A kinematic and electromyographic study of grip force

Martin-Martin, Jaime & Cuesta-Vargas, Antonio I. (2014) A kinematic and electromyographic study of grip force. European Journal of Physiotherapy, 16(3), pp. 183-191.

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Abstract

Background

The hand is an element of great importance to humans, as it enables us to have different grips. Its analysis, based on an accelerometer and electromyography, is critical in order to determine its operation. The processing and analysis of variables obtained by these devices offer a different approach in functional assessment. Therefore, knowledge of the muscles and elements of the hand in the grip force will offer a better approach for different interventions.

Method

The functionality of the hand of seven healthy subjects was parameterized and synchronized in real time based on grip force. The AcceleGlove was used to register accelerometric (fingers and palm) values and the Mega ME6000 was used for the surface electromyography and maximum voluntary contraction for the hand and forearm muscles. A computer script based on “R” and MATLAB software was developed to enable the correct interpretation of the main variables (variation of acceleration and maximum peak value of electromyography).

Results

The muscles of greater activity in grip was found in the hypothenar region (0.313 ± 0.148%) and the flexor ulnaris carpi (0.360 ± 0.118%), based on maximum voluntary contraction. Reference values in the module vector of the palm have proved an essential element for the identification of the movement phases. The ring and index fingers were the elements with the greatest variation of acceleration in the movement phases. Conclusion: Parameterization of the force grip and fragmentation of the registered data has been made possible due to the development of a technical procedure.

Impact and interest:

1 citations in Scopus
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ID Code: 85598
Item Type: Journal Article
Refereed: No
Keywords: assessment, hand, movement, muscles, sensors
DOI: 10.3109/21679169.2014.917436
ISSN: 2167-9177
Divisions: Current > Schools > School of Clinical Sciences
Current > QUT Faculties and Divisions > Faculty of Health
Deposited On: 17 Jul 2015 01:30
Last Modified: 20 Jul 2015 00:51

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