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Changes to transtibial amputee gait with a weighted backpack on multiple surfaces.

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Changes to transtibial amputee gait with a weighted backpack on multiple surfaces.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Doyle, Sean S. Lemaire, Edward D. Besemann, Markus Dudek, Nancy L.
Description	Author Affiliation: Doyle SS ( University of Ottawa, School of Human Kinetics, Canada. Electronic address: sean.s.doyle86@gmail.com.); Lemaire ED ( Ottawa Hospital Research Institute, Centre for Rehabilitation Research and Development, Canada); Besemann M ( Canadian Forces Health Services, Canada. Electronic address: markus.besemann@forces.gc.ca.); Dudek NL ( University of Ottawa, Faculty of Medicine, Canada. Electronic address: ndudek@ottawahospital.on.ca.)
Abstract	BACKGROUND: Modern prosthetic technology and rehabilitation practices have enabled people with lower extremity amputations to participate in almost all occupations and physical activities. Carrying backpack loads can be an essential component for many of these jobs and activities; however, amputee gait with backpack loads is poorly understood. This knowledge gap must be addressed in order to further improve an individual's quality of living through changes in rehabilitation programs and prosthesis development. METHODS: Ten male, unilateral, K4-level (ability or potential for prosthetic ambulation that exceeds basic ambulation skills, exhibiting high impact, stress, or energy levels), transtibial amputees completed ten walking trials at a self-selected pace on simulated uneven ground, ramp ascent, and ramp descent. Five trials were with a 24.5 kg backpack load and five trials without. Temporal-spatial parameters and kinematic peak values for the ankle, knee, hip, pelvis, and trunk were collected and analyzed for differences between backpack conditions. FINDINGS: Each surface had novel findings not found on the other surfaces. However differences in temporal-spatial parameters were congruent with the literature on able bodied individuals. Pelvis and trunk angular velocities decreased with the backpack. Hip flexion on both limbs increased during weight acceptance while wearing the backpack, a common adaptation seen in able-bodied individuals on level ground. INTERPRETATION: A 24.5 kg backpack load can be accommodated by transtibial amputees at the K4 functional level. Future studies on load carriage and gait training programs should include incline and descent due to the increased difficulty. Rehabilitation programs should verify hip and knee flexor strength and work to reduce intact limb reliance.
File Format	HTM / HTML
ISSN	02680033
Issue Number	10
Volume Number	30
e-ISSN	18791271
Journal	Clinical Biomechanics
Language	English
Publisher	Elsevier
Publisher Date	2015-12-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Biomedical Engineering Discipline Physiology Amputation Rehabilitation Ankle Joint Physiopathology Gait Hip Joint Knee Joint Adult Amputees Psychology Ankle Artificial Limbs Biomechanical Phenomena Extremities Physiology Humans Male Middle Aged Quality Of Life Range Of Motion, Articular Torso Walking Weight-bearing Journal Article
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Biophysics Sports Science

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Changes to level ground transtibial amputee gait with a weighted backpack.

Knee and hip internal moments and upper-body kinematics in the frontal plane in unilateral transtibial amputees.

The effects of walking speed and prosthetic ankle adapters on upper extremity dynamics and stability-related parameters in bilateral transtibial amputee gait.

The effects of prosthetic ankle dorsiflexion and energy return on below-knee amputee leg loading.

Energetic consequences of using a prosthesis with adaptive ankle motion during slope walking in persons with a transtibial amputation.

Stair ascent kinematics and kinetics with a powered lower leg system following transtibial amputation.

The effects of prosthetic ankle stiffness on ankle and knee kinematics, prosthetic limb loading, and net metabolic cost of trans-tibial amputee gait.

Trunk-pelvis motion, joint loads, and muscle forces during walking with a transtibial amputation.

Effect of alignment changes on socket reaction moments while walking in transtibial prostheses with energy storage and return feet.

Changes to transtibial amputee gait with a weighted backpack on multiple surfaces.

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Changes to transtibial amputee gait with a weighted backpack on multiple surfaces.