Verification of the Effect of Oral Stimulation Duration via Ice Massage on Activation of Brain Regions Related to Swallowing

Verification of the Effect of Oral Stimulation Duration via Ice Massage on Activation of Brain Regions Related to Swallowing - Verification of the Relationship between Oral Cooling Stimulation Duration and Brain Activation Effects

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059978

Enrollment

Registered

2025-12-05

Start date

2025-12-08

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

dysphagia

Interventions

Intraoral ice massage using an intraoral cooling device (Ice Stick)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Adults aged 18 to 60 inclusive who consented to participate in this study

Exclusion criteria

Exclusion criteria: A history of cerebral infarction or head and neck treatment, or other neurological conditions that may impair swallowing function, either currently present or in the past. Cognitive impairment that prevents following instructions.

Design outcomes

Primary

Measure	Time frame
Changes in Oxy-Hb concentration during fNIRS in the continuous saliva swallowing test following intraoral ice massage	—

Secondary

Measure	Time frame
Number of swallows, latency of first swallow, and subjective ease of swallow during the continuous saliva swallowing test following intraoral ice massage	—

Countries

Japan

Contacts

Public ContactMASAYUKI Tazawa

Gunma Univesity graduate school of medicine Rehabilitation medicine

mastaz1@gunma-u.ac.jp0272578655

Outcome results

None listed

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