Triaxial joint moment estimation using a wearable three-dimensional gait analysis system

Measurement ◽  
2014 ◽  
Vol 47 ◽  
pp. 125-129 ◽  
Author(s):  
T. Liu ◽  
Y. Inoue ◽  
K. Shibata ◽  
K. Shiojima ◽  
M.M. Han
Keyword(s):  
Gait Analysis ◽  
Three Dimensional ◽  
Joint Moment ◽  
Moment Estimation ◽  
Analysis System

scholarly journals Low-cost three-dimensional gait analysis system for mice with an infrared depth sensor

2015 ◽  
Vol 100 ◽  
pp. 55-62 ◽  
Author(s):  
Akihiro Nakamura ◽  
Hiroyuki Funaya ◽  
Naohiro Uezono ◽  
Kinichi Nakashima ◽  
Yasumasa Ishida ◽  
...  
Keyword(s):  
Gait Analysis ◽  
Low Cost ◽  
Three Dimensional ◽  
Depth Sensor ◽  
Analysis System

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

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

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

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

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

2007 ◽  
Vol 28 (10) ◽  
pp. 1053-1056 ◽  
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.

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

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.

scholarly journals Maneuverability of the Scope and Instruments within Three Different Single-Incision Laparoscopic Ports: An Experimental Pilot Study

Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1242
Author(s):  
Georg Haider ◽  
Ursula Schulz ◽  
Nikola Katic ◽  
Christian Peham ◽  
Gilles Dupré
Keyword(s):  
Motion Analysis ◽  
Single Incision ◽  
Single Port ◽  
Three Dimensional ◽  
Analysis Software ◽  
Port Access ◽  
Port System ◽  
Sils Port ◽  
Glove Port ◽  
Analysis System

Single-port access systems (SPASs) are currently used in human and veterinary surgeries. However, they pose technical challenges, such as instrument crowding, intra- and extracorporeal instrument collision, and reduced maneuverability. Studies comparing the maneuverability of the scopes and instruments in different SPASs are lacking. This study aimed to compare the maneuverability of three different SPASs: the Covidien SILS-port, Storz Endocone, and glove port. A clear acrylic box with artificial skin placed at the bottom was used to mimic the abdominal wall and cavity. The three SPASs were placed from below, and a 10-mm endoscope and 5-mm instrument were introduced. A motion analysis system consisting of 18 cameras and motion analysis software were used to track the movement of the endoscope and instrument, to determine the volume of the cone-shaped, three-dimensional figures over which movement was possible, with higher values indicating greater maneuverability. The Mann–Whitney U test was used for the analysis. The maneuverability of the endoscope alone was significantly higher in the glove port system than in the other two SPASs. When inserting an additional instrument, the maneuverability significantly decreased in the SILS-port and Endocone, but not in the glove port. The highest maneuverability overall was found in the glove port.

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