Skip to content

America Walks: An Observational Study of Walking Behavior Based on Passive Step Tracking

America Walks: An Observational Study of Walking Behavior Based on Passive Step Tracking Using a Mobile Phone Application

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02792439
Acronym
AMWALKS
Enrollment
200
Registered
2016-06-07
Start date
2016-02-29
Completion date
2016-12-31
Last updated
2017-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Keywords

Fitness, Health kit, Researchkit, Walking

Brief summary

America Walks is an observational research study to determine walking behavior of individuals in the United States. The entire study will be conducted virtually by requiring participants to download a mobile phone application (App), The App will leverage the mobile phone's step count sensor technology to automatically determine participants' daily walking activity. Participation is voluntary. Participants can choose not to participate or choose to participate and then stop participating. Participants decision will not result in any penalty or loss of benefits to which they are entitled.

Detailed description

This will be the first study to measure walking activity using mobile phones. It is well known that physical activity can promote well-being and help prevent several chronic diseases. It is recommended that an individual should do moderate to vigorous walking for 30 minutes or walk approximately 10,000 steps everyday. Several studies have reported measuring walking activity using self-reported surveys, or pedometers in samples ranging from a dozen to a couple of thousand participants. However these studies have largely required participants to enter their walking data manually, either from memory or from pedometer recordings. With the rapid availability of activity sensors embedded in smart-phones (such as Apple's iPhone version 5S and up and several Google's Android phone models), it is now possible to track physical activity data passively from the end-user and do so for longer durations as individuals have increasingly begun to use their Phones as a continuous device of use.

Interventions

None listed

Sponsors

TrialX Inc
Lead SponsorINDUSTRY

Study design

Observational model
ECOLOGIC_OR_COMMUNITY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Be at-least 18 years old (self -reported) * Must reside in the United States (50 states and the District of Columbia); this will be self reported by the participant by entering a zip code which will be checked for valid US zip codes.

Exclusion criteria

* Does not have a device that supports Apple HealthKit (iPhone 5s or above) or doesn't not have an Android phone with step count sensors

Design outcomes

Primary

MeasureTime frameDescription
Total step count30 daysThis is the total step count from enrollment onwards till user completes 30 days, or quits or till end of study (if the participant continues after 30 days)

Secondary

MeasureTime frameDescription
Average daily step count (baseline, study)30 daysThis will be obtained by averaging the step count data 30 days before enrollment and for the 30 days of the study.
Correlation between perception and actual walking4 monthsCalculate the correlation between perceived walking activity as measured by survey items and walking activity as determined by the number of actual steps walked
Total step count (baseline)30 daysThe total step count collected from the history on the device (if supported) obtained by the step count data of 30 days before enrollment
Standard Deviation of step count4 months
Ranking of cities by daily Average step count4 monthsAll participants will be grouped by their location and location averages will be ranked

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026