Tokyo, Sept. 24 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000063028) titled 'Acute Effects of Massage Chair Use on Peripheral Blood Flow in Postmenopausal Women' on Sept. 23.

Study Type: Interventional

Study Design: Basic Design - Cross-over Randomization - Randomized Blinding - Open -no one is blinded Control - No treatment

Primary Sponsor: Institute - Hiroshima University

Condition: Condition - Postmenopausal women Classification by malignancy - Others Genomic information - NO

Objective: Narrative objectives1 - The purpose of this study is to quantitatively evaluate the acute effects of standardized whole-body massage chair stimulation on peripheral microcirculation in postmenopausal women using two-dimensional laser blood flow imaging. In particular, temporal changes in cutaneous microvascular blood flow at the volar forearm and anterior lower leg will be evaluated before the intervention and from immediately after the intervention to 30 min after its completion. Basic objectives2 - Efficacy

Intervention: Interventions/Control_1 - In Period 1, participants undergo a 20-min whole-body massage chair condition. A commercially available whole-body massage chair is used with a standardized automatic program including back-roller kneading, tapping, combined kneading and tapping, and airbag compression of the lower limbs, feet, waist, shoulders, and upper limbs. Stimulation intensity is set at a moderate level perceived by the participant as sufficiently stimulating but not excessively strong and is kept constant within each participant. The heater function is not used. After a washout period of at least 48 h, participants undergo a 20-min resting control condition in Period 2. During the control condition, participants remain seated in the same massage chair without activation of the roller or airbag functions. Interventions/Control_2 - In Period 1, participants undergo a 20-min resting control condition while seated in the same massage chair without activation of the roller or airbag functions. After a washout period of at least 48 h, participants undergo the 20-min whole-body massage chair condition in Period 2. The massage chair procedures and stimulation settings are identical to those described for Intervention 1.

Eligibility: Age-lower limit - 50 years-old = Gender - Female Key inclusion criteria - 1. Women aged 50-69 years. 2. Postmenopausal women who have experienced no menstruation for at least 12 months. 3. Individuals who understand the study procedures and are able to provide written informed consent. Key exclusion criteria - 1. Individuals who have been advised by a physician to restrict the use of massage devices. 2. Individuals with severe cardiovascular disease or severe arrhythmia. 3. Individuals with acute inflammation, wounds, or severe pain in the lower limbs or measurement sites. 4. Individuals judged by the principal investigator to be unable to safely undergo the intervention. Target Size - 30

Recruitment Status: Recruitment status - Preinitiation Date of protocol fixation - 2026 Year 01 Month 09 Day Date of IRB - 2026 Year 01 Month 08 Day Anticipated trial start date - 2026 Year 09 Month 24 Day Last follow-up date - 2026 Year 10 Month 31 Day

To know more, visit https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072152

Disclaimer: Curated by HT Syndication.