| Unique ID issued by UMIN | UMIN000063084 |
|---|---|
| Receipt number | R000072217 |
| Scientific Title | Exploration of physical and respiratory function indicators using sensor fusion to quantify the risk of health loss and inform preventive interventions in older adults |
| Date of disclosure of the study information | 2026/10/01 |
| Last modified on | 2026/09/29 20:22:33 |
A study using a wearable sensor to measure vocalization frequency in older adults and examine its relationship with physical and respiratory function
Voice Tracking Study in Older Adults
Exploration of physical and respiratory function indicators using sensor fusion to quantify the risk of health loss and inform preventive interventions in older adults
Sensor-Fusion Vocalization Study
| Japan |
Healthy adults and community-dwelling older adults
| Geriatrics | Rehabilitation medicine | Adult |
Others
NO
To develop a wearable sensor-fusion device that extracts the frequency, duration, and intensity (sound pressure) of vocalization from vibration data, to verify its reliability, and to examine the relationships between daily vocalization and physical activity, physical function, and respiratory function in community-dwelling older adults.
Others
Study 1: In 10 healthy adults, the accuracy of distinguishing self-generated from others' vocalization and of separating chewing sounds from vocalization will be verified against video recordings. Study 2: In 6-10 community-dwelling older adults wearing the device during the daytime for 7 days, daily vocalization time, its association with physical activity, and sex differences will be examined. Conversation content will not be recorded or analyzed.
Exploratory
Others
Not applicable
Daily vocalization time measured by the device, and the reliability coefficient for distinguishing self-generated from others' vocalization against video recordings
Vocalization frequency, vocalization intensity (sound pressure), step count and physical activity, vocal capacity (maximum sound pressure, maximum phonation time), vital capacity, respiratory muscle strength (MIP, MEP), grip strength, skeletal muscle mass index (SMI), Tokyo Metropolitan Institute of Gerontology Index of Competence (TMIG-IC), device usability, and adverse events
Observational
| 18 | years-old | <= |
| 100 | years-old | > |
Male and Female
(1) Study 1: healthy adult students or staff of Shonan University of Medical Sciences (2) Study 2: community-dwelling older adults living in Kanagawa Prefecture, including residents of Senior Hotel Higashi-Totsuka South Wing, older adults living in Hadano City, and users of Kaze-no-Tani Rehabilitation Day Service (3) Individuals who provided written informed consent
(1) Severe joint pain in the limbs or trunk (2) Hemiplegia (3) Respiratory disorders (4) A physician's diagnosis of dementia (5) Difficulty understanding instructions
20
| 1st name | Yuji |
| Middle name | |
| Last name | Morio |
Shonan University of Medical Sciences
Department of Rehabilitation, Faculty of Medical Sciences
244-0806
16-48, Kamishinano, Totsuka-ku, Yokohama-ctiy, Kanagawa, JAPAN
+81-45-821-0111
yuji.morio@sums.ac.jp
| 1st name | Yuji |
| Middle name | |
| Last name | Morio |
Shonan University of Medical Sciences
Department of Rehabilitation, Faculty of Medical Sciences
244-0806
16-48, Kamishinano, Totsuka-ku, Yokohama-ctiy, Kanagawa, JAPAN
+81-45-821-0111
yuji.morio@sums.ac.jp
Shonan University of Medical Sciences
Yuji Morio
NSK Foundation for the Advancement of Mechatronics
Non profit foundation
Sasakawa Health Foundation
Research Ethics Committee of Shonan University of Medical Sciences
16-48, Kamishinano, Totsuka-ku, Yokohama-ctiy, Kanagawa, JAPAN
+81-45-821-0111
kenkyujimu@sums.ac.jp
YES
26-036
Research Ethics Committee of Shonan University of Medical Sciences
湘南医療大学、シニアホテル東戸塚サウスウイング、風の谷リハビリデイサービス/ Shonan University of Medical Sciences, Senior Hotel Higashi-Totsuka South Wing, Kaze-no-Tani Rehabilitation Day Service
| 2026 | Year | 10 | Month | 01 | Day |
Unpublished
Preinitiation
| 2026 | Year | 09 | Month | 15 | Day |
| 2026 | Year | 09 | Month | 15 | Day |
| 2026 | Year | 10 | Month | 01 | Day |
| 2029 | Year | 03 | Month | 31 | Day |
This study consists of two parts. Study 1 develops a wearable sensor-fusion device (M5Stack-based) and verifies its reliability; Study 2 examines its feasibility in community-dwelling older adults. The device processes only vibration amplitude data, and conversation content is neither recorded nor analyzed. In Study 1, conversations are video-recorded solely for accuracy verification, and the recordings are deleted promptly after verification. All measurement devices are removed in private spaces such as bathrooms and toilets. This approval (No. 26-036) also covers data analysis and publication for a preceding study (approval No. 24-029, UMIN000063074).
| 2026 | Year | 09 | Month | 28 | Day |
| 2026 | Year | 09 | Month | 29 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000072217