A study to evaluate the effects of Kanshoho for people with chronic whiplash_associated disorder(WAD)

Interventional Effects of Kanshoho on Patients with Sequelae of Cervical Sprain - KANS_CSP

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCT1070250094

Enrollment

Registered

2025-11-11

Start date

2025-07-16

Completion date

Unknown

Last updated

2025-12-08

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

Conditions

Sequelae of Cervical Sprain (Chronic Whiplash-Associated Disorder) Cervical sprain, whiplash injury, chronic neck pain, chronic pain, Kanshoho, manual therapy

Interventions

Manual therapy (Kanshoho) A single-session manual relaxation technique targeting skeletal muscles and tendons. The therapist applies approximately 500 g of perpendicular finger pressure to the muscle,

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Patients with whiplash-associated disorder (WAD) whose symptoms have persisted for more than 6 months without organic abnormalities. 2. Outpatients of *Shin Orthopedic Rehabilitation & Sports Clinic* who provide written informed consent to participate. 3. Judged eligible for participation by the attending physician.

Exclusion criteria

Exclusion criteria: * Patients currently undergoing treatment for underlying diseases. * Individuals deemed unsuitable by the attending physician due to excessive physical or mental burden. * Individuals judged inappropriate by the principal investigator. * Employees and family members of the Japan Health Organization or Shin Orthopedic Rehabilitation & Sports Clinic.

Design outcomes

Primary

Measure	Time frame
Change in pain intensity (VAS score) before and after the intervention. Pain intensity is assessed using a 100-mm visual analogue scale (VAS) by a physician, and the difference between pre- and post-intervention scores is used as the primary outcome. Time frame: Pre- and post-intervention (same day).	—

Secondary

Measure	Time frame
1.Change in cervical range of motion (ROM)_flexion, extension, rotation, and lateral flexion, measured according to the 1995 criteria of the Japanese Orthopaedic Association and Japanese Association of Rehabilitation Medicine. 2.Changes in ultrasound findings_morphological alterations and echo intensity of the muscles and tendons at the treated sites. 3.Duration of intervention_time (minutes) required until pain disappearance (maximum 20 min). Time frame: Pre- and post-intervention (same day).	—

Measure

Time frame

1.Change in cervical range of motion (ROM)_flexion, extension, rotation, and lateral flexion, measured according to the 1995 criteria of the Japanese Orthopaedic Association and Japanese Association of Rehabilitation Medicine. 2.Changes in ultrasound findings_morphological alterations and echo intensity of the muscles and tendons at the treated sites. 3.Duration of intervention_time (minutes) required until pain disappearance (maximum 20 min). Time frame: Pre- and post-intervention (same day).

—

Contacts

Public ContactTakashi Sakato

Japan Health Organization (Non-profit)

sakatobni@gmail.com+81-362310858

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Feb 4, 2026