Authors:
Ivan Miguel Pires
1
;
Diogo Marques
2
;
Nuno Pombo
3
;
Nuno M. Garcia
3
;
Mário C. Marques
4
and
Francisco Flórez-Revuelta
5
Affiliations:
1
Universidade da Beira Interior, Altranportugal and ALLab - Assisted Living Computing and Telecommunications Laboratory, Portugal
;
2
Universidade da Beira Interior, Portugal
;
3
Universidade da Beira Interior, ALLab - Assisted Living Computing and Telecommunications Laboratory and Universidade Lusófona de Humanidades e Tecnologias, Portugal
;
4
Universidade da Beira Interior, Research Centre in Sport and Health and Human Development, Portugal
;
5
Universidad de Alicante, Spain
Keyword(s):
Reaction Time, Accelerometer, Mobile Devices, 30-S Chair Stand Test, Elderly People.
Abstract:
The 30-s Chair Stand Test (CST) is commonly used with elderly people for assessing the lower limbs strength, which can provide sufficient information regarding the general mobility and fall risk. The mobile devices are widely used for the acquisition of the different physical and physiological data from the sensors available, including the accelerometer. In this way, the aim of the present study consisted on the development of an automatic method for the measurement of the reaction time (RT) based on the 30-s CST using a mobile device. Besides that, the data acquisition through an accelerometer allows the assessment of different variables, such as the maximum values of the acceleration, the instant velocity, the maximum force and the peak power, that may contribute to a better understanding of the physical demands during the 30-s CST performance. The results presented in this study demonstrated that the calculation of the RT and the different variables during the 30-s CST performance
is possible, opening new possibilities for the development of scientific projects, namely those that encompasses the motor and cognitive training of elderly people.
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