Sedentary LifestyleNCT01280812
Applying Mobile Persuasive Technologies to Increase Physical Activity in Women
A study testing Mobile phone based physical activity intervention with maintenance plus and Mobile phone based physical activity intervention with maintenance regular in people with Sedentary Lifestyle and Physical Activity, run by University of California, San Francisco at 1 site in United States.
Trial summary
The primary purpose of this study is to assess the efficacy of the mobile phone-based physical activity intervention on increasing physical activity compared to the control group. Read more about this study
- Who is it for?
- Ages 25 to 69 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Sedentary Lifestyle, Physical Activity
- What is being tested?
- Mobile phone based physical activity intervention with maintenance plus and Mobile phone based physical activity intervention with maintenance regular
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 210 participants
- Where
- 1 siteUnited States
- Study dates
- Feb 2011to Apr 2015
- Phase
- Interventional
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 25 to 69 years
- Women only
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Sedentary lifestyle at work and/or during leisure time
- Intend to be physically active
- Female, age >25 to 69
- Access to a home telephone or a mobile phone
- Speak and read English
Who cannot join
- Known medical conditions or other physical problems that need special attention in an exercise program
- Plan a trip abroad during the first 4 months of the study period.
- Pregnant/Delivered a baby during the last 6 months
- Known severe hearing or speech problem
- Body Mass Index (BMI) > 43.0 kg/m2
- Currently participate in lifestyle modification programs or research studies that may potentially confound the results of the study
- History of bariatric surgery or future plans for bariatric surgery in the next 12 months
Trial locations and contacts
1 site in 1 country.
United States1 site
University of California San Francisco (Laurel Heights)
San Francisco, California, 94118
About this study
The primary purpose of this study is to assess the efficacy of the mobile phone-based physical activity intervention on increasing physical activity compared to the control group.
Read the detailed description
Physical inactivity is associated with increased risk of co-morbidity and premature mortality. Given the rapid growth of mobile phone technology and the increasing number of users, the investigators developed an interactive mobile phone-based physical activity intervention for sedentary women. The investigators propose to conduct a randomized, controlled trial to assess the efficacy of the mobile phone-based physical activity intervention on increasing physical activity over a 3-month period. 192 sedentary women will be randomized in a 2-to-1 ratio to a 3-month mobile phone-based physical activity intervention group or to a control group. To provide insight into how best to maximize the potential for sustained physical activity after completion of the 3-month program, women in the intervention group who complete the physical activity program will be further randomized into a 6-month maintenance intervention-PLUS program (pedometer plus mobile phone diary) or to a 6-month maintenance intervention-REGULAR program (pedometer only). Unlike a conventional maintenance follow-up in which all subjects continue in their respective randomization arms, re-randomizing subjects into either a maintenance intervention-REGULAR group or a maintenance intervention-PLUS group will allow us to examine the "dose-response" of the maintenance methods if the intervention is effective.
- Conditions
- Sedentary Lifestyle, Physical Activity
- Being tested
- Mobile phone based physical activity intervention with maintenance plus, Mobile phone based physical activity intervention with maintenance regular, Control (pedometer only)
- Keywords
- mobile phone, physical activity, women, maintenance, health promotion, prevention
- Medical subject headings
- Sedentary Behavior, Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Mobile phone based physical activity intervention with maintenance plusBehavioural
This group will receive a mobile phone software program and a pedometer. Over a 3-month period, participants in this group will be asked to wear a pedometer, use a mobile phone physical activity diary, and respond daily physical activity messages or video clips. Over a 6-month maintenance period, participants will be asked to continue using a pedometer and a mobile phone physical activity diary.
Mobile phone based physical activity intervention with maintenance regularBehavioural
This group will receive a mobile phone software program and a pedometer. Over a 3-month period, participants in this group will be asked to wear a pedometer, use a mobile phone physical activity diary, and respond daily physical activity messages or video clips. Over a 6-month maintenance period, participants will be asked to continue using a pedometer.
Control (pedometer only)Behavioural
This group will receive a pedometer. Over a 9-month period, participants in this group will be asked to wear a pedometer.
| Study group | Role | What they receive |
|---|---|---|
| PA intervention and Maintenance plus | Experimental | 3-month physical activity intervention and 6-month maintenance intervention-Plus program Receives: Behavioral: Mobile phone based physical activity intervention with maintenance plus |
| PA intervention and Maintenance regular | Experimental | 3-month physical activity intervention and 6-month maintenance - Regular program Receives: Behavioral: Mobile phone based physical activity intervention with maintenance regular |
| Pedometer | Active comparator | Non-intervention group Receives: Behavioral: Control (pedometer only) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Accelerometer (Omron Active Style Pro HJA-350IT) Measured Daily Steps
This Omron Active Style Pro HJA-350IT comes with a Universal Serial Bus (USB) Connection and personal computer (PC) Software. The Active Style Pro HJA-350IT can display daily steps. The advantage of using the Omron Active Style Pro HJA-350IT is that the Omron Active Style Pro HJA-350IT will automatically reset the step count every evening at midnight while still allowing participants to view the past 7 days of step counts. Another advantage of using this Omron Active Style Pro HJA-350IT is that a researcher can select 1 of 4 Omron Active Style Pro HJA-350IT screen displays: (1) Steps display only, (2) metabolic equivalents (MET) display only, (3) 24-hour clock display (does not show any physical activity information), and (4) Steps, MET, and weekly average activities during the last four weeks. Data from the most recent 150 days performance will also be automatically stored so they can be directly downloaded to a computer.
Measured: Baseline, 3, and 9 months
Accelerometer (Omron Active Style Pro HJA-350IT) Measured Moderate to Vigorous Physical Activity (Minutes Per Day)
This Omron Active Style Pro HJA-350IT comes with a Universal Serial Bus (USB) Connection and personal computer (PC) Software. The Active Style Pro HJA-350IT can display daily steps. The advantage of using the Omron Active Style Pro HJA-350IT is that the Omron Active Style Pro HJA-350IT will automatically reset the step count every evening at midnight while still allowing participants to view the past 7 days of step counts. Another advantage of using this Omron Active Style Pro HJA-350IT is that a researcher can select 1 of 4 Omron Active Style Pro HJA-350IT screen displays: (1) Steps display only, (2) metabolic equivalents (MET) display only, (3) 24-hour clock display (does not show any physical activity information), and (4) Steps, MET, and weekly average activities during the last four weeks. Data from the most recent 150 days performance will also be automatically stored so they can be directly downloaded to a computer.
Measured: Baseline, 3 and 9 months
Secondary outcomes (4)
Self-reported Physical Activity Measured by the 7-day Physical Activity Recall (PAR)
An interviewer-administered 7-day physical activity recall (PAR) is used to assess physical activities performed during the week preceding each visit. The PAR is a widely used and well-validated self-report recall instrument that assesses the frequency, duration, and intensity of physical activity. It yields average kcal/kg/day.
Measured: Baseline, 3 and 9 months
Modified Self-Efficacy for Physical Activity Survey
The Self-Efficacy for Physical Activity will be used to measure how confident the participant is to engage in physical activity in a specific situation. A sample item is, "I am confident I can participate in regular physical activity when I am tired." The measure consists of five items on a scale of 1 to 5, "1" being "not at all confident" and "5" being "very confident." The possible range of scores is from 5 to 25 points. Higher scores indicate higher self-efficacy for physical activity. Reported internal consistency ranges from 0.78 to 0.82. This measure has been widely used in adult women and men. Based on our pilot study, we added one additional question to this survey.
Measured: Baseline, 3 and 9 months
Social Support for Physical Activity (Family)
The Social Support and Exercise Survey will be used to measure both friend and family social support related to physical activity during the past three months. The measure comprises two subscales (friend and family support subscales). Each subscale has 12 items with 5-point Likert scales (ranging from 1, "none" to 5, "very often"). The ratings of all 12 items are summed for a subtotal score (possible ranges from 12 to 60). Internal consistency (Cronbach's alpha) of the measure was 0.83 in previous studies. Test-retest reliabilities of the measure have ranged from 0.79 to 0.90 for both scales. Reported internal consistencies ranged between 0.80 to 0.93 for both scales. Higher scores indicate greater support.
Measured: Baseline, 3 and 9 months
Social Support for Physical Activity (Friends)
The Social Support and Exercise Survey will be used to measure both friend and family social support related to physical activity during the past three months. The measure comprises two subscales (friend and family support subscales). Each subscale has 12 items with 5-point Likert scales (ranging from 1, "none" to 5, "very often"). The ratings of all 12 items are summed for a subtotal score (possible ranges from 12 to 60). Internal consistency (Cronbach's alpha) of the measure was 0.83 in previous studies. Test-retest reliabilities of the measure have ranged from 0.79 to 0.90 for both scales. Reported internal consistencies ranged between 0.80 to 0.93 for both scales.
Measured: Baseline, 3 and 9 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Jan 2011 (estimated)
- Study startFeb 2011
- Primary completionApr 2015
- Study completionApr 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (9)Papers the sponsor has linked to this study.
- Other trials for Sedentary LifestyleStudies of the same condition, open and under way.
- More trials run by University of California, San FranciscoThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 210 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of California, San Francisco
- Sponsor type
- University, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI), American Heart Association
- Responsible party
- Sponsor
- Investigators
- Yoshimi Fukuoka, Ph.D., Principal investigator, University of California, San Francisco
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01280812
- Sponsor's protocol ID
- P0031274
- Other IDs
- 5R01HL104147-02
- Status last verified
- Apr 2025
- First submitted
- 23 Nov 2010
- Last updated
- 29 Apr 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- Individual data sharing
- No
Publications
Fukuoka Y, Komatsu J, Suarez L, Vittinghoff E, Haskell W, Noorishad T, Pham K. The mPED randomized controlled clinical trial: applying mobile persuasive technologies to increase physical activity in sedentary women protocol. BMC Public Health. 2011 Dec 14;11:933. doi: 10.1186/1471-2458-11-933.
PubMed 22168267Fukuoka Y, Gay C, Haskell W, Arai S, Vittinghoff E. Identifying Factors Associated With Dropout During Prerandomization Run-in Period From an mHealth Physical Activity Education Study: The mPED Trial. JMIR Mhealth Uhealth. 2015 Apr 13;3(2):e34. doi: 10.2196/mhealth.3928.
PubMed 25872754Fukuoka Y, Haskell W, Vittinghoff E. New insights into discrepancies between self-reported and accelerometer-measured moderate to vigorous physical activity among women - the mPED trial. BMC Public Health. 2016 Aug 11;16(1):761. doi: 10.1186/s12889-016-3348-7.
PubMed 27514368Lindgren T, Hooper J, Fukuoka Y. Perceptions and Experiences of Women Participating in a Digital Technology-Based Physical Activity Intervention (the mPED Trial): Qualitative Study. JMIR Public Health Surveill. 2019 Dec 20;5(4):e13570. doi: 10.2196/13570.
PubMed 31859677Zhou M, Fukuoka Y, Goldberg K, Vittinghoff E, Aswani A. Applying machine learning to predict future adherence to physical activity programs. BMC Med Inform Decis Mak. 2019 Aug 22;19(1):169. doi: 10.1186/s12911-019-0890-0.
PubMed 31438926Fukuoka Y, Haskell W, Lin F, Vittinghoff E. Short- and Long-term Effects of a Mobile Phone App in Conjunction With Brief In-Person Counseling on Physical Activity Among Physically Inactive Women: The mPED Randomized Clinical Trial. JAMA Netw Open. 2019 May 3;2(5):e194281. doi: 10.1001/jamanetworkopen.2019.4281.
PubMed 31125101Fukuoka Y, Lindgren TG, Mintz YD, Hooper J, Aswani A. Applying Natural Language Processing to Understand Motivational Profiles for Maintaining Physical Activity After a Mobile App and Accelerometer-Based Intervention: The mPED Randomized Controlled Trial. JMIR Mhealth Uhealth. 2018 Jun 20;6(6):e10042. doi: 10.2196/10042.
PubMed 29925491Fukuoka Y, Zhou M, Vittinghoff E, Haskell W, Goldberg K, Aswani A. Objectively Measured Baseline Physical Activity Patterns in Women in the mPED Trial: Cluster Analysis. JMIR Public Health Surveill. 2018 Feb 1;4(1):e10. doi: 10.2196/publichealth.9138.
PubMed 29391341Fukuoka Y, Lisha NE, Vittinghoff E. Comparing Asian American Women's Knowledge, Self-Efficacy, and Perceived Risk of Heart Attack to Other Racial and Ethnic Groups: The mPED Trial. J Womens Health (Larchmt). 2017 Sep;26(9):1012-1019. doi: 10.1089/jwh.2016.6156. Epub 2017 Apr 18.
PubMed 28418750
Study at a glance
From the registry record, last updated by the sponsor on 29 Apr 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Applying Mobile Persuasive Technologies to Increase Physical Activity in Women
- ClinicalTrials.gov ID
- NCT01280812
- Acronym / sponsor ID
- P0031274
- Conditions
- Sedentary Lifestyle, Physical Activity
- Keywords
- mobile phone, physical activity, women, maintenance, health promotion, prevention
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 210 participants (actual)
- Lead sponsor
- University of California, San FranciscoUniversity, hospital or other
- Collaborators
- National Heart, Lung, and Blood Institute (NHLBI), American Heart Association
- Study start
- Feb 2011
- Primary completion
- Apr 2015 (actual)
- Study completion
- Apr 2015 (actual)
- First posted
- 21 Jan 2011 (estimated)
- Results
- Posted 23 Sep 2020
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary purpose of this study is to assess the efficacy of the mobile phone-based physical activity intervention on increasing physical activity compared to the control group.
Detailed description
Physical inactivity is associated with increased risk of co-morbidity and premature mortality. Given the rapid growth of mobile phone technology and the increasing number of users, the investigators developed an interactive mobile phone-based physical activity intervention for sedentary women. The investigators propose to conduct a randomized, controlled trial to assess the efficacy of the mobile phone-based physical activity intervention on increasing physical activity over a 3-month period. 192 sedentary women will be randomized in a 2-to-1 ratio to a 3-month mobile phone-based physical activity intervention group or to a control group. To provide insight into how best to maximize the potential for sustained physical activity after completion of the 3-month program, women in the intervention group who complete the physical activity program will be further randomized into a 6-month maintenance intervention-PLUS program (pedometer plus mobile phone diary) or to a 6-month maintenance intervention-REGULAR program (pedometer only). Unlike a conventional maintenance follow-up in which all subjects continue in their respective randomization arms, re-randomizing subjects into either a maintenance intervention-REGULAR group or a maintenance intervention-PLUS group will allow us to examine the "dose-response" of the maintenance methods if the intervention is effective.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| PA intervention and Maintenance plus | Experimental | Behavioral: Mobile phone based physical activity intervention with maintenance plus3-month physical activity intervention and 6-month maintenance intervention-Plus program |
| PA intervention and Maintenance regular | Experimental | Behavioral: Mobile phone based physical activity intervention with maintenance regular3-month physical activity intervention and 6-month maintenance - Regular program |
| Pedometer | Active comparator | Behavioral: Control (pedometer only)Non-intervention group |
Who may qualify
- Ages
- 25 to 69 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Sedentary lifestyle at work and/or during leisure time
- Intend to be physically active
- Female, age >25 to 69
- Access to a home telephone or a mobile phone
- Speak and read English
Key exclusion criteria (7 listed)
- Known medical conditions or other physical problems that need special attention in an exercise program
- Plan a trip abroad during the first 4 months of the study period.
- Pregnant/Delivered a baby during the last 6 months
- Known severe hearing or speech problem
- Body Mass Index (BMI) > 43.0 kg/m2
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Mobile phone based physical activity intervention with maintenance plusThis group will receive a mobile phone software program and a pedometer. Over a 3-month period, participants in this group will be asked to wear a pedometer, use a mobile phone physical activity diary, and respond daily physical activity messages or video clips. Over a 6-month maintenance period, participants will be asked to continue using a pedometer and a mobile phone physical activity diary. | Behavioural | PA intervention and Maintenance plus |
| Mobile phone based physical activity intervention with maintenance regularThis group will receive a mobile phone software program and a pedometer. Over a 3-month period, participants in this group will be asked to wear a pedometer, use a mobile phone physical activity diary, and respond daily physical activity messages or video clips. Over a 6-month maintenance period, participants will be asked to continue using a pedometer. | Behavioural | PA intervention and Maintenance regular |
| Control (pedometer only)This group will receive a pedometer. Over a 9-month period, participants in this group will be asked to wear a pedometer. | Behavioural | Pedometer |
Primary outcome
Accelerometer (Omron Active Style Pro HJA-350IT) Measured Daily Steps
Time frame: Baseline, 3, and 9 months
This Omron Active Style Pro HJA-350IT comes with a Universal Serial Bus (USB) Connection and personal computer (PC) Software. The Active Style Pro HJA-350IT can display daily steps. The advantage of using the Omron Active Style Pro HJA-350IT is that the Omron Active Style Pro HJA-350IT will automatically reset the step count every evening at midnight while still allowing participants to view the past 7 days of step counts. Another advantage of using this Omron Active Style Pro HJA-350IT is that a researcher can select 1 of 4 Omron Active Style Pro HJA-350IT screen displays: (1) Steps display only, (2) metabolic equivalents (MET) display only, (3) 24-hour clock display (does not show any physical activity information), and (4) Steps, MET, and weekly average activities during the last four weeks. Data from the most recent 150 days performance will also be automatically stored so they can be directly downloaded to a computer.
Accelerometer (Omron Active Style Pro HJA-350IT) Measured Moderate to Vigorous Physical Activity (Minutes Per Day)
Time frame: Baseline, 3 and 9 months
This Omron Active Style Pro HJA-350IT comes with a Universal Serial Bus (USB) Connection and personal computer (PC) Software. The Active Style Pro HJA-350IT can display daily steps. The advantage of using the Omron Active Style Pro HJA-350IT is that the Omron Active Style Pro HJA-350IT will automatically reset the step count every evening at midnight while still allowing participants to view the past 7 days of step counts. Another advantage of using this Omron Active Style Pro HJA-350IT is that a researcher can select 1 of 4 Omron Active Style Pro HJA-350IT screen displays: (1) Steps display only, (2) metabolic equivalents (MET) display only, (3) 24-hour clock display (does not show any physical activity information), and (4) Steps, MET, and weekly average activities during the last four weeks. Data from the most recent 150 days performance will also be automatically stored so they can be directly downloaded to a computer.
4 secondary outcomes
Self-reported Physical Activity Measured by the 7-day Physical Activity Recall (PAR)
Time frame: Baseline, 3 and 9 months
Modified Self-Efficacy for Physical Activity Survey
Time frame: Baseline, 3 and 9 months
Social Support for Physical Activity (Family)
Time frame: Baseline, 3 and 9 months
Social Support for Physical Activity (Friends)
Time frame: Baseline, 3 and 9 months
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Apr 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 22168267Fukuoka Y, Komatsu J, Suarez L, Vittinghoff E, Haskell W, Noorishad T, Pham K. The mPED randomized controlled clinical trial: applying mobile persuasive technologies to increase physical activity in sedentary women protocol. BMC Public Health. 2011 Dec 14;11:933. doi: 10.1186/1471-2458-11-933.
- Background: PubMed 25872754Fukuoka Y, Gay C, Haskell W, Arai S, Vittinghoff E. Identifying Factors Associated With Dropout During Prerandomization Run-in Period From an mHealth Physical Activity Education Study: The mPED Trial. JMIR Mhealth Uhealth. 2015 Apr 13;3(2):e34. doi: 10.2196/mhealth.3928.
- Background: PubMed 27514368Fukuoka Y, Haskell W, Vittinghoff E. New insights into discrepancies between self-reported and accelerometer-measured moderate to vigorous physical activity among women - the mPED trial. BMC Public Health. 2016 Aug 11;16(1):761. doi: 10.1186/s12889-016-3348-7.
- Derived from this study: PubMed 31859677Lindgren T, Hooper J, Fukuoka Y. Perceptions and Experiences of Women Participating in a Digital Technology-Based Physical Activity Intervention (the mPED Trial): Qualitative Study. JMIR Public Health Surveill. 2019 Dec 20;5(4):e13570. doi: 10.2196/13570.
- Derived from this study: PubMed 31438926Zhou M, Fukuoka Y, Goldberg K, Vittinghoff E, Aswani A. Applying machine learning to predict future adherence to physical activity programs. BMC Med Inform Decis Mak. 2019 Aug 22;19(1):169. doi: 10.1186/s12911-019-0890-0.
- Derived from this study: PubMed 31125101Fukuoka Y, Haskell W, Lin F, Vittinghoff E. Short- and Long-term Effects of a Mobile Phone App in Conjunction With Brief In-Person Counseling on Physical Activity Among Physically Inactive Women: The mPED Randomized Clinical Trial. JAMA Netw Open. 2019 May 3;2(5):e194281. doi: 10.1001/jamanetworkopen.2019.4281.
- Derived from this study: PubMed 29925491Fukuoka Y, Lindgren TG, Mintz YD, Hooper J, Aswani A. Applying Natural Language Processing to Understand Motivational Profiles for Maintaining Physical Activity After a Mobile App and Accelerometer-Based Intervention: The mPED Randomized Controlled Trial. JMIR Mhealth Uhealth. 2018 Jun 20;6(6):e10042. doi: 10.2196/10042.
- Derived from this study: PubMed 29391341Fukuoka Y, Zhou M, Vittinghoff E, Haskell W, Goldberg K, Aswani A. Objectively Measured Baseline Physical Activity Patterns in Women in the mPED Trial: Cluster Analysis. JMIR Public Health Surveill. 2018 Feb 1;4(1):e10. doi: 10.2196/publichealth.9138.
- Derived from this study: PubMed 28418750Fukuoka Y, Lisha NE, Vittinghoff E. Comparing Asian American Women's Knowledge, Self-Efficacy, and Perceived Risk of Heart Attack to Other Racial and Ethnic Groups: The mPED Trial. J Womens Health (Larchmt). 2017 Sep;26(9):1012-1019. doi: 10.1089/jwh.2016.6156. Epub 2017 Apr 18.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Yoshimi Fukuoka, Ph.D. principal investigator
University of California, San Francisco
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Mobile phone based physical activity intervention with maintenance plus and Mobile phone based physical activity intervention with maintenance regular in people with Sedentary Lifestyle and Physical Activity, run by University of California, San Francisco at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 29 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 23 Sep 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Accelerometer (Omron Active Style Pro HJA-350IT) Measured Daily Steps (time frame: Baseline, 3, and 9 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01280812, which also lists 9 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Apr 2025.