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WO2024162829A1 - Dispositif de relaxation musculaire utilisant une fréquence de signal de commande musculaire et méthode de relaxation musculaire l'utilisant - Google Patents

Dispositif de relaxation musculaire utilisant une fréquence de signal de commande musculaire et méthode de relaxation musculaire l'utilisant Download PDF

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WO2024162829A1
WO2024162829A1 PCT/KR2024/001630 KR2024001630W WO2024162829A1 WO 2024162829 A1 WO2024162829 A1 WO 2024162829A1 KR 2024001630 W KR2024001630 W KR 2024001630W WO 2024162829 A1 WO2024162829 A1 WO 2024162829A1
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muscle
stimulation
frequency
unit
electrical stimulation
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English (en)
Korean (ko)
Inventor
이동열
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Koreatech Co Ltd
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Koreatech Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/389—Electromyography [EMG]
    • A61B5/397—Analysis of electromyograms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H23/00—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms
    • A61H23/02—Percussion or vibration massage, e.g. using supersonic vibration; Suction-vibration massage; Massage with moving diaphragms with electric or magnetic drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation

Definitions

  • the present invention relates to a muscle relaxation device using a muscle control signal frequency and a muscle relaxation method using the same. Specifically, the present invention relates to a device for relaxing a muscle by applying an electrical stimulation of the same frequency as a muscle control signal to the muscle in reverse, and a muscle relaxation method using the same.
  • Electrical musculoskeletal therapy can be divided into i) controlling pain and ii) strengthening paralyzed or weak muscles by contracting them, depending on the frequency, type of current, and intensity.
  • Transcutaneous electrical nerve stimulation (hereinafter referred to as 'TENS'), a pain control method using electricity, is commonly used in two methods: high-frequency (50 Hz to 100 Hz) - low-intensity (10 mA to 30 mA) TENS and low-frequency (0.5 Hz to 10 Hz or less) - high-intensity (30 mA to 80 mA) TENS.
  • high-frequency - low-intensity TENS high-frequency (50 Hz to 100 Hz) - low-intensity (10 mA to 30 mA) TENS and low-frequency (0.5 Hz to 10 Hz or less) - high-intensity (30 mA to 80 mA) TENS.
  • the primary pain-control effect of high-frequency - low-intensity TENS is known to be due to the Gait control theory.
  • Low-frequency, high-intensity TENS can repeatedly stimulate motor neurons to repeatedly contract or myospasm muscles.
  • Low-frequency, high-intensity TENS can also repeatedly stimulate the pain receptor A-delta nerves to produce sharp pain. This is because by intentionally producing sharp pain, other pain can be modulated.
  • low-frequency, high-intensity TENS can stimulate the production and release of endogenous opioids.
  • FES Functional electrical stimulation
  • NMES neuromuscular electrical stimulation
  • FES or NMES can induce myospasm, which is a muscle contraction that occurs individually and continuously within the muscle, and as the frequency used increases, the distance between the parts where the myospasm occurs can become closer.
  • Conventional FES or NMES generally use a frequency of 25 Hz to 50 Hz. However, the higher the frequency, the more motor units are mobilized, which easily causes muscle fatigue. Therefore, in order to reduce neuromuscular fatigue at the neuromuscular junction (NMJ) level, it is necessary to apply the frequency by appropriately limiting it.
  • NMJ neuromuscular junction
  • Figure 1 is explanatory material for the general effect according to the frequency of electrical stimulation.
  • electrical stimulation can be divided into low frequency of 1 Hz to 1,000 Hz, medium frequency of 1,000 Hz to 10,000 Hz, and high frequency of 100,000 Hz or more according to frequency.
  • the frequency of electrical stimulation for muscle contraction is generally within the range of 100 Hz, and the closer it is to 100 Hz, the stronger the muscle contracts.
  • High-frequency currents of 100,000 Hz or more generate a thermal effect.
  • muscle contraction is also weak and fatigue also decreases.
  • pain (stinging) due to electrical stimulation may increase.
  • Each individual with musculoskeletal pain has different muscle contraction and fatigue levels, and thus different muscle control signal frequencies.
  • stimulating with fixed frequencies of conventional classifications such as low, medium, and high frequencies as described in Figure 1, consistent stimulation can be provided, but the degree of effect may vary from individual to individual. Rather, it may be more desirable to stimulate with a frequency tailored to each individual.
  • the definition of a frequency tailored to each individual was not clear.
  • the inventor of the present invention obtained bio-information indicating the action potential of the user's muscles in order to observe stimulation according to a frequency tailored to each individual, and then derived the muscle control signal frequency from this. When the same frequency as the muscle control signal frequency was applied to the user, it was observed that the range of motion of the joint actually increased, and thus it was discovered that muscles could be relaxed through electrical stimulation, and thus the present invention was completed.
  • Conventional electrical musculoskeletal therapy is based on the principle of contracting or relaxing muscles. This is used to control pain or increase blood circulation through muscle contraction.
  • the present invention is intended to solve the above problems, and aims to provide a muscle relaxation device using electrical stimulation and a muscle relaxation method using the same.
  • the purpose is to provide a muscle relaxation device using a muscle control signal frequency that can reduce pain felt by a user and increase the range of motion of the muscle by actually relaxing the muscle, unlike conventional electrical stimulators such as low-frequency treatment devices, and a muscle relaxation method using the same.
  • the present invention provides a muscle relaxation device including an electrical signal measuring unit that obtains action potentials of a user's muscles, an electrical stimulation applying unit that applies electrical stimulation to the user's muscles, and a control unit that transmits information about the action potentials to the electrical stimulation applying unit.
  • the present invention provides a muscle relaxation device including an electric signal measuring unit that obtains action potentials of a user's muscles, a vibration stimulation applying unit that applies vibration stimulation to the user's muscles, and a control unit that transmits information about the action potentials to the vibration stimulation applying unit.
  • the present invention provides a muscle relaxation device including an electrical signal measurement unit that obtains action potentials of a user's muscles, an electrical stimulation application unit that applies electrical stimulation to the user's muscles, a vibration stimulation application unit that applies vibration stimulation to the user's muscles, and a control unit that transmits information about the action potentials to the electrical stimulation application unit and the vibration stimulation application unit.
  • the above electric signal measuring unit may include two electrodes and a voltage measuring unit that measures the action potential of a muscle between the two electrodes.
  • the above electric signal measurement unit or the control unit may include an analysis unit that analyzes the waveform of the voltage measured from the voltage measurement unit.
  • the information on the above action potential may be a muscle control signal frequency obtained by measuring a muscle signal frequency based on muscle activity when the user rests or contracts a specific muscle, or a frequency greater than 40% and less than 200% of the muscle control signal frequency.
  • the above-mentioned electrical stimulation unit may include an electrical waveform generator that can generate an electrical stimulation using information about the action potential received from the control unit and transmit the same to the user's muscles. At this time, the electrical stimulation is in the form of an electrical waveform.
  • An electrode pad for applying electrical stimulation to the user's muscles may be added, and the electrode pad may include an electrode portion including a conductive material at a portion in contact with the user's skin, and an electrode terminal connected to the electrical stimulation applying portion at an opposite surface of the electrode portion.
  • a vibrator for applying a vibration stimulus to the user's muscles may be added, and the vibration stimulus applying unit may include a vibration waveform signal generator that can generate a vibration frequency using information about the action potential and transmit the same to the vibrator.
  • the vibrator may be replaced with a speaker vibration unit that can generate vibration by sound waves, or a speaker vibration unit may be further added.
  • the vibrator may be placed on the upper surface or side of the muscle area to which the user applies the vibrational stimulation.
  • the vibrator may be placed on the upper surface or side of the area to which the electrical stimulation is applied to the muscle.
  • the above electric stimulation and the above vibration stimulation may have the same frequency or may have a phase difference.
  • the frequency of the above vibration stimulation may be an integer multiple of the frequency of the above electric stimulation.
  • the frequency of the electrical stimulation may be greater than 40% and less than 200% of the frequency of the muscle control signal, and the frequency of the vibration stimulation may be the same as or different from the frequency of the muscle control signal and may be greater than 40% and less than 200% of the frequency of the muscle control signal.
  • the frequency of the electric stimulation of the muscle relaxation device according to the present invention is 1 Hz to 200 Hz, the output for the electric stimulation is a maximum of 100 mA, and the frequency pulse duration for the electric stimulation is 50 ⁇ s to 300 ⁇ s.
  • the present invention may also include, in a muscle relaxation method, 1) a step of using an electric signal measurement unit to measure a muscle signal frequency based on muscle activity when the user relaxes or contracts a specific muscle, 2) a step of obtaining a muscle control signal frequency from the information of step 1), 3) a step of transmitting the muscle control signal frequency to the electric stimulation application unit, and 4) a step of the electric stimulation application unit applying an electric stimulation to the user's muscle.
  • the present invention may also include, in a muscle relaxation method, 1) a step of measuring a muscle signal frequency based on muscle activity when the user relaxes or contracts a specific muscle using an electric signal measuring unit, 2) a step of obtaining a muscle control signal frequency from the information of step 1), 3) a step of transmitting the muscle control signal frequency to a vibration stimulation applying unit, and 4) a step of applying a vibration stimulation to the user's muscles by the vibration stimulation applying unit.
  • the present invention may also include, in a muscle relaxation method, 1) a step of measuring a muscle signal frequency based on muscle activity when the user relaxes or contracts a specific muscle using an electric signal measuring unit, 2) a step of obtaining a muscle control signal frequency from the information of step 1), 3) a step of transmitting the muscle control signal frequency to an electric stimulation applying unit and a vibration stimulation applying unit, and 4) a step of applying an electric stimulation and a vibration stimulation to the user's muscles by the electric stimulation applying unit and the vibration stimulation applying unit.
  • step 4 actual electrical stimulation can be applied through electrode pads attached to the user.
  • actual vibration stimulation can be applied through a vibrator.
  • the frequency of the electrical stimulation applied in the above step 4) may be greater than 40% and less than 200% of the frequency of the muscle control signal, and the frequency of the vibration stimulation applied in the above step 4) may be greater than 40% and less than 200% of the frequency of the muscle control signal.
  • the target muscle may be a group of muscles that perform the same movement.
  • the wrist extensor muscle which controls the extension of the wrist itself, is considered as a single target muscle.
  • the wrist extensor muscle is composed of four muscles, but all of these perform the movement of extending the wrist itself, so they are considered as one target muscle.
  • the relaxation device according to the present invention When the relaxation device according to the present invention is used to relax muscles, fatigue recovery, joint motion range, wrinkles, fatigue recovery (hot water effect), etc. may occur.
  • muscle spasms may be reduced, pain caused by excessive muscle tension may be reduced, tension in joint structures surrounding muscles may be relieved, skeletal muscle defense may be reduced, flexibility may be increased, and joint motion range may be improved.
  • the present invention can provide means for solving the above problems by combining them in any possible way.
  • the present invention can provide a muscle relaxation device using electrical stimulation and a muscle relaxation method using the same.
  • a muscle relaxation device using a muscle control signal frequency and a muscle relaxation method using the same can be provided.
  • the present invention can i) relax a user's muscles through electrical stimulation, ii) reduce the pain of electrical stimulation felt by the user, and iii) increase the range of motion of the muscles by substantially relaxing the muscles, unlike conventional low-frequency treatment devices.
  • Figure 1 is an explanatory material on general effects according to the frequency of electrical stimulation.
  • Figure 2 is a schematic diagram showing the configuration of a muscle relaxation device according to one embodiment of the present invention.
  • Figure 3 shows the experimental results on changes in neck rotation angle after application of personalized frequency electrical stimulation.
  • Figure 4 shows the experimental results on the change in the lateral cervical bending angle after application of personalized frequency electrical stimulation.
  • Figure 5 shows the experimental results on changes in the pressure pain threshold of the upper trapezius muscle after application of personalized frequency electrical stimulation.
  • Figure 6 shows the experimental results for changes in central frequency after application of personalized frequency electrical stimulation.
  • Figure 7 shows the results of a satisfaction survey after application of personalized frequency electrical stimulation.
  • Figure 8 shows the pain threshold, joint range of motion, median frequency difference, and satisfaction survey method according to stimulation type.
  • FIGS 9 to 12 show the experimental results of pressure pain threshold (PPT), neck rotation angle (Rotation), neck side-bending, and central frequency in the resting state (Rest), respectively.
  • PPT pressure pain threshold
  • Rotation neck rotation angle
  • Rintation neck side-bending
  • Rest central frequency in the resting state
  • Figure 13 shows the experimental results for the motion of holding dumbbells
  • Figure 14 shows the experimental results when not holding dumbbells.
  • Figure 15 shows an experimental method for changes in pressure pain threshold (PPT), side-bending of the neck, muscle tone, and muscle stiffness according to differences in the frequency of electrical stimulation.
  • PPT pressure pain threshold
  • Figure 16 shows the experimental results of pressure pain threshold (PPT), side-bending of the neck, muscle tone, and muscle stiffness.
  • PPT pressure pain threshold
  • Fig. 2 is a schematic diagram showing the configuration of a muscle relaxation device according to one embodiment of the present invention.
  • a muscle relaxation device including an electrical signal measurement unit that obtains an action potential of a user's muscle, an electrical stimulation application unit that applies an electrical stimulation to the user's muscle, and a control unit that transmits information about the action potential to the electrical stimulation application unit.
  • the present invention provides a muscle relaxation device having a vibration stimulation application unit that applies vibration stimulation to the user's muscles, and the control unit also transmits information about the action potential to the vibration stimulation application unit.
  • FIG. 2 discloses a device capable of simultaneously applying electrical stimulation and vibration stimulation, this is only an example and can be modified into a device capable of applying only electrical stimulation or only vibration stimulation.
  • the above electric signal measuring unit may include two electrodes, a voltage measuring unit that measures the action potential of a muscle between the two electrodes, and an analysis unit that analyzes the waveform of the voltage measured from the voltage measuring unit.
  • Obtaining the frequency from the above bio-information may be by measuring the muscle signal frequency based on the muscle activity when the user rests or contracts a specific muscle and obtaining the frequency therefrom.
  • the frequency obtained here is the muscle control signal frequency.
  • the electric stimulation unit may include an electric frequency generator capable of generating an electric frequency identical to the frequency received from the control unit and transmitting the same to the electrode pad.
  • the above electrode pad may include an electrode part including a conductive material in a portion that comes into contact with the user's skin, and an electrode terminal connected to an electrode of the frequency generator on the opposite surface of the electrode part.
  • the above vibration stimulation unit may include a vibration frequency generator capable of generating a vibration frequency identical to the frequency received from the control unit and transmitting the same to the vibrator.
  • the above control unit can provide the same or different frequencies to the electric stimulation applying unit and the vibration stimulation applying unit, respectively.
  • the control unit can provide a muscle control signal frequency or a frequency that is more than 40% and less than 200% of the muscle control signal frequency.
  • the above vibrator can be placed on the upper surface or side of the electrode pad.
  • the above electric signal measuring unit includes two electrodes, a voltage measuring unit that measures the action potential of a muscle between the two electrodes, and an analysis unit that analyzes the waveform of the voltage measured from the voltage measuring unit.
  • Muscle control signal frequency must be acquired for the muscle for relaxation (hereinafter referred to as 'target muscle'). It is desirable that the target muscle be a group of muscles that perform the same movement.
  • An example of a target muscle is the wrist extensor.
  • the muscle that controls the extension of the wrist itself is the wrist extensor, and in detail, the wrist extensor is composed of four muscles, but all of them perform the movement for the extension of the wrist itself, so they are regarded as a target muscle that is a group of muscles that perform one movement.
  • the muscle control signal frequency is specifically obtained through the following steps.
  • the user is asked to contract or rest the target muscle for 10 seconds.
  • the electromyogram which is an electrical signal generated in the nerves and muscles while the user contracts or rests the target muscle for 10 seconds, is measured and stored.
  • the 10 seconds above are an example, and can be selected from 1 second to 10 minutes. If the measurement is made for less than 1 second, the amount of data to be sampled may be insufficient, and if it continues for more than 10 minutes, muscle fatigue may accumulate as the muscle continues to contract, and there is a concern that the frequency of the muscle control signal itself may fluctuate at the beginning and end of the electromyogram measurement. Meanwhile, if the degree of muscle contraction by the user is divided into three stages of strong, medium, and weak, it is preferable to proceed with the medium stage.
  • a filter may be applied at the measurement stage so that only the main signal frequency band of the muscle passes without measuring all signals, or may be applied to step d) below after the measurement.
  • measuring the electromyogram is measuring surface electromyogram (SEM).
  • the set time may vary depending on the analysis, but is preferably 0.1 to 10 seconds.
  • Noise removal can be done by applying a conventional noise filter, but since it is an electrical signal, it is desirable to remove high-frequency noise. Noise can also be applied by rectification, which converts negative EMG signal amplitude into positive amplitude, and smoothing, which removes EMG signals that cannot be reproduced due to arbitrary properties of EMG. Noise removal can be performed before step c).
  • step f) Calculate the arithmetic mean for the median values obtained in step e).
  • the arithmetic mean value thus obtained is set as the muscle control signal frequency.
  • the frequency of the muscle control signal and the neck rotation angle were measured through the shoulder-raising movement of the subjects before receiving electrical stimulation using equipment based on a 3-axis sensor.
  • the subjects received electrical stimulation with a frequency of 25 Hz and electrical stimulation with the same frequency as the muscle control signal frequency measured through the shoulder-raising movement (pulse duration was 300 sec, intensity was fixed at 37.5 mA) for 15 minutes each.
  • the order of the electrical stimulation was randomized, and each electrical stimulation was performed with a time difference of one day.
  • the neck rotation angles of the subjects were re-measured after the electrical stimulation.
  • the neck rotation angle actually decreased by an average of 3.35 degrees.
  • the frequency of the muscle control signal and the neck rotation angle were measured through the shoulder raising movement of the subjects before receiving electrical stimulation using equipment based on a 3-axis sensor.
  • the subjects received electrical stimulation with a frequency of 25 Hz and electrical stimulation with the same frequency as the muscle control signal frequency measured through the shoulder raising movement (pulse duration was 300 s, intensity was fixed at 37.5 mA) for 15 minutes each.
  • the order of the electrical stimulation was randomized, and each electrical stimulation was performed with a time difference of one day.
  • the subjects' neck lateral flexion angles were re-measured after the electrical stimulation.
  • the cervical lateral bending angle actually decreased by an average of 2.17 degrees.
  • the muscle control signal frequency and the pressure pain threshold of the trapezius muscle were measured through the shoulder raising movement of the subjects. The higher the pressure pain threshold, the stronger the stimulation must be applied to feel pain.
  • the subjects received electrical stimulation with a frequency of 25 Hz and electrical stimulation with the same frequency as the muscle control signal frequency measured through the shoulder raising movement (pulse duration was 300 s, intensity was fixed at 37.5 mA) for 15 minutes each.
  • the order of the electrical stimulation was randomized, and each electrical stimulation was performed with a time difference of one day.
  • the subjects' pressure pain threshold of the trapezius muscle was remeasured after the electrical stimulation.
  • the pressure pain threshold In the case of receiving electrical stimulation at a fixed frequency (25 Hz), the pressure pain threshold actually decreased by an average of 0.15 kgf. Since the pressure pain threshold increases when the muscle is relaxed, it can be seen that when the muscle control signal frequency according to the present invention is applied, the muscle actually relaxes.
  • the muscle control signal frequency was measured through the shoulder-raising movement of the subjects before receiving electrical stimulation.
  • the central frequency according to the method 1) above was measured when the subjects were holding dumbbells before receiving electrical stimulation.
  • the subjects received electrical stimulation with a frequency of 25 Hz and electrical stimulation with the same frequency as the muscle control signal frequency measured through the shoulder-raising movement (pulse duration was 300 sec, intensity was fixed at 37.5 mA) for 15 minutes each.
  • the order of the electrical stimulation was randomized, and each electrical stimulation was performed with a time difference of one day.
  • the central frequency according to the method 1) above was re-measured when the subjects were holding dumbbells after the electrical stimulation.
  • the muscle control signal frequency (Indi Hz) is different for each individual and is expressed as Indi Hz.
  • the central frequency showed a decrease of 1.90 Hz, and when they received electrical stimulation of the muscle control signal frequency measured through the shoulder raising movement (Indi Hz), the central frequency did not change significantly by about 0.93 Hz compared to before receiving the stimulation.
  • the degree of muscle contraction is considered strong.
  • the frequency of the muscle control signal measured through the shoulder-raising movement of the subjects before receiving electrical stimulation was measured.
  • the subjects received electrical stimulation with a frequency of 25 Hz and electrical stimulation with the same frequency as the muscle control signal frequency measured through the shoulder-raising movement (pulse duration was 300 sec, intensity was fixed at 37.5 mA) for 15 minutes each.
  • the order of the electrical stimulation was random, and each electrical stimulation was performed with a time difference of one day.
  • the subjects were surveyed on the electrical sensation, massage intensity, pain level, stiffness, and overall satisfaction.
  • the muscle control signal frequency (Indi Hz) is different for each individual and is expressed as Indi Hz.
  • the subjects felt greater electrical sensation and massage intensity when they received electrical stimulation at the muscle control signal frequency measured through shoulder lifting movements (Indi Hz) rather than the general 25 Hz electrical stimulation. This caused them to feel a higher level of pain, but after the stimulation, they felt that the stiffness was reduced further and the muscles were more relaxed.
  • the overall satisfaction was found to be higher when the electrical stimulation was at a frequency tailored to the individual.
  • Figure 8 shows the pain threshold, joint range of motion, difference in central frequency, and satisfaction survey method according to stimulation type.
  • the pain threshold, neck rotation and lateral bending, changes in central frequency, and differences in satisfaction were examined when vibration stimulation (vibration), ready-made electrode stimulation products (clock), and muscle control signal frequency measured through shoulder lifting movements and vibration application (electricity + vibration).
  • the muscle control signal frequency, pressure pain threshold (PPT), neck rotation and side-bending range of motion were measured through the subjects' shoulder lifting movement.
  • the subjects received vibrator, clock, and vibrator stimulation combined with electrical stimulation (pulse duration was fixed at 300 s, intensity was 37.5 mA) of the muscle control signal frequency measured through the shoulder lifting movement for 15 minutes each.
  • the order of stimulation was random, and each stimulation was performed with a time difference of one day.
  • the satisfaction level was surveyed immediately after each stimulation, and the subjects' median frequency, pressure pain threshold, and range of motion were re-measured after stimulation.
  • Tables 3 to 6 and Figures 9 to 12 show the experimental results of pressure pain threshold (PPT), neck rotation angle (Rotation), neck side-bending, and central frequency in the resting state (Rest), respectively.
  • the pressure threshold increased by 0.06 kgf when stimulated by vibration only (Vib), decreased by 0.15 kgf when stimulated by the ready-made Klug product (Klug), and increased by 0.34 kgf when stimulated by both electrical and vibration (ESV).
  • the neck rotation angle increased by 0.20 degrees when stimulated by vibration only (Vid), decreased by 2.98 degrees when stimulated by the ready-made Klug product (Klug), and increased by 11.91 degrees when stimulated by both electrical and vibration (ESV).
  • the neck lateral flexion angle increased by 1.44 degrees when stimulated by vibration only (Vib), decreased by 0.67 degrees when stimulated by the ready-made Klug product (Klug), and increased by 7.47 degrees when stimulated by both electrical and vibration (ESV).
  • the central frequency in the resting state increased by 12.68 Hz when only vibration was stimulated (Vib), decreased by 3.03 Hz when the ready-made clock product was stimulated (Klug), and decreased by 6.09 Hz when both electrical stimulation and vibration stimulation were applied (ESV).
  • the central frequency was measured according to the method 1) in the above-mentioned 7) method in the action of holding dumbbells.
  • Table 7 and Figure 13 show the experimental results for the motion of holding dumbbells, and Figure 14 shows the experimental results when not holding dumbbells.
  • the median frequency in the dumbbell lifting motion increased by 2.01 Hz when stimulated only with vibration (Vib), by 4.24 Hz when stimulated with a ready-made clock product (Klug), and by 3.41 Hz when stimulated with both electrical and vibration stimulation (ESV).
  • Type 2 fibers are muscle fibers that contract quickly and strongly but are vulnerable to fatigue.
  • Fig. 16 shows the experimental results for this.
  • Fig. 16 shows the results of the pressure pain threshold, neck lateral bending, muscle tension, and muscle stiffness before and after frequency application.
  • the pain threshold was most improved by 9.7% after receiving electrical stimulation at a frequency corresponding to 1.6 times the muscle control signal frequency.
  • Neck lateral flexion was most improved by 7.0% after receiving electrical stimulation matching the muscle control signal frequency.
  • Muscle tone and muscle stiffness were most reduced by -2.0% and -3.8%, respectively, after receiving electrical stimulation at a frequency corresponding to 0.6 times the muscle control signal frequency.

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Abstract

La présente invention concerne en particulier un dispositif de relaxation musculaire par application d'une stimulation électrique sur la base de la même fréquence que le signal de commande musculaire à des muscles en sens inverse, et une méthode de relaxation musculaire l'utilisant. Grâce au dispositif et à la méthode, la présente invention permet de : (i) relaxer les muscles de l'utilisateur par stimulation électrique, (ii) réduire la douleur de stimulation électrique perçue par l'utilisateur, et (iii) relaxer sensiblement les muscles pour augmenter la plage de mouvement, contrairement aux dispositifs de thérapie à basse fréquence classiques.
PCT/KR2024/001630 2023-02-02 2024-02-02 Dispositif de relaxation musculaire utilisant une fréquence de signal de commande musculaire et méthode de relaxation musculaire l'utilisant Ceased WO2024162829A1 (fr)

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KR1020230014489A KR102595944B1 (ko) 2023-02-02 2023-02-02 근육제어신호 주파수를 이용한 근육 이완장치 및 이를 이용한 근육 이완방법
KR10-2023-0014489 2023-02-02

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101302268B1 (ko) * 2012-04-18 2013-09-02 경성대학교 산학협력단 근육의 수축 또는 이완시 발생하는 근활성도의 변화를 이용하여 신체에 진동 자극을 제공하는 방법
WO2015080409A1 (fr) * 2013-11-29 2015-06-04 문찬곤 Dispositif de mesure de biosignal et de stimulation électrique utilisant une structure de treillis
US20200139106A1 (en) * 2014-07-10 2020-05-07 Eric Chen Wireless electrical stimulation system
KR20210004496A (ko) * 2019-07-05 2021-01-13 주식회사 에이션랩 근육 자극 장치, 근육 자극 패드 및 근육 자극 시스템과 이를 이용한 근육 자극 방법
KR102482763B1 (ko) * 2022-04-18 2022-12-29 고등기술연구원연구조합 전기활성반응 슈트 및 전기활성반응 슈트를 이용하여 근력 지원하는 기능성 전기자극반응 방법

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KR102473277B1 (ko) * 2020-10-22 2022-12-05 고려대학교 산학협력단 사용자 피로도 기반의 기능적 전기자극과 진동자극 제어시스템 및 제어방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101302268B1 (ko) * 2012-04-18 2013-09-02 경성대학교 산학협력단 근육의 수축 또는 이완시 발생하는 근활성도의 변화를 이용하여 신체에 진동 자극을 제공하는 방법
WO2015080409A1 (fr) * 2013-11-29 2015-06-04 문찬곤 Dispositif de mesure de biosignal et de stimulation électrique utilisant une structure de treillis
US20200139106A1 (en) * 2014-07-10 2020-05-07 Eric Chen Wireless electrical stimulation system
KR20210004496A (ko) * 2019-07-05 2021-01-13 주식회사 에이션랩 근육 자극 장치, 근육 자극 패드 및 근육 자극 시스템과 이를 이용한 근육 자극 방법
KR102482763B1 (ko) * 2022-04-18 2022-12-29 고등기술연구원연구조합 전기활성반응 슈트 및 전기활성반응 슈트를 이용하여 근력 지원하는 기능성 전기자극반응 방법

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