Strain Gauged Six-Component Load Transducer for use in Upper Limb Biomechanics

1993 ◽  
Vol 207 (4) ◽  
pp. 231-237 ◽  
Author(s):  
R J Runciman ◽  
A C Nicol
Keyword(s):  
Upper Limb ◽  
Measurement Accuracy ◽  
Laboratory Coordinate System ◽  
Position Measurement ◽  
System Calibration ◽  
Design Load ◽  
Applied Loading ◽  
Limb Loading ◽  
Load Transducer ◽  
Analysis System

A six-channel instrumented load transducer has been developed for measuring hand and upper limb loading (maximum design load, 2 kN). Modular in design, the transducer can be adapted to a variety of formats, thereby increasing the range of activities to which it can be applied. When used with a motion analysis system, hand loading can be determined with respect to a laboratory coordinate system irrespective of transducer orientation and position. Measurement accuracy of approximately ± 1 per cent of applied loading has been determined through a system calibration.

scholarly journals Modifying Kinect placement to improve upper limb joint angle measurement accuracy

2016 ◽  
Vol 29 (4) ◽  
pp. 465-473 ◽  
Author(s):  
Na Jin Seo ◽  
Mojtaba F. Fathi ◽  
Pilwon Hur ◽  
Vincent Crocher
Keyword(s):  
Upper Limb ◽  
Measurement Accuracy ◽  
Joint Angle ◽  
Angle Measurement

scholarly journals Upper Limb Portable Motion Analysis System Based on Inertial Technology for Neurorehabilitation Purposes

Sensors ◽  
2010 ◽  
Vol 10 (12) ◽  
pp. 10733-10751 ◽  
Author(s):  
Rodrigo Pérez ◽  
Úrsula Costa ◽  
Marc Torrent ◽  
Javier Solana ◽  
Eloy Opisso ◽  
...  
Keyword(s):  
Motion Analysis ◽  
Upper Limb ◽  
Motion Analysis System ◽  
Analysis System

The Relationship between Consistency of Propulsive Cycles and Maximum Angular Velocity during Wheelchair Racing

2008 ◽  
Vol 24 (3) ◽  
pp. 280-287 ◽  
Author(s):  
Yong “Tai” Wang ◽  
Konstantinos Dino Vrongistinos ◽  
Dali Xu
Keyword(s):  
Angular Velocity ◽  
Upper Limb ◽  
Wheelchair Propulsion ◽  
Upper Arm ◽  
Wheelchair Athletes ◽  
Angular Velocities ◽  
Limb Kinematics ◽  
Analysis System ◽  
The Right ◽  
The Relationship

The purposes of this study were to examine the consistency of wheelchair athletes’ upper-limb kinematics in consecutive propulsive cycles and to investigate the relationship between the maximum angular velocities of the upper arm and forearm and the consistency of the upper-limb kinematical pattern. Eleven elite international wheelchair racers propelled their own chairs on a roller while performing maximum speeds during wheelchair propulsion. A Qualisys motion analysis system was used to film the wheelchair propulsive cycles. Six reflective markers placed on the right shoulder, elbow, wrist joints, metacarpal, wheel axis, and wheel were automatically digitized. The deviations in cycle time, upper-arm and forearm angles, and angular velocities among these propulsive cycles were analyzed. The results demonstrated that in the consecutive cycles of wheelchair propulsion the increased maximum angular velocity may lead to increased variability in the upper-limb angular kinematics. It is speculated that this increased variability may be important for the distribution of load on different upper-extremity muscles to avoid the fatigue during wheelchair racing.

Technique effects on upper limb loading in the tennis serve

2003 ◽  
Vol 6 (1) ◽  
pp. 76-87 ◽  
Author(s):  
B Elliott ◽  
G Fleisig ◽  
R Nicholls ◽  
R Escamilia
Keyword(s):  
Upper Limb ◽  
Limb Loading ◽  
Tennis Serve

Relationships between Upper Limb Loading, Physical Findings, and Discomfort Associated with Keyboard Use

2001 ◽  
Vol 45 (14) ◽  
pp. 1087-1091
Author(s):  
Brian D. Lowe ◽  
J. Steven Moore ◽  
Naomi Swanson ◽  
Lisa Perez ◽  
Margit Alderson
Keyword(s):  
Upper Limb ◽  
Limb Loading ◽  
Physical Findings

Study on Motion Measurement of Human Upper Limb Based on Electromagnetic Tracking System during the Activities of Daily Living

2013 ◽  
Vol 321-324 ◽  
pp. 684-687 ◽  
Author(s):  
Hai Yan Song ◽  
Jian Guo Zhang ◽  
Fang Wang
Keyword(s):  
Activities Of Daily Living ◽  
Upper Limb ◽  
Daily Living ◽  
Tracking System ◽  
Human Motion ◽  
Electromagnetic Tracking ◽  
Chinese Adult ◽  
Analysis System ◽  
Electromagnetic Tracking System ◽  
Human Upper Limb

The measurement and analysis of human motion during the Activities of Daily Living (ADLs) is widely used in rehabilitation, ergonomics, diagnosis, and bionics etc. By using American PolhemusTMelectromagnetic tracking system, the human upper limb motions of 6 objects performing 12 basic actions of ADLs were measured. Then the joint angle ranges of human upper limb were obtained by upper limb motion analysis system developed by ourselves. The results can provide reference for complete, standardized Chinese adult human upper limb kinematics parameters.

Paraspinal muscle responses during sudden upper limb loading

2002 ◽  
Vol 88 (1-2) ◽  
pp. 42-49 ◽  
Author(s):  
Ville Leinonen ◽  
Markku Kankaanpää ◽  
Osmo Hänninen ◽  
Olavi Airaksinen ◽  
Simo Taimela
Keyword(s):  
Upper Limb ◽  
Paraspinal Muscle ◽  
Limb Loading ◽  
Muscle Responses

S1601-2-4 Biomechanical analysis system of upper limb during pitching using body-mounted sensor

2009 ◽  
Vol 2009.5 (0) ◽  
pp. 185-186
Author(s):  
Hideharu KODA ◽  
Koichi SAGAWA ◽  
Kouta KUROSHIMA ◽  
Toshiaki TSUKAMOTO ◽  
Kazutaka URITA ◽  
...  
Keyword(s):  
Upper Limb ◽  
Biomechanical Analysis ◽  
Analysis System

Self-Sensing in Fault Tolerant Magnetic Bearings

1999 ◽  
Author(s):  
Dominick Montie ◽  
Eric Maslen
Keyword(s):  
Measurement Accuracy ◽  
Fault Tolerant ◽  
Failure Mechanisms ◽  
Magnetic Bearing ◽  
Magnetic Bearings ◽  
Position Measurement ◽  
Sensors And Actuators ◽  
Convergence Control ◽  
Fault Tolerant Systems ◽  
Fault State

Several schemes have recently been proposed for achieving either fault tolerance or self-sensing in magnetic bearings. The present work describes the fundamental connection between ability to actuate and ability to sense in a partially failed magnetic bearing system. This relationship is then exploited to construct a self-sensing scheme which operates in the presence of detectable actuator or amplifier faults. Such an approach is advantageous in fault tolerant systems because it reduces or eliminates the need to address potential independent failure mechanisms in sensors and actuators. Based on a model reference parameter estimation mechanism, the self-sensing scheme is shown to provide acceptable position measurement accuracy and bandwidth under various actuator/amplifier faults which are actuator tolerable. Estimates of increase in noise floor and loss of bandwidth under fault conditions are provided. The issue of estimator convergence under fault conditions is examined in detail with comments on implementation complexity arising from scheduling convergence control on fault state.

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