Measurement of finger joint angles and maximum finger forces during cylinder grip activity

Lee, J.W.; Rim, Kwan

doi:10.1016/0141-5425(91)90062-c

Cited by 85 publications

(76 citation statements)

References 14 publications

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“…In such an action, the fingers act in parallel and the forces acting on the object are easier to measure and quantify (Kinoshita et al 1995, 1996a, Santello and Soechting 2000, Rearick and Santello 2002, Shim et al 2003,b, 2005a. While several previous studies have addressed the manipulation of circular objects (Amis 1987, Lee and Rim 1991, Radhakrishnan and Nagaravindra 1993, Kinoshita et al 1996b, Shih and Wang 1997, Fowler and Nicol 1999, they mainly focused on the resultant force/moment (Fowler andNicol 1999, Voorbij andSteenbekkers 2002), single-digit force exerted on the object (Fowler and Nicol 1999) or the force production without a twisting action (Kinoshita et al 1996b). …”

Section: Introductionmentioning

confidence: 99%

Multi-digit maximum voluntary torque production on a circular object

et al. 2007

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Individual digit-tip forces and moments during torque production on a mechanically fixed circular object were studied. During the experiments, subjects positioned each digit on a 6-dimensional force/ moment sensor attached to a circular handle and produced a maximum voluntary torque on the handle. The torque direction and the orientation of the torque axis were varied. From this study, it is concluded that: (1) the maximum torque in the closing (clockwise) direction was larger than in the opening (counter clockwise) direction; (2) the thumb and little finger had the largest and the smallest share of both total normal force and total moment, respectively; (3) the sharing of total moment between individual digits was not affected by the orientation of the torque axis or by the torque direction, while the sharing of total normal force between the individual digit varied with torque direction; (4) the normal force safety margins were largest and smallest in the thumb and little finger, respectively.

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Section: Introductionmentioning

confidence: 99%

Multi-digit maximum voluntary torque production on a circular object

et al. 2007

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“…[2][3][4][5][6] Many of these techniques do not allow for the simultaneous measurement of all DoFs or do not use the PJRAs to express the angles. Furthermore, it is usually desirable that the measuring technique does not interfere with the normal development of the hand activities.…”

Section: Introductionmentioning

confidence: 99%

Validity of a simple videogrammetric method to measure the movement of all hand segments for clinical purposes

Sancho-Bru

Jarque-Bou

Vergara

et al. 2014

Proc Inst Mech Eng H

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Hand movement measurement is important in clinical, ergonomics and biomechanical fields. Videogrammetric techniques allow the measurement of hand movement without interfering the natural hand behaviour. However, an accurate measurement of the hand movement requires the use of a high number of markers, which limits its applicability for the clinical practice (60 markers would be needed for hand and wrist).In this work, a simple method that uses a reduced number of markers (29), based on a simplified kinematic model of the hand, is proposed and evaluated. A set of experiments has been performed to evaluate the errors associated to the kinematic simplification, together with the evaluation of its accuracy, repeatability and reproducibility. The global error attributed to the kinematic simplification was 6.68º.The method has small errors in repeatability and reproducibility (3.43º and 4.23º, respectively) and shows no statistically significant difference with the use of electronic goniometers. The relevance of the work lies in the ability of measuring all degrees of freedom of the hand with a reduced number of markers without interfering the natural hand behaviour, which makes it suitable for its use in clinical applications, as well as for ergonomic and biomechanical purposes.

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“…From this point of view, the optimal method is image processing, but such measurements require complex equipment and high computing capacity for the post-processing. Literature sources often do not provide details on the measurement device applied and its possible effects on the natural motion of finger joints [9], [12], [16], [20]. Furthermore, publications addressing the accuracy of joint motion measurements [3], [4], [5], [11], [15] do not provide detailed information on the quantitative analysis of the motion of metacarpophalangeal and interphalangeal articulations.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Three Different Phalangeal Motion Measurement Systems and Determination of the Functional Range of Motion

2016

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SummaryThe main contribution of this paper is the introduction of three different devices for measuring the flexion of phalangeal articulations. The devices described in the study are suitable for the determination of the active 1 and the functional range of motion (ROM) of finger joints. In the paper, multiple measurements are reported in order to determine the maximum and minimum values of the active and the functional range of motion of phalangeal articulations and to validate the proper operation of the measurement devices. The first measurement method was based on the post factum image processing of video recordings, while the second and the third method used devices that were attached to the finger and equipped with analogue and digital sensors, which is similar to a miniature goniometer with a computer interface. The results showed that people only use 79-82% of the active range of motion of phalangeal articulations. Additionally, there was a 6% difference between the current measurement results and the data available from previously reported measurements. The current study also aims at finding the cause of this anomaly. Comparative analysis of the measurement results provides a basis for the future development of an actuator that would be used in a multiple finger gripper mechanism suitable for rehabilitation purposes.

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Measurement of finger joint angles and maximum finger forces during cylinder grip activity

Cited by 85 publications

References 14 publications

Multi-digit maximum voluntary torque production on a circular object

Multi-digit maximum voluntary torque production on a circular object

Validity of a simple videogrammetric method to measure the movement of all hand segments for clinical purposes

Evaluation of Three Different Phalangeal Motion Measurement Systems and Determination of the Functional Range of Motion

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