Validation and reliability testing of a new, fully integrated gait analysis insole

Journal of Foot and Ankle Research

Tim Pohlemann²  Jörg Holstein²  Mika Rollmann²  Michael Roland³  Stefan Döbele¹  Rebecca Hell²  Nils Thomas Veith²  Benedikt Johannes Braun² 

[1] BG Trauma Center, Department of Trauma Surgery, Eberhard Karls University Tübingen, Tübingen, Germany;Department of Trauma, Hand and Reconstructive Surgery, Saarland University, Building 57, Kirrbergerstr. 1, Homburg, 66421, Germany;Saarland University, Chair of Applied Mechanics, Saarbruecken, Germany

关键词: Reliability;    Validation;    Integrated insole system;    Gait analysis;   

Others  :  1231221
DOI  :  10.1186/s13047-015-0111-8

 received in 2015-04-04, accepted in 2015-09-14,  发布年份 2015

【 摘 要 】

Background

A new tool (OpenGo, Moticon GmbH) was introduced to continuously measure kinetic and temporospatial gait parameters independently through an insole over up to 4 weeks. The goal of this study was to investigate the validity and reliability of this new insole system in a group of healthy individuals.

Methods

Gait data were collected from 12 healthy individuals on a treadmill at two different speeds. In total, six trials of three minutes each were performed by every participant. Validation was performed with the FDM-S System (Zebris). Complete sensor data were used for a within test reliability analysis of over 10000 steps. Intraclass correlation was calculated for different gait parameters and analysis of variance performed.

Results

Intraclass correlation for the validation was >0.796 for temporospatial and kinetic gait parameters. No statistical difference was seen between the insole and force plate measurements (difference between means: 36.3 ± 27.19 N; p = 0.19 and 0.027 ± 0.028 s; p = 0.36). Intraclass correlation for the reliability was >0.994 for all parameters measured.

Conclusion

The system is feasible for clinical trials that require step by step as well as grouped analysis of gait over a long period of time. Comparable validity and reliability to a stationary analysis tool has been shown.

【 授权许可】

   
2015 Braun et al.

【 图 表 】

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