A smartphone diet application with personalized advice to promote physical activity: A randomized controlled trial

A smartphone diet application with personalized advice to promote physical activity: A randomized controlled trial - A diet app with personalized advice to promote physical activity

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000046137

Enrollment

200

Registered

2021-11-23

Start date

2021-11-30

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

Healthy adult

Interventions

Use of a smartphone diet application without personalized advice for physical activity. Use of a smartphone diet application with personalized advice for physical activity.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: (1) Those who can install the diet application on their smartphones. (2) Those who understand the purpose and contents of the study and provide written informed consent.

Exclusion criteria

Exclusion criteria: (1) Those who have a history of heart disease or cerebrovascular disease. (2) Those who have gait disturbance. (3) Those who are currently pregnant or desire pregnancy during the study. (4) Those who are judged as unsuitable for the study by the principal investigator for other reasons.

Design outcomes

Primary

Measure	Time frame
Change in steps over three months.	—

Secondary

Measure	Time frame
Changes in physical activity and the percentage of people with exercise habits over three months.	—

Countries

Japan

Contacts

Public ContactYoshio NAKATA

University of Tsukuba Faculty of Health and Sport Sciences

nakata.yoshio.gn@u.tsukuba.ac.jp029-853-3957

Outcome results

None listed

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