Bioengineering System for Cardiorespiratory Biofeedback Control of Oscillatory Postural Load

Author(s):  
Nikolay B. Suvorov ◽  
Arlan F. Sagirov ◽  
Aleksei A. Anisimov ◽  
Timofey V. Sergeev
2018 ◽  
Vol 18 (2) ◽  
pp. 78-88
Author(s):  
N B Suvorov ◽  
T V Sergeev ◽  
I V Yarmosh

The technology of functional normalization of the cardiovascular system parameters by means of the alternating biofeedback on cardiac rhythm (cardiorespiratory training) with the use of a turning bed (verticalizer) is described, which allows to implement the oscillatory postural effects of ortho- and antiorthostatic nature automatically. Aim of the study. Increasing of application area of cardiorespiratory training due to the variety of options for biofeedback signals. Methods. The oscillation of the turning bed controlled by means of the parameters of heart rate variability sets for the examinee the order of alternation of the inspiration and expiration phases and the phases of the inspiration/expiration beginning. The method is available to patients with low vision, bedridden patients, early ages children; patients who are not able to understand the essence of the procedure. Results of researches. Positive dynamics of the test subjects’ functional state is, in particular, the normalization of activity of components of the autonomic nervous system; the reinstatement of the natural breathing pattern lost due to various reasons; increasing the variability of the heart rate; the cardiovascular system training due to moderate alternating ortho- and antiorthostatic load, estimated by number of physiological parameters.


1999 ◽  
Vol 49 (3) ◽  
pp. 275-281 ◽  
Author(s):  
Kouji SADA ◽  
Shingo HAMADA ◽  
Yoshiharu YONEZAWA ◽  
Ishio NINOMIYA

2021 ◽  
Vol 14 (1) ◽  
pp. 181
Author(s):  
Coral Oliver Hernández ◽  
Shimeng Li ◽  
María José Aguado Benedí ◽  
Inmaculada Mateo Rodríguez

Background: The automotive industry is heavily affected by sick leaves caused by the handling of loads and using postures that produce musculoskeletal disorders. Research is needed to analyse their causes and find possible solutions to eliminate or mitigate these risks. Objective: Our objective was to analyse the level of musculoskeletal risk in the different work tasks performed by truck and bus mechanics. Our intention is also to analyse whether postural training and feedback can help reduce risk. Methods: The rapid entire body assessment (REBA) was used to assess the postures performed by 35 mechanics from eight branches throughout Spain. The participants were subsequently divided randomly into two groups (experimental group and control group). The experimental group (EG) was given training and feedback on their postures and the control group (CG) was not offered any type of intervention. A few months after the initial assessment, their postural load in the usual tasks was re-evaluated. Results: An overall average REBA Score: 10.49 ± 1.33. The main risk was found in the trunk and arms with sustained above-the-head postures. EG’s second results are significantly improved compared to the first (p = 0.026 *). Conclusions: These jobs have a high-risk level of musculoskeletal disorders. The course of action presented with postural training and feedback has shown satisfactory results. Nevertheless, given the size of the sample, further research will be needed to delve deeper into this possibility as a future line of intervention.


2011 ◽  
Vol 3 (1) ◽  
pp. 59-62
Author(s):  
Lourdes Arce Espinoza ◽  
Julián Mónge-Najera

Los trabajos repetitivos que requieren esfuerzos considerables llegan a provocar alteraciones del aparato músculo-esquelético. Este tipo de enfermedades ocupacionales, altamente incapacitantes, ha ido en aumento en los últimos años, llegándose a considerar un problema de salud pública importante a nivel mundial. Para determinar el riesgo de sufrir alguna alteración de este tipo en tres departamentos de una universidad costarricense, hicimos un análisis de carga postural en 28 trabajadores con el método de Evaluación Rápida de Miembros Superiores (RULA por sus siglas en inglés). Todos los sujetos evaluados sufren una carga postural excesiva en brazo, antebrazo, cuello, espalda, piernas y muñeca, por lo que se requiere introducir cambios de manera urgente tanto en las posturas como en los puestos de trabajo. De América Latina se han publicado pocos estudios sobre este tema y aparentemente este es el primero que trata sobre personal universitario. 


2021 ◽  
Vol 11 (5) ◽  
pp. 213-222
Author(s):  
B. A. Lobasyuk ◽  
L. N. Akimova ◽  
A. N. Stoyanov ◽  
A. V. Zamkovaya

Rationale for choosing. An increase in physiological tremor (Tr) in emotionally saturated situations is reflected not only in fiction, but also in scientific literature. In other words, tremors and emotional responses are interconnected. Purpose. To investigate the reflection of individual-typological properties in a tremorogram using V. M. Rusalov’s mathematical modeling. Material and methods. Tr was recorded using a linear transducer. Tr was recorded under postural load (arms extended forward). The sensor was alternately placed on the outstretched right and left arms in front of oneself, under conditions of “eyes open” (operative rest). The analysis of the tremorogram (TrG) files was carried out after the end of the study using the "Analist - 2" software according to the half - period analysis algorithm. To study the individual psychological characteristics of the personality, we used the method of determining the properties of the temperament by V.M. Rusalov. Each of the many indicators of Rusalov’s test selected in the analysis was considered as a target feature (Y-s), and the amplitudes and frequencies of TrG were considered as influencing variables (sets of X - s) and multiple linear regression equations of the form were built: The parameters of the amplitude and frequency of EEG rhythms were used as Xs. Own research. In multiple regression analysis of the influence of TrG indices of the right hand on the indices of Rusalov’s test, 12 statistically significant regression coefficients were determined, and 11 statistically significant regression coefficients for the left hand. After obtaining the diagnostic equations of multiple linear regression, describing the influence of TrG indicators on the indicators of Rusalov’s test, an attempt was made, using these equations, to obtain the indicators of Rusalov’s test, using the tremor indicators. On average, the% discrepancy between the determined and predicted indicators was 97.42% for the right hand, and 101.98 for the left. Conclusions. 1. With the use of diagnostic equation, it was possible to predict the indicators of psychological testing according to Rusalov’s test by the indicators of tremor of the right and left hands.2. Influence of Rusalov’s test indicators on TrG indicators were less in modulus than the influence of TrG indicators on the indicators of Rusalov’s  test, i.e. did not participate in the control of the mechanisms of TrG generation.3. The results obtained indicate that tremor indicators contain information about the subject-activity and communicative aspects of temperament according to V. M. Rusalov.


2020 ◽  
Vol 89 ◽  
pp. 103188 ◽  
Author(s):  
Carl Mikael Lind ◽  
Liyun Yang ◽  
Farhad Abtahi ◽  
Lars Hanson ◽  
Kaj Lindecrantz ◽  
...  

2003 ◽  
Vol 32 (5) ◽  
pp. 309-317 ◽  
Author(s):  
Min K Chung ◽  
Inseok Lee ◽  
Dohyung Kee
Keyword(s):  

1976 ◽  
Vol 14 (3) ◽  
pp. 295-298 ◽  
Author(s):  
L. R. Dowdell ◽  
N. G. Clarke ◽  
B. J. Kardachi

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