None (Healthy participants)
Conditions
Interventions
Group 1: Variable vibration stimulation Participants received a 2-minute vibration stimulation while holding a dedicated device. The vibration started at a tempo corresponding to the participant'
s resting heart rate (e.g., 75 bpm) and gradually slowed down to either half of the initial heart rate or 50 bpm, whichever was higher.
Group 2: Fixed vibration stimulation Participants received a 2-
s resting heart rate or 50 bpm, whichever was higher.
Group 3: Control group (no stimulation) Participants held the dedicated vibration device for 2 minutes without receiving any vibration. They rest
Sponsors
POLA Chemical Industries, Inc.
Eligibility
Sex/Gender
Male
Inclusion criteria
Inclusion criteria: Healthy males aged 20 to 49 years Provided written informed consent after receiving sufficient explanation
Exclusion criteria
Exclusion criteria: Individuals with arrhythmia or cardiovascular disease Individuals taking medication for the above conditions Individuals weighing less than 30 kg or more than 100 kg Individuals using a cardiac pacemaker Individuals deemed unsuitable for participation in the study by the principal investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes in subjective stress indicators (Tense Arousal [TA] and Energetic Arousal [EA] scores) before and after the intervention | — |
Countries
Japan
Contacts
Public Contacttomomi kato
POLA Chemical Industries, Inc. Frontier Research Center
Outcome results
None listed