NCT07639814

Brief Summary

This study evaluates the effect of street signs inviting to use the conventional stairs instead of escalators at a subway station without and with active pop music.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,000

participants targeted

Target at P75+ for all trials

Timeline
3mo left

Started Jun 2026

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress16%
Jun 2026Aug 2026

First Submitted

Initial submission to the registry

May 11, 2026

Completed
21 days until next milestone

Study Start

First participant enrolled

June 1, 2026

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 10, 2026

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

August 30, 2026

Last Updated

June 10, 2026

Status Verified

May 1, 2026

Enrollment Period

2 months

First QC Date

May 11, 2026

Last Update Submit

June 6, 2026

Conditions

Physical Activity

Keywords

SubwayPhsysical activityChileStreet signsMusic

Outcome Measures

Primary Outcomes (1)

  • Proportion of passengers using the conventional stairs of the total number of passengers entering the subway station assessed using tally counters at the time of observation of subway entrance

    Rate of passengers using the conventional stairs of the total number of passengers entering the subway station using tally counters at the time of observation of subway entrance

    Immediately at the time of subway entrance: at weeks 1 and 2 (baseline, pre-test), when street signs are posted at weeks 3 and 4, when street signs are posted with pop music at weeks 5 and 6, and without interventions at week 7 (post-test).

Secondary Outcomes (5)

  • Proportion of male passengers using the conventional stairs of the total number of passengers entering the subway station assessed using tally countersat the time of observation of subway entrance

    Immediately at the time of subway entrance: at weeks 1 and 2 (baseline, pre-test), when street signs are posted at weeks 3 and 4, when street signs are posted with pop music at weeks 5 and 6, and without interventions at week 7 (post-test).

  • Proportion of female passengers using the conventional stairs of the total number of passengers entering the subway station assessed using tally counters at the time of observation of subway entrance

    Immediately at the time of subway entrance: at weeks 1 and 2 (baseline, pre-test), when street signs are posted at weeks 3 and 4, when street signs are posted with pop music at weeks 5 and 6, and without interventions at week 7 (post-test).

  • Proportion of minor passengers (under 18 years old) using the conventional stairs of the total number of passengers entering the subway station assessed using tally counters at the time of observation of subway entrance

    Immediately at the time of subway entrance: at weeks 1 and 2 (baseline, pre-test), when street signs are posted at weeks 3 and 4, when street signs are posted with pop music at weeks 5 and 6, and without interventions at week 7 (post-test).

  • Proportion of adult passengers (aged 19-65 years old) using the conventional stairs of the total number of passengers entering the subway station assessed using tally counters at the time of observation of subway entrance

    Immediately at the time of subway entrance: at weeks 1 and 2 (baseline, pre-test), when street signs are posted at weeks 3 and 4, when street signs are posted with pop music at weeks 5 and 6, and without interventions at week 7 (post-test).

  • Proportion of senior passengers (aged over 65 years old) using the conventional stairs of the total number of passengers entering the subway station assessed using tally counters at the time of observation of subway entrance

    Immediately at the time of subway entrance: at weeks 1 and 2 (baseline, pre-test), when street signs are posted at weeks 3 and 4, when street signs are posted with pop music at weeks 5 and 6, and without interventions at week 7 (post-test).

Study Arms (3)

Control

Passengers entering a subway station with no intervention

Other: No intervention

Street sign only

Passengers entering a subway station with a street sign promoting conventional stair use

Behavioral: Street signs

Street sign + active pop music

Passengers entering a subway station with a street sign promoting conventional stair use + active pop music

Behavioral: Street signsBehavioral: Music intervention

Interventions

No interventionOTHER

No street intervention

Control
Street signsBEHAVIORAL

Street signs promoting conventional stair use, e.g. Use the stairs! They boost your health!

Street sign + active pop musicStreet sign only
Music interventionBEHAVIORAL

Environmental active pop music

Street sign + active pop music

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

All passengers entering a subway station

You may qualify if:

  • All subway users

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Pontificia Universidad Catolica de Chile

Santiago, Chile

Location

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Study Officials

  • Diego Garcia-Huidobro, MD, PhD

    Pontificia Universidad Catolica de Chile

    PRINCIPAL INVESTIGATOR

  • Maria Martina Garcia-Huidobro Diaspro

    Villa María Academy

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Diego Garcia-Huidobro, MD, PhD

CONTACT

+56930233407diegogarciahuidobro@gmail.com

Study Design

Study Type
observational
Observational Model
ECOLOGIC OR COMMUNITY
Time Perspective
PROSPECTIVE
Target Duration
1 Day
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 11, 2026

First Posted

June 10, 2026

Study Start

June 1, 2026

Primary Completion (Estimated)

July 31, 2026

Study Completion (Estimated)

August 30, 2026

Last Updated

June 10, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will not share

Locations

CL(1)