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CompletedNCT01537939ASUKI-StepUpdated Feb 23, 2012

ASUKI Step Pedometer Worksite Intervention

A Phase 4 interventional study of ASUKI Step Worksite Pedometer Intervention in Physical Activity, sponsored by Arizona State University. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2012-02-23.

Sponsored by Arizona State University · Phase 4, Interventional, and Prevention

Phase
Phase 4
Study type
Interventional
Enrollment
2,018
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

ASUKI Step is designed to increase the number of days employees walk 10,000 steps and to reduce the number of days employees spend being inactive.

Study aims were:

  1. to have a minimum of 400 employee participants from each university site reach a level of 10, 000 steps per day on at least 100 days (3.5 months) during the trial period;
  2. to have 70% of the employee participants from each university site maintain two or fewer inactive days per week, defined as a level of less than 3,000 steps per day;
  3. to describe the socio-demographic, psychosocial, environmental and health-related determinants of success in the intervention; and
  4. to evaluate the effects of a pedometer-based walking intervention in a university setting on changes in self-perceived health and stress level, sleep patterns, anthropometric measures and fitness.
Read the detailed description

ASUKI Step is a 9-month pedometer-based worksite intervention conducted at the Karolinska Institutet (KI) in Stockholm, Sweden and Arizona State University (ASU) in the greater Phoenix area, Arizona. ASUKI Step used a quasi-experimental design based on the theory of social support. Participants included 2,118 faculty, staff, and graduate students from ASU (n = 712) and KI (n = 1,406) who participated in teams of 3-4 persons. The intervention required participants to accumulate 10,000 steps each day for six months, with a 3-month follow-up period. Steps were recorded onto a study-specific website. Participants completed a website-delivered questionnaire four times to identify socio-demographic, health, psychosocial and environmental correlates of study participation. One person from each team at each university location was randomly selected to complete physical fitness testing to determine their anthropometric and cardiovascular health and to wear an accelerometer for one week. Incentives were given for compliance to the study protocol that included weekly raffles for participation prizes and a grand finale trip to Arizona or Sweden for teams with most days over 10,000 steps.

02

Conditions studied

  • Physical Activity

Keywords

  • Physical Activity
  • Walking
  • Pedometer
  • Body Composition
  • Aerobic Fitness
03

In context

Lead sponsor

Arizona State University is the lead sponsor of 234 studies on the registry; 41 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Employed at Arizona State University (ASU)or the Karolinska Institute (KI)
  • The ability to read, speak and understand English (ASU only)
  • Not currently pregnant or lactating
  • Free of physical problems that affect the ability to walk, and e) ages 18 and older

Exclusion criteria

Exclusion Criteria:

  • Inability to walk
  • Not employed or a graduate student at ASU or the KI
05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
2,018 participants (actual)

Study arms

  • Other
    Walking

    Quasi-experimental design with one-group, post-test only

    Behavioral: ASUKI Step Worksite Pedometer Intervention

Interventions

  • BehavioralASUKI Step Worksite Pedometer Intervention

    The intervention required participants to accumulate 10,000 steps each day for six months, with a 3-month follow-up period. Steps were recorded onto a study-specific website. Participants completed a website-delivered questionnaire four times to identify socio-demographic, health, psychosocial and environmental correlates of study participation. One person from each team at each university location was randomly selected to complete physical fitness testing to determine their anthropometric and cardiovascular health and to wear an accelerometer for one week.

    Also known as: Pedometer-monitored daily walking

06

What researchers measure

Primary outcomes

  1. Percent of sample walking 10,000 steps per day on at least 100 days (3.5 months) during the trial period.

    Tally of the participants recording 10,000 steps on their pedometer log for 100 days of the 6 month walking intervention.

    Time frame: End of walking intervention at 6 months

Secondary outcomes

  1. Changes in self-perceived health and stress level, sleep patterns, anthropometric measures and fitness.

    Compare the measures between the first week and the last week of the 6-month intervention study

    Time frame: End of the 6 month walking study

07

Study locations

1 site
  • Arizona State University and Karolinska Institutet
    Phoenix, Arizona 85142, United States
08

References and documents

Publications

  • Ainsworth BE, Der Ananian C, Soroush A, Walker J, Swan P, Poortvliet E, Yngve A. "ASUKI Step" pedometer intervention in university staff: rationale and design. BMC Public Health. 2012 Aug 15;12:657. doi: 10.1186/1471-2458-12-657. PubMed 22894138 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 23, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01537939
Lead sponsor
Arizona State University
Collaborators
Karolinska Institutet
Responsible party
Barbara E. Ainsworth (Professor, Arizona State University) — Principal investigator
First posted
Feb 23, 2012
Start date
Mar 2009
Primary completion
Sep 2009
Completion
Dec 2009
Last update
Feb 23, 2012

Study contacts

Barbara E. Ainsworth, Ph.D.
principal investigator · Arizona State University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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