Longitudinal kinematic and kinetic adaptations to obstacle crossing in recent lower limb amputees

Barnett, CT ORCID: 0000-0001-6898-9095, Polman, RCJ and Vanicek, N, 2014. Longitudinal kinematic and kinetic adaptations to obstacle crossing in recent lower limb amputees. Prosthetics and Orthotics International, 38 (6), pp. 437-446. ISSN 0309-3646

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Abstract

Background: Obstacle crossing is an important activity of daily living, necessary to avoid tripping or falling, although it is not fully understood how transtibial amputees adapt to performing this activity of daily living following discharge from rehabilitation. Objectives: The objective of this study was to investigate the longitudinal adaptations in obstacle crossing in transtibial amputees post-discharge from rehabilitation. Study design: Longitudinal repeated measures. Methods: Seven unilateral transtibial amputees crossed an obstacle 0.1m high positioned along a walkway while kinematic and kinetic data were recorded at 1, 3 and 6 months post-discharge. Results: At 6 months post-discharge, walking velocity had increased (0.17 m.s−1) with most participants self-selecting an intact lead limb preference. During swing phase, peak knee flexion (p = 0.03) and peak knee power absorption (K4; p = 0.01) were greater with an intact versus affected lead limb preference. Having crossed the obstacle, intact limb peak ankle power generation in pre-swing (A2; p = 0.01) and knee power absorption (K3; p = 0.05) during stance phase were greater when compared to the affected limb. Conclusions: Obstacle crossing improved, although a greater reliance on intact limb function was highlighted. Results suggested that further improvements to locomotor performance may be obtained by increasing affected limb knee range of motion and concentric and eccentric strength of the knee extensors and flexors.

Item Type: Journal article
Publication Title: Prosthetics and Orthotics International
Creators: Barnett, C.T., Polman, R.C.J. and Vanicek, N.
Publisher: Sage
Date: 2014
Volume: 38
Number: 6
ISSN: 0309-3646
Identifiers:
NumberType
10.1177/0309364613506249DOI
Divisions: Schools > School of Science and Technology
Depositing User: EPrints Services
Date Added: 09 Oct 2015 11:15
Last Modified: 09 Jun 2017 13:53
URI: http://irep.ntu.ac.uk/id/eprint/25001

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