UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059248
Receipt number R000067768
Scientific Title A Study on the Suppression of Spasticity by Vibration Stimulation
Date of disclosure of the study information 2025/09/30
Last modified on 2025/09/30 20:19:04

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Basic information

Public title

A Study on the Suppression of Spasticity by Vibration Stimulation

Acronym

A Study on the Suppression of Spasticity by Vibration Stimulation

Scientific Title

A Study on the Suppression of Spasticity by Vibration Stimulation

Scientific Title:Acronym

A Study on the Suppression of Spasticity by Vibration Stimulation

Region

Japan


Condition

Condition

stroke

Classification by specialty

Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Spasticity is defined as a velocity-dependent increase in muscle tone accompanied by hyperreflexia. Clinical findings include increased resistance during passive movement, hyperreflexia, and clonus. Spasticity is observed in many patients after cerebrovascular disorders and impedes activities of daily living, making appropriate spasticity assessment and treatment crucial. Vibration stimulation is one treatment for spasticity, with numerous reports on its efficacy. However, there is no consensus on optimal conditions such as frequency, amplitude, or duration of vibration stimulation. It is necessary to clarify effective stimulation conditions within a short timeframe.Many reports use the Modified Ashworth Scale (MAS) to assess the effectiveness of vibration stimulation, which involves judging the resistance felt when manually moving the target joint on a 6-point scale. However, the MAS procedure is ambiguous, and the low reliability of MAS evaluation results is a concern. Quantitative evaluation is necessary to appropriately assess spasticity and clarify treatment effects.The purpose of this study is to use quantitative evaluation to analyze in detail the spasticity-suppressing effects of vibration stimulation and to clarify the optimal stimulation settings.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Joint resistance torque during passive ankle dorsiflexion

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Single blind -investigator(s) and assessor(s) are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Device,equipment

Interventions/Control_1

Subjects capable of undergoing three-dimensional motion analysis and the 10m walking test shall undergo these gait assessments.
Measure the subject's maximum ankle dorsiflexion angle.
Position the subject in a reclining wheelchair and ensure they remain at rest.
The subject's posture shall be set with the hip joint at 45 degrees of flexion and the knee joint at 60 degrees of flexion.
Attach the iQMoS to the subject's foot.
Using the spasticity measurement device, move the subject's ankle joint twice each at low speed (5 degrees/second) and high speed (300degrees/second) up to the maximum dorsiflexion angle measured in step 1.
Remove the spasticity measurement device.
Condition 1: Apply low-frequency (30Hz), high-amplitude (2-4mm) vibration stimulation using the Power Plate pro5.
Immediately after vibration stimulation, repeat steps 1 through 6.
Subsequently, repeat steps 1 through 6 to confirm the duration of effect.

Interventions/Control_2

Subjects capable of undergoing three-dimensional motion analysis and the 10m walking test shall undergo these gait assessments.
Measure the subject's maximum ankle dorsiflexion angle.
Position the subject in a reclining wheelchair and ensure they remain at rest.
The subject's posture shall be set with the hip joint at 45 degrees of flexion and the knee joint at 60 degrees of flexion.
Attach the iQMoS to the subject's foot.
Using the spasticity measurement device, move the subject's ankle joint twice each at low speed (5 degrees/second) and high speed (300degrees/second) up to the maximum dorsiflexion angle measured in step 1.
Remove the spasticity measurement device.
Apply low-frequency (91Hz) vibration stimulation with an amplitude of 1.0mm using the Handheld Massager MD-001S
Immediately after vibration stimulation, repeat steps 1 through 6.
Subsequently, repeat steps 1 through 6 to confirm the duration of effect.

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Individuals who, after receiving full explanation and with full understanding, provided written consent of their own free will to participate in this study
Individuals diagnosed with central nervous system disorders

Key exclusion criteria

Individuals with unstable general condition
Individuals unable to understand instructions due to impaired consciousness or severe aphasia
Individuals with a history of orthopedic disorders in the ankle joint
Individuals with passive ankle dorsiflexion range of motion less than 0 degrees
Individuals deemed inappropriate by the principal investigator or co-investigator

Target sample size

180


Research contact person

Name of lead principal investigator

1st name Yohei
Middle name
Last name Otaka

Organization

Fujita Health University Hospital

Division name

Department of Rehabilitation Medicine

Zip code

4701192

Address

1-98, Danrakegakubo, Kutsukake-cho, Toyoake City, Aichi Prefecture

TEL

0562-93-2111

Email

otaka119@me.com


Public contact

Name of contact person

1st name Toshiki
Middle name
Last name Ito

Organization

Fujita Health University Hospital

Division name

Rehabilitation Department

Zip code

4701192

Address

1-98, Danrakegakubo, Kutsukake-cho, Toyoake City, Aichi Prefecture

TEL

0562-93-2111

Homepage URL


Email

toshiki.ito@fujita-hu.ac.jp


Sponsor or person

Institute

Fujita Health University

Institute

Department

Personal name



Funding Source

Organization

Fujita Health University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Fujita Health University Hospital

Address

1-98, Danrakegakubo, Kutsukake-cho, Toyoake City, Aichi Prefecture

Tel

0562-93-2111

Email

toshiki.ito@fujita-hu.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 09 Month 30 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Open public recruiting

Date of protocol fixation

2025 Year 05 Month 20 Day

Date of IRB

2025 Year 05 Month 20 Day

Anticipated trial start date

2025 Year 05 Month 20 Day

Last follow-up date

2030 Year 10 Month 05 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2025 Year 09 Month 30 Day

Last modified on

2025 Year 09 Month 30 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067768