Effects of radiofrequency irradiation of the periscapular muscles of patients with subjective shoulder stiffness symptoms on muscle hardness and subjective stiffness intensity of the same muscles

Effects of radiofrequency irradiation of the periscapular muscles of patients with subjective shoulder stiffness symptoms on muscle hardness and subjective stiffness intensity of the same muscles - Effect of radiofrequency irradiation of periscapular muscles on muscle hardness and subjective shoulder stiffness intensity

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000050611

Enrollment

Registered

2023-03-16

Start date

2023-03-16

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neck/shoulder discomfort

Interventions

Eight Colicorans (dummy), which does not emit high frequency, is worn for 5 hours. Eight ColiCorans that emit high frequency are worn for 5 hours.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (i) Those who are at least 18 years old and less than 30 years old at the time of obtaining consent. (ii) Have no history of orthopedic disease or surgery on the shoulder joint or surrounding muscles and ligaments other than shoulder stiffness (iii) Persons who can give written consent to participate in this study (iv) Those who have shoulder stiffness of 2 or greater intensity on the NRS at the time consent is obtained.

Exclusion criteria

Exclusion criteria: (i) Those who have a conflict of interest, such as the relationship between the person in charge of the research and the research subject being a faculty member and a student, and the student attending the lectures of the person in charge of the research. (ii) Persons who have developed a skin rash from the adhesive tape (during the pre-confirmation stage) (iii) Pregnant women or those who may become pregnant (iv) Persons who are using implanted medical electrical equipment such as pacemakers or wearable medical electrical equipment such as electrocardiographs (v) Persons who fall under any of the precautions listed in the instruction manual that "require consultation with a physician upon use" (acute illness, malignant tumor, skin disease, anemia, peripheral nerve disorder, menstruation, pregnancy) (6) Other persons who are deemed inappropriate by the principal investigator or research assistant.

Design outcomes

Primary

Measure	Time frame
Comparison of change in muscle hardness before and after wearing CoriCoran with that of the dummy and this product	—

Secondary

Measure	Time frame
Comparison of NRS change before and after Coricoran installation with dummy installation and with this product	—

Countries

Japan

Contacts

Public ContactNoriaki Maeda

Hiroshima University Graduate School of Biomedical and Health Sciences

norimmi@hiroshima-u.ac.jp082-257-5410

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026