A Wireless Measurement System (M3D) for Three-Dimensional Gait Analysis System

PurposeThe purpose of this paper is to develop a versatile and extensible three-dimensional (3D) body measurement system.Design/methodology/approachAn integrated development environment and a script language compiler were designed for easy definition of measurement process.FindingsResearchers can do every kind of anthropometric research with respect to gender, age or race simply by writing appropriate scripts.Research limitations/implicationsSystem does not support the management of 3D data itself. The possible flaws of data should be removed by other hardware specific software.Practical implicationsResearchers without comprehensive knowledge of computer programming can conduct complex anthropometric research by simply learning the concise script language.Social implicationsThis system will facilitate many anthropometric research works and will help to provide valuable information to many industries.Originality/valueThis is the first script language based body data analysis system. The script language consists of about 60 simple commands. Researchers will be able to concentrate more on the research topic itself than on the painstaking computer programming.

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Correction: Feasibility of a Simplified, Clinically Oriented, Three-dimensional Gait Analysis System for the Gait Evaluation of Stroke Patients

Progress in Rehabilitation Medicine ◽

10.2490/prm.20160001e ◽

2016 ◽

Vol 1 (0) ◽

pp. n/a

Author(s):

Masahiko Mukaino ◽

Kei Ohtsuka ◽

Kazuhiro Tsuchiyama ◽

Fumihiro Matsuda ◽

Keisuke Inagaki ◽

...

Keyword(s):

Gait Analysis ◽

Three Dimensional ◽

Stroke Patients ◽

Analysis System

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Feasibility of a Simplified, Clinically Oriented, Three-dimensional Gait Analysis System for the Gait Evaluation of Stroke Patients

Progress in Rehabilitation Medicine ◽

10.2490/prm.20160001 ◽

2016 ◽

Vol 1 (0) ◽

pp. n/a ◽

Cited By ~ 1

Author(s):

Masahiko Mukaino ◽

Kei Ohtsuka ◽

Kazuhiro Tsuchiyama ◽

Fumihiro Matsuda ◽

Keisuke Inagaki ◽

...

Keyword(s):

Gait Analysis ◽

Three Dimensional ◽

Stroke Patients ◽

Analysis System

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Immediate Effects of Silicone Insoles on Gait Pattern in Patients with Flexible Flatfoot

Foot & Ankle International ◽

10.3113/fai.2007.1053 ◽

2007 ◽

Vol 28 (10) ◽

pp. 1053-1056 ◽

Cited By ~ 17

Author(s):

Duygu Geler Kulcu ◽

Gunes Yavuzer ◽

Sercan Sarmer ◽

Sureyya Ergin

Keyword(s):

Gait Analysis ◽

Sagittal Plane ◽

Three Dimensional ◽

Gait Pattern ◽

Over The Counter ◽

Video Recordings ◽

Relieve Pain ◽

Gait Parameters ◽

Flexible Flatfoot ◽

Analysis System

Background: Flatfoot in which a normal arch fails to develop is a common deformity in both children and adults. A frequently-used treatment is an over-the-counter insole to normalize foot mechanics and relieve pain. This study was designed to evaluate the effects of over-the-counter silicone insoles on the gait patterns of patients with flexible flatfoot. Methods: Thirty-four adults (24 women and nine men, average age 43.7 ± 9.7 years) with bilateral symptomatic flatfoot deformities were included in the study. Flatfoot was diagnosed by a lateral talometatarsal angle of more than 4 degrees and a talocalcaneal angle of more than 30 degrees. Three-dimensional gait analysis and video recordings were done at a single session. All patients walked at self-selected speeds over a 10-meter walkway with and without insoles. Time-distance parameters and kinematic and kinetic characteristics of gait in the sagittal plane were evaluated by a quantitative gait analysis system. Results: Mean lateral talometatarsal and talocalcaneal angles were 6.3 ± 2.5 degrees and 56.1 ± 8.6 degrees, respectively. There was no difference in gait parameters with or without the insoles. Conclusions: Over-the-counter insoles have no beneficial effect in normalizing forces acting on the foot and on the entire lower extremity in adults with flexible flatfoot.

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Comprehensive Validation of a Wearable Foot Sensor System for Estimating Spatiotemporal Gait Parameters by Simultaneous Three-Dimensional Optical Motion Analysis

10.21203/rs.3.rs-1035657/v1 ◽

2021 ◽

Author(s):

Kentaro Homan ◽

Keizo Yamamoto ◽

Ken Kadoya ◽

Naoki Ishida ◽

Norimasa Iwasaki

Keyword(s):

Gait Analysis ◽

High Speed ◽

Inertial Sensors ◽

Three Dimensional ◽

Scientific Basis ◽

The Body ◽

Gait Parameters ◽

Optical Motion ◽

Analysis System ◽

Two Parameters

Abstract Background Use of a wearable gait analysis system (WGAS) is becoming common when conducting gait analysis studies due to its versatility. At the same time, its versatility raises a concern about its accuracy, because its calculations rely on assumptions embedded in its algorithms. The purpose of the present study was to validate all spatiotemporal gait parameters calculated by the WGAS by comparison with simultaneous measurements taken with an optical motion capture system (OMCS). Methods Ten young healthy volunteers wore two inertial sensors of the commercially available WGAS, Physilog®, on their feet and 23 markers for the OMCS on the lower part of the body. The participants performed at least three sets of 10-m walk tests at their self-paced speed in the laboratory equipped with 12 high-speed digital cameras with embedded force plates. To measure repeatability, all participants returned for a second day of testing within two weeks. Results All gait parameters calculated by the WGAS had a significant correlation with the ones determined by the OMCS. Bland and Altman analysis showed that the between-device agreement for all gait parameters was within clinically acceptable limits. The validity of the gait parameters generated by the WGAS was found to be excellent except for two parameters, swing width and maximal heel clearance. The repeatability of the WGAS was excellent when measured between sessions. Conclusion The present study showed that spatiotemporal gait parameters estimated by the WGAS were reasonably accurate and repeatable in healthy young adults, providing a scientific basis for applying this system to clinical studies.

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