RU113131U1 - DEVICE FOR TEPPING TEST - Google Patents

Abstract

A device for carrying out a tapping test, including a sensor in the form of an electronic computing complex, consisting of a transformer, a key, a matching resistance, an analog-to-digital converter and a computer program, characterized in that the fixation of the time points corresponding to arbitrary movements of the fingers of the hand is carried out by pressing on the sensor with the fingers of the subject's hand with the maximum possible frequency and can be carried out both with free movement of the limb and with fixation of at least one joint of the subject's limb.

Description

The technical field to which the utility model relates.

The utility model relates to physiology, namely to the physiology of labor processes.

State of the art

A person’s motor activity occurs during voluntary movements, and also manifests itself in the field of concomitant vegetative processes. In the coordination skills of a person, an essential role is played by patterns associated with age-related characteristics and depending on the nature of work.

It is known that there are: a method for diagnosing fine motor skills of the hand (Grigal P.P., Khorseva NI. Method for diagnosing fine motor skills of the hand. Patent of the Russian Federation for invention No. 2314743 of 01.20.2008), a device for conducting a tapping test (Prokopyev N A device for conducting a tapping test. - RF patent for utility model No. 65365 dated 08/10/2007), computer method of fine motor skills (Grigal P.P., Khorseva N.I. ten-finger chaotic tapping: age features of fine motor skills children // Transactions of MIPT. 2009. V. 1, No. 1. S. 46-52).

A device for conducting a tapping test was selected as a prototype (N. Prokopyev. Device for conducting a tapping test. - RF patent for utility model No. 65365 of 08/10/2007).

The authors proposed a device for assessing the functional state of the nervous system, consisting of a steel metal plate electrically connected together, an electronic scoreboard and a marker, which is a sharp metal probe.

However, this device has some disadvantages:

- when using protopil during a human examination, it is possible to conduct only a general assessment of the state of the nervous system;

- there is no way to assess the level of development of fine motor skills of the fingers;

- the marker is made in the form of a sharp metal probe, which does not allow using it for research involving children and people with increased skin and muscle-joint sensitivity.

Utility Model Disclosure

The objective of the utility model is to increase the reliability of diagnosis of the functional state of the central nervous system in the study of the periodization of sensorimotor performance and fatigue.

The technical result is to increase the information content of the assessment of the motor skills of the fingers, non-invasiveness of the study with the simplicity of identifying the activity of the neuromuscular apparatus in ontogenesis under the influence of labor activity.

Brief Description of the Drawings

Figure 1 shows a diagram of a device for conducting a tapping test: 1 - transformer; 2 - key; 3 - resistor; 4 - analog-to-digital Converter; 5 - computer program; 6 - computer.

The implementation of the invention

A device for conducting a tapping test consists of a step-down transformer, a key, matching resistance with a nominal value of 15 kOhm, an analog-to-digital converter, and a computer program. The transformer is used to reduce the voltage of 220 V to a voltage safe for humans of 9 V and to ensure galvanic isolation of the electronic circuits of the measuring system from the common network. Closing and opening the key translates the A / D converter into two different states. A digital signal is read by an analog-to-digital converter and a program that carries out its final processing and analysis of signals. In the process of processing a digital signal, the program captures moments of time corresponding to the fact of opening the key of the measuring system. Based on the data obtained, the values of the following values are calculated: the number of the given key closure, the closure time, the time elapsed from the previous closure. The time is taken to start the current measurement session.

The utility model is illustrated by the following examples:

Example 1. Subject I. - age from 17 years, somatically healthy, no chronic diseases. An examination of the fine motor skills of the fingers for experimental purposes. Informed consent obtained. During the examination, the subject was in a sitting position, his right hand was located on a support so that the angle between the shoulder and forearm was 90 degrees. In this case, the wrist joint and palm were fixed by the cuff. The registration of rhythmic processes (at least 120 movements) by pressing fingers on the sensor with the maximum frequency was carried out using a computer program, followed by automatic analysis of the corresponding curves and calculation of their parameters. The measurement results (duration of the motor cycle in seconds, the frequency of the test in movements per second) were entered into a special file with further automatic calculation of statistical and correlation parameters. First, the temporal parameters of motor cycles are a curve where cycles with a duration of 0.1 to 0.15 seconds are noted. Then there is an increase in the time of motor cycles from 0.16 to 0.22 seconds, which indicates a beginning slowdown in the rhythm of the movement and indicates a developing process of neuromuscular fatigue and determines the possibility of an individual analysis of the periodic processes of voluntary movements.

Claims (1)

A device for conducting a tapping test, including a sensor in the form of an electronic computer complex, consisting of a transformer, a key, matching resistance, an analog-to-digital converter and a computer program, characterized in that the fixing of time points corresponding to arbitrary movements of the fingers is carried out by pressing to the sensor with the fingers of the subject’s hand with the maximum possible frequency and can be carried out both with free movement of the limb, and with fixing at least one joint to finiteness of the subject.