Are Wearable Insoles a Validated Tool for Quantifying Transfemoral Amputee Gait Asymmetry?
TypeArticles dans des revues avec comité de lecture
Background: Amputee gait is known to be asymmetrical, especially during loading of the lower limb. Monitoring asymmetry could be useful in quantifying patient performance during rehabilitation. Wearable insoles can provide normal ground reaction force asymmetry in real-life conditions. Objectives: To characterize the validity of Loadsol® insoles versus force plates in quantifying normal ground reaction force and gait asymmetry. To determine the influence walking speed has on loading asymmetry in transfemoral amputees. Study design: This is a prospective study. Methods: Six transfemoral amputees, wearing Loadsol® insoles, walked at three self-selected speeds on force plates. Validity was assessed by comparing normal ground reaction force data from the insoles and force plates. The Absolute Symmetry Index was used to calculate gait loading asymmetry at each speed. Results: Normalized root mean square errors for the normal ground reaction forces were 6.6% (standard deviation = 2.3%) and 8.9% (standard deviation = 3.8%); correlation coefficients were 0.91 and 0.95 for the prosthetic and intact limb, respectively. The mean error for Absolute Symmetry Index parameters ranged from -2.67% to 4.35%. Loading asymmetry increased with walking speed. Conclusion: This study quantified the validity of Loadsol® insoles in assessing loading asymmetry during gait in transfemoral amputees. The calibration protocol could be improved to better integrate it into a clinical setting. However, our results support the relevance of using such insoles during the clinical follow-up of transfemoral amputees. Clinical relevance: This is the first study to validate Loadsol® insoles versus force plates and report on loading asymmetry during gait at three different speeds in transfemoral amputees. Loadsol® insoles, which provide visual and audio feedback, are clinically easy to use and could have beneficial application in the amputee's rehabilitation and follow-up.
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Reliability quantification and gait loading asymmetry assessment with wearable insoles in transfemoral amputee people at different speeds LOIRET, Isabelle; VILLA, Coralie; DAURIAC, Boris; BONNET, Xavier; LAVASTE, François; MARTINET, Noël; PAYSANT, Jean; PILLET, Hélène (ELSEVIER, 2016)Introduction Amputee people have gait defaults, as for example loading asymmetry, which increase with daily living situations. Replication of realistic daily living environment in a motion analysis laboratory (MAL) is ...
Influence of physical capacities of males with transtibial amputation on gait adjustments on sloped surfaces LANGLOIS, Karine; VILLA, Coralie; BONNET, Xavier; LAVASTE, François; FODÉ, Pascale; MARTINET, Noël; PILLET, Hélène (JRRD, 2014)The aim of the study was to investigate how kinematic and kinetic adjustments between level and slope locomotion of persons with transtibial amputation are related to their individual muscular and functional capacities. A ...
DREVELLE, Xavier; VILLA, Coralie; BONNET, Xavier; LOIRET, Isabelle; FODÉ, Pascale; PILLET, Hélène (Elsevier, 2014)Background: Vaulting is a gait compensatory mechanism used by transfemoral amputees to assist toe clearance during the prosthetic swing phase. It is defined by a plantar flexion of the contralateral ankle during the ...
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Foot-flat Period Estimation During Daily Living Situations of Asymptomatic and Lower Limb Amputee Subjects DAURIAC, Boris; BONNET, Xavier; VILLA, Coralie; PILLET, Hélène; LAVASTE, François (Taylor & Francis, 2015)Walking in various situations is a challenging task for people with a lower limb amputation. Walking upslope and downslope requires a larger ankle range of motion than waking on a level ground. Most of prosthetic feet ...