Relationship between Inertial features of the upper extremity and simple reaction time in boys and girls aged 17-18

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Authors
Gutnik, B.I.
Pankova, N. B.
Karganov, M.Yu.
Nash, Derek
Author ORCID Profiles (clickable)
Degree
Grantor
Date
2014
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Type
Journal Article
Ngā Upoko Tukutuku (Māori subject headings)
Keyword
rotational inertia
reaction time
boys
girls
ANZSRC Field of Research Code (2020)
Citation
Gutnik, B. I., Pankova, N. B., Karganov, N. Yu., and Nash, D. (2014). Relationship between Inertial features of the upper extremity and simple reaction time in boys and girls aged 17-18. Human Physiology, 40 (2), pp.132-139.
Abstract
The latent period of visual sensor motor reaction depends, in part, on the sensory and integrative processes in the brain, but is also influenced by the rate of the muscle contraction. There is no clear evidence in the literature whether the rotational inertia of segments of limbs has any direct effect on the reaction time. The aim of our study was to identify this relationship . The study involved 566 right handed students aged 16–17 of both genders beginning their post puberty period. Reaction time was measured during experimental adduction of the forearm and hand, using a special rotating handle and lever connected to a computer that recorded the reaction time (~1 ms). Calculations of the rotational inertia were carried out using regression models by Zatsiorsky and other authors. Each gender group was divided into three subgroups: with high, medium and low values of rotational inertia. It was found that individuals with high values of rotational inertia of forearm and wrist demonstrated significantly longer reaction times. This pattern was apparent in both gender groups. Although males illustrated greater values of rotational inertia than females they demonstrated relatively shorter reaction times. This contradiction can be explained by greater muscle power of young men. We recommend taking into account the amount of rotational inertia of the responsive segment in all kinds of research which require measurement of reaction time. The article was translated by the authors.
Publisher
Pleiades Publishing
Link to ePress publication
DOI
DOI: 10.1134/S0362119714020078
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Copyright notice
© Pleiades Publishing, Inc.,2014 Original Russian Text © B.I. Gutnik, N.B. Pankova, M.Yu. Karganov, D. Nash, 2014
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