臨床研究等提出・公開システム

Intervention research using mobile applications to prevent frailty in the early elderly: Single case study

Frailty prevention research for the elderly

7

Seven older women participated in this study. The mean age was 69.9 +/- 3.2 years and the mean body mass index (BMI) was 22.5 +/- 3.4 kg/m2. One participant (14.3%) was classified as pre-frail. The mean score on the Japanese version of the HLS-EU-Q47 was 25.9 +/- 5.2, and all participants were categorized as having insufficient health literacy. The mean handgrip strength was 22.8 +/- 1.5 kg, and the mean walking speed was 1.3 +/- 0.2 m/s.

Seven community-dwelling older women with insufficient health literacy were enrolled in the study. All participants completed the study, and no participants withdrew during the study period. Therefore, data from all seven participants were included in the final analysis.

No adverse events related to the study were observed during the study period

Primary outcome Daily step count measured using a triaxial accelerometer pedometer The change in step counts across ABAB phases was evaluated using visual analysis and Tau U statistics Secondary outcome Exercise self efficacy measured using a questionnaire

This study examined the effects of a smartphone based step count intervention among seven community dwelling older women with limited health literacy An ABAB single case design was used with alternating monitoring and intervention phases Competitive events were introduced during intervention phases and monetary incentives were added in the final phase Changes in daily step counts were evaluated using visual analysis and Tau U statistics

July. 01, 2026

No

Individual participant data will not be shared

https://jrct.mhlw.go.jp/latest-detail/jRCT1070240093

Matsuda Kensuke

International University of Health and Welfare

137-1 Enokizu, Okawa City, Fukuoka 831-8501, Japan

k.matsuda@ihwg.jp

Matsuda Kensuke

International University of Health and Welfare

137-1 Enokizu, Okawa City, Fukuoka 831-8501, Japan

+81-944-89-2144

k.matsuda@ihwg.ac.jp

Complete

Jan. 09, 2025

Interventional

single arm study

open(masking not used)

uncontrolled control

single assignment

prevention purpose

1. Individuals who can give written consent to participate in the study of their own free will
2. Community-dwelling elderly people aged 65 to 75 years at the time of consent
3. Gender (Female)
4. Individuals who are independent in walking and daily activities
5. Individuals who have been determined to have reduced health literacy

1. Participants who are judged to be hearing impaired, visually impaired, central paralysis, severe orthopedic disease, or affected by medication.
2. Participants who have poor standing posture and significantly reduced balance ability.
3. Participants whose cognitive function is so significantly reduced that it is deemed to interfere with conversation and makes it difficult to complete a questionnaire survey.

Female

Low health literacy
Insufficient physical activity

The intervention will involve using a physical activity monitor and a mobile app to provide information and feedback on the monitoring results, as well as application-based events and financial incentives.

Frail, Pre-frail

Feedback, Application, Incentive

Frail Elderly

Feedback, Application, Incentive

Physical activity (number of steps)

Frailty/pre-frailty assessment
Exercise self-efficacy
Body composition
Physical function (walking speed, grip strength, lower limb strength)

+81-944-89-2000

Oct. 29, 2024

none