID:
PMC4050440
DOI:
10.1016/j.gaitpost.2013.12.006
[Indexed for MEDLINE]
Free PMC Article

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