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Technol Health Care. 2017 Oct 23;25(5):939-948. doi: 10.3233/THC-170927.

Intrapersonal and interpersonal evaluation of upper extremity kinematics.

Author information

1
Department of Biomechanics, Faculty of Mechanics, Vilnius Gediminas Technical University, Vilnius, Lithuania.
2
Department of PM&R, Faculty of Medicine, University of Vilnius, Vilnius, Lithuania.
3
Coventry University, Coventry, UK.
4
Department of Theoretical Electrotechnics and Metrology, Bialystok University of Technology, Bialystok, Poland.

Abstract

BACKGROUND:

The quality of upper extremity (UE) function can be evaluated by measuring the kinematic parameters of patient movements.

OBJECTIVE:

This investigation focused on finding the angles and angular velocity amplitudes of UE motions in healthy participants to compare with the experimental results of patients with a UE disability who are trying to recover previous movement conditions.

METHODS:

The UE motions of 23 healthy adult volunteers were tested using a three-dimensional motion capture system and measuring hand segment motions. A simplified 7 degrees of freedom (DOF) human arm kinematic model created within MATLAB and used to process the experimental data.

RESULTS:

The interpersonal CV (coefficients of variability) of left-side motions showed that the lowest CV of linear velocity amplitudes was at elbow flexion (4.2%), but the highest was at wrist extension (48.3%). The lowest and highest CV of angular velocity amplitudes were 19.6% and 55.7%, during shoulder adduction and wrist extension, respectively.

CONCLUSIONS:

High interpersonal CV may restrict the direct comparison of kinematic parameters of UE in different healthy and disabled persons.

KEYWORDS:

Upper extremity; biomechanics; kinematic human hand model; motion capture system; objective evaluation

PMID:
29103062
DOI:
10.3233/THC-170927
[Indexed for MEDLINE]

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