Physical ActivityTAKSINCT01892475
TAKing Steps for Incentives
A study testing Incentive-based physical activity program and 3-month follow up in people with Physical Activity and Incentives, run by Duke-NUS Graduate Medical School at 1 site in Singapore.
Trial summary
The purpose of this study is to test the overall effects of incentives on physical activity among older taxi drivers, and whether mental accounting exists in this context. Read more about this study
- Who is it for?
- Ages 50 to 75 yearsHealthy volunteers can take part
- Conditions the study is for
- Physical Activity, Incentives
- What is being tested?
- Incentive-based physical activity program and 3-month follow up
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 314 participants
- Where
- 1 siteSingapore
- Study dates
- Nov 2013to Dec 2015
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 50 to 75 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Must be a taxi driver who is a hirer, and who drives for at least 8 hours daily over 5 days
- Aged between 50 to 75
- English/Mandarin-speaking
Who cannot join
- Report difficulty doing 10 minutes of aerobic activities without stopping, walking up 10 stairs without stopping or performing basic activities of daily living
- Have any medical conditions that limit their ability to walk as a means of physical activity
Trial locations and contacts
1 site in 1 country.
Singapore1 site
Duke-NUS Graduate Medical School
Singapore, Singapore, 169857
About this study
Official title: TAKing Steps for Incentives (TAKSI) - A Randomized Controlled Trial to Motivate and Sustain Physical Activity Using Financial Incentives
The purpose of this study is to test the overall effects of incentives on physical activity among older taxi drivers, and whether mental accounting exists in this context.
Read the detailed description
As part of the 4-month Randomized Controlled Trial, participating taxi drivers will be assigned to 1 of 2 groups where they will receive either cash or taxi rental credits for meeting specified monthly step goals measured via a step counter. Subsequently, for an additional 3 months, drivers will be incentivized to wear step counters to test if effects of the rewards are sustained once the reward is no longer in place. Effects will be quantified in terms of step activity; and in terms of changes in Body Mass Index (BMI), Resting Heart Rate (HR), Blood Pressure (BP), self-reported General Health, Health-Related Quality of Life (HR-QOL) and work productivity.
- Conditions
- Physical Activity, Incentives
- Being tested
- Incentive-based physical activity program, 3-month follow up
- Keywords
- Physical Activity, Incentives, Mental Accounting, Older adults
- Medical subject headings
- Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Incentive-based physical activity programBehavioural
Drivers will be offered rewards valued at a day's rental for meeting daily step targets over the specified number of days each month from Months 1 to 4, where steps will be tracked by a step counter. They will also be offered incentives for meeting the following criteria:
- Accurately predicting step target attainment the following months (SGD10)
- Wearing and providing step data over the month (SGD10 and a chance to win 1 of 3 cash prizes valued at SGD500)
3-month follow upBehavioural
After the 4-month RCT, drivers will be incentivized to wear the step counter for another 3 months (i.e. Months 5 to 7) to test if effects of the rewards are sustained once the reward is no longer in place. For wearing their step counter and providing their step data, drivers will receive a modest cash incentive (amounting to SGD10) each month as well as the chance to win 1 of 3 cash prizes valued at SGD500.
| Study group | Role | What they receive |
|---|---|---|
| Cash Only (CO) | Experimental | As part of the Incentive-based physical activity program, drivers assigned to the Cash Only (CO) arm will earn incentives in the form of cash for meeting specified monthly step goals from Months 1 to 4. Receives: Behavioral: Incentive-based physical activity program; Behavioral: 3-month follow up |
| Mental-Accounting (MA) based | Experimental | As part of the Incentive-based physical activity program, drivers assigned to the Mental-Accounting (MA) based arm will receive incentives in the form of taxi rental credits for meeting specified monthly step goals from Months 1 to 4. Receives: Behavioral: Incentive-based physical activity program; Behavioral: 3-month follow up |
What is being measured
The primary outcome is the main question the study is designed to answer.
Steps taken
Steps will be assessed using Fitbit, which has an in-built 3-axis accelerometer that measures motion patterns. This will be evaluated monthly, from pre-Baseline through Month 7.
Measured: 7 months
Secondary outcomes (6)
Body Mass Index (BMI)
BMI will be evaluated using measured height and weight, and will be assessed at Months 0 (Baseline), 4 and 7.
Measured: 7 months
Resting Heart Rate
Resting Heart Rate will be evaluated using a clinically validated machine (Welch Allyn SPOT Vital Signs Monitor), and will be assessed at Months 0 (Baseline), 4 and 7.
Measured: 7 months
Blood Pressure
Blood pressure will be evaluated using a clinically validated machine (Welch Allyn SPOT Vital Signs Monitor), and will be assessed at Months 0 (Baseline), 4 and 7.
Measured: 7 months
Self-reported General Health
Self-reported General Health will be evaluated using a validated survey instrument (SF12), and will be assessed at Months 0 (Baseline), 4 and 7.
Measured: 7 months
Health-Related Quality of Life (HR-QOL)
Health-Related Quality of Life will be evaluated using a validated instrument (EQ-5D), and will be assessed at Months 0 (Baseline), 4 and 7.
Measured: 7 months
Work Productivity
Work Productivity will be evaluated using a validated instrument (Work Productivity Activity Impairment Questionnaire) and other work-related data, and will be assessed throughout Months 0 (Baseline), 4 and 7.
Measured: 7 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Jul 2013 (estimated)
- Study startNov 2013
- Primary completionDec 2015
- Study completionDec 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Physical ActivityStudies of the same condition, open and under way.
- 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
- 314 participants (actual)
Sponsor and investigators
- Lead sponsor
- Duke-NUS Graduate Medical School
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Eric A. Finkelstein, Duke-NUS Graduate Medical School
- Investigators
- Eric A Finkelstein, Ph.D, M.H.A., Principal investigator, Duke-NUS Graduate Medical School
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01892475
- Sponsor's protocol ID
- DPRT/AGE/2010/20
- Acronym
- TAKSI
- Status last verified
- Jan 2016
- First submitted
- 1 Jul 2013
- Last updated
- 5 Jan 2016
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 5 Jan 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- TAKing Steps for Incentives (TAKSI) - A Randomized Controlled Trial to Motivate and Sustain Physical Activity Using Financial Incentives
- ClinicalTrials.gov ID
- NCT01892475
- Acronym / sponsor ID
- TAKSI / DPRT/AGE/2010/20
- Conditions
- Physical Activity, Incentives
- Keywords
- Physical Activity, Incentives, Mental Accounting, Older adults
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 314 participants (actual)
- Lead sponsor
- Duke-NUS Graduate Medical SchoolUniversity, hospital or other
- Study start
- Nov 2013
- Primary completion
- Dec 2015 (actual)
- Study completion
- Dec 2015 (actual)
- First posted
- 4 Jul 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to test the overall effects of incentives on physical activity among older taxi drivers, and whether mental accounting exists in this context.
Detailed description
As part of the 4-month Randomized Controlled Trial, participating taxi drivers will be assigned to 1 of 2 groups where they will receive either cash or taxi rental credits for meeting specified monthly step goals measured via a step counter. Subsequently, for an additional 3 months, drivers will be incentivized to wear step counters to test if effects of the rewards are sustained once the reward is no longer in place. Effects will be quantified in terms of step activity; and in terms of changes in Body Mass Index (BMI), Resting Heart Rate (HR), Blood Pressure (BP), self-reported General Health, Health-Related Quality of Life (HR-QOL) and work productivity.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Cash Only (CO) | Experimental | Behavioral: Incentive-based physical activity program, Behavioral: 3-month follow upAs part of the Incentive-based physical activity program, drivers assigned to the Cash Only (CO) arm will earn incentives in the form of cash for meeting specified monthly step goals from Months 1 to 4. |
| Mental-Accounting (MA) based | Experimental | Behavioral: Incentive-based physical activity program, Behavioral: 3-month follow upAs part of the Incentive-based physical activity program, drivers assigned to the Mental-Accounting (MA) based arm will receive incentives in the form of taxi rental credits for meeting specified monthly step goals from Months 1 to 4. |
Who may qualify
- Ages
- 50 to 75 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Must be a taxi driver who is a hirer, and who drives for at least 8 hours daily over 5 days
- Aged between 50 to 75
- English/Mandarin-speaking
Key exclusion criteria (2 listed)
- Report difficulty doing 10 minutes of aerobic activities without stopping, walking up 10 stairs without stopping or performing basic activities of daily living
- Have any medical conditions that limit their ability to walk as a means of physical activity
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 |
|---|---|---|
| Incentive-based physical activity programDrivers will be offered rewards valued at a day's rental for meeting daily step targets over the specified number of days each month from Months 1 to 4, where steps will be tracked by a step counter. They will also be offered incentives for meeting the following criteria: 1. Accurately predicting step target attainment the following months (SGD10) 2. Wearing and providing step data over the month (SGD10 and a chance to win 1 of 3 cash prizes valued at SGD500) | Behavioural | Cash Only (CO), Mental-Accounting (MA) based |
| 3-month follow upAfter the 4-month RCT, drivers will be incentivized to wear the step counter for another 3 months (i.e. Months 5 to 7) to test if effects of the rewards are sustained once the reward is no longer in place. For wearing their step counter and providing their step data, drivers will receive a modest cash incentive (amounting to SGD10) each month as well as the chance to win 1 of 3 cash prizes valued at SGD500. | Behavioural | Cash Only (CO), Mental-Accounting (MA) based |
Primary outcome
Steps taken
Time frame: 7 months
Steps will be assessed using Fitbit, which has an in-built 3-axis accelerometer that measures motion patterns. This will be evaluated monthly, from pre-Baseline through Month 7.
6 secondary outcomes
Body Mass Index (BMI)
Time frame: 7 months
Resting Heart Rate
Time frame: 7 months
Blood Pressure
Time frame: 7 months
Self-reported General Health
Time frame: 7 months
Health-Related Quality of Life (HR-QOL)
Time frame: 7 months
Work Productivity
Time frame: 7 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Jan 2016.
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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.
Eric A Finkelstein, Ph.D, M.H.A. principal investigator
Duke-NUS Graduate Medical School
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Incentive-based physical activity program and 3-month follow up in people with Physical Activity and Incentives, run by Duke-NUS Graduate Medical School at 1 site in Singapore.
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 3 inclusion and 2 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 5 Jan 2016. 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 Singapore. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Steps taken (time frame: 7 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 5 Jan 2016; AzTrials last refreshed its copy on 27 Oct 2026.