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Behavior Change Techniques (BCTs) to Improve Low Intensity Physical Activity in Older Adults

A Randomized, Controlled Trial to Test Behavior Change Techniques (BCTs) to Improve Low Intensity Physical Activity in Older Adults

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04967313
Enrollment
60
Registered
2021-07-19
Start date
2021-10-05
Completion date
2022-05-31
Last updated
2023-02-01

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

Conditions

Sedentary Behavior

Keywords

Physical Activity, Sedentary Behavior, Behavior Change, Behavior Change Techniques, Virtual, Personalized Trial, Personalized, Feasibility

Brief summary

The purpose of this pilot study is to determine the feasibility of using personalized trial methods in a virtual research study with Northwell employees aged 45-75 years old to increase low-intensity walking by 2,000 steps per day/5 days per week using four behavior change techniques (BCTs), provided in random order, and shown to have been effective in changing physical activity. The study will include a two-week baseline period during which levels of physical activity and adherence to the trial protocol will be evaluated. Individuals meeting adherence criteria will be randomized to the eight-week BCT intervention.

Detailed description

The purpose of this pilot study is to determine the feasibility of using personalized trial methods in a virtual research study with Northwell employees aged 45-75 years old to increase low-intensity walking by 2,000 steps per day/five days per week using four behavior change techniques (BCTs), provided in random order, and shown to have been effective in changing physical activity. This pilot will help determine if a personalized, virtual trial design can have widespread use in future research and clinical practice. The investigators will randomize 60 participants. Participants will complete a two-week baseline period during which they will be asked to wear a Fitbit device all day and night, even while they are sleeping, and to acknowledge receipt of a daily text message that is not an activity prompt. Baseline participants will be instructed to sync their Fitbit device by opening the Fitbit app on their phone at least every two days. After completion of the baseline period, a clinical research coordinator will review individual adherence to Fitbit wear and to survey responses. Adherence to Fitbit wear will be defined as recorded activity of greater than 10 hours a day. Text message adherence will be defined as responding to a given text message. Baseline participants that do not achieve at least 80% adherence of Fitbit wear and text responsiveness during the two weeks of the baseline period will be withdrawn from the study. Those that maintain at least 80% adherence will be randomized to one of their selected behavior change techniques to begin their pilot personalized trial. Participants who are randomized to receive intervention sequences will receive email confirmation including their protocol timeline. Enrollment will continue until up to 60 participants have been randomized. Individuals in the intervention period will receive four BCTs: goal setting, action planning, self-monitoring of behavior, and feedback on behavior. BCTs will be delivered individually to participants over the course of eight weeks in four two-week blocks. The order of BCT administration will be randomized by the study statistician. Participants may receive additional text messages to those outlined above with important reminders to sync their data as needed. Upon completion, participants in the personalized trials phase will receive an individual report that demonstrates their walking responses in relation to their selected BCTs. After receiving the report, clinical research coordinators will contact participants to respond to questions and to obtain feedback about their personalized trials experience.

Interventions

BEHAVIORALBehavioral Change Techniques

Four behavioral changes techniques (BCTs) will be administered to participants in random order. The BCTs are defined as follows: 1. Goal setting: set or agree on a goal defined in terms of behavior to be achieved. Example: Set the goal of walking 2,000 steps more per day. 2. Action planning: prompt detailed planning of performance of behavior (must include a setting \[walking to the mailbox\], frequency, duration, and intensity. Example: Develop a plan to walk today. 3. Self-Monitoring of behavior: establish a method for person to monitor and record their number of steps based on their Fitbit. Example: Did you check your Fitbit and record daily total number of steps? 4. Feedback on behavior: Monitor and provide informative or evaluative feedback on performance of the behavior (e.g. form, frequency, duration, intensity). Example: You walked 6,000 steps today. This is 1,000 steps above your baseline.

Sponsors

National Institute on Aging (NIA)
CollaboratorNIH
Columbia University
CollaboratorOTHER
Northwell Health
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Intervention model description

The order of administration for the 4 Behavioral Change Techniques (BCTs) will be randomized by the study statistician.

Eligibility

Sex/Gender
ALL
Age
45 Years to 75 Years
Healthy volunteers
Yes

Inclusion criteria

* Age 45 - 75 years old of age * Fluent in English * Employed in the Northwell Health system * Community-dwelling * Report they are in good general health, walk regularly and have never been informed by a clinician that it was not advisable/safe to participate in a low-intensity walking program * Owns and can regularly access a smartphone capable of receiving text messages * Owns and can regularly access an e-mail account

Exclusion criteria

* \< 45 years old or \> 75 years old * Unable to speak/comprehend English * Not employed in Northwell Health system * Have self-reported poor health, limited mobility and/or have been advised by a clinician not to increase their low-intensity walking * Pregnancy * Previous diagnosis of a serious mental health condition or psychiatric disorder, such as bipolar disorder

Design outcomes

Primary

MeasureTime frameDescription
Within-person Change in Daily Steps.Steps will be assessed continuously via worn activity tracker. Step counts will be aggregated and analyzed at the daily level. This will yield 70 daily measurements of physical activity over the course of the 10-week study.Participant steps will be assessed continuously using a Fitbit mobile device. Daily steps for participants will be aggregated by baseline and intervention phases to generate average daily steps in each phase. Changes in daily steps between baseline and intervention phases will be compared using Generalized Linear Mixed Model analyses. Changes in daily steps between intervention and baseline will be represented using a regression parameter.
Participant Satisfaction With Personalized Trial Components.Assessed once after completion of the study at 10 weeks.Participants will rate their satisfaction with the Personalized Trial overall and with individual elements of the trial in a satisfaction survey developed for this trial. Participants will rate 9 items assessing satisfaction with methods and process of the trial on a 4-point Likert scale with responses ranging from 0 - Not at all satisfied to 3 - Very satisfied. Higher scores indicate greater levels of satisfaction. Means and standard deviations will be reported for each element of satisfaction.

Secondary

MeasureTime frameDescription
Self-Efficacy for WalkingAssessed at baseline, week 2, week 4, week 6, week 8, and week 10.This will be assessed using the Self-Efficacy for Walking (SE-W) scale,\[1\] an 10-item measure assessing patient's capabilities to walk for durations of 5 to 50 minutes. Items are scored from 0 to 100%, with scores of 0% indicating participants are not at all confident they could walk for that duration and scores of 100% indicating the participants are highly confident they could walk that duration. Items are average to create a total score, with higher scores indicating higher levels of beliefs about capabilities/self-efficacy.
Participant Attitudes and Opinions Towards Personalized Trials.Assessed once after completion of the study at 10 weeks.Participants will be asked via survey about their attitudes and opinions regarding the personalized trial implementation (e.g., Did the trial feel burdensome?). Participants will rate items on a 7-point Likert scale with responses ranging from 0 - Strongly Disagree to 6 - Strongly Agree. Higher scores indicate greater levels of agreement. Scores on each item will be reported with means and standard deviations.

Countries

United States

Participant flow

Pre-assignment details

Participants were consented and entered a 2-week baseline period prior to beginning the intervention. Participants who were not compliant with trial requirements during baseline did not continue to receive the intervention. Data were collected for the overall BCT intervention and not for each individual BCT.

Participants by arm

ArmCount
Behavioral Change Techniques to Increase Walking
Individuals will receive daily text messages with the goal of increasing daily walking by 2,000 more steps five days per week. Participants will be enrolled for a baseline period lasting two weeks where their average daily activity level will be assessed using a Fitbit device to generate an average daily step counts. Following completion of baseline, participants will receive daily text messages of behavior change techniques (BCTs) for eight weeks. The four BCTs utilized in this study are: goal setting, action planning, self-monitoring of behavior, and feedback on behavior. Each BCT will be delivered to participants daily for a two-week block. Four blocks (one BCT per block) will be delivered to the participant. The order in which the BCT interventions are presented to participants will be randomized by the study statistician. The goal of the BCT text messages will be to encourage walking behavior. Behavioral Change Techniques: Four behavioral changes techniques (BCTs) will be administered to participants in random order.
60
Total60

Baseline characteristics

CharacteristicBehavioral Change Techniques to Increase Walking
Age, Customized
45 to 55
31 Participants
Age, Customized
56 to 65
27 Participants
Age, Customized
66 to 75
2 Participants
Age, Customized
Decline to Respond
0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
57 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
4 Participants
Race (NIH/OMB)
Black or African American
5 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
48 Participants
Sex: Female, Male
Female
55 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 60
other
Total, other adverse events
0 / 60
serious
Total, serious adverse events
0 / 60

Outcome results

Primary

Participant Satisfaction With Personalized Trial Components.

Participants will rate their satisfaction with the Personalized Trial overall and with individual elements of the trial in a satisfaction survey developed for this trial. Participants will rate 9 items assessing satisfaction with methods and process of the trial on a 4-point Likert scale with responses ranging from 0 - Not at all satisfied to 3 - Very satisfied. Higher scores indicate greater levels of satisfaction. Means and standard deviations will be reported for each element of satisfaction.

Time frame: Assessed once after completion of the study at 10 weeks.

ArmMeasureGroupValue (MEAN)Dispersion
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.The behavior change techniques (BCTs) assigned to you2.10 Score on a scaleStandard Deviation 0.92
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.The frequency that each BCT was delivered to you (daily)2.38 Score on a scaleStandard Deviation 0.81
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.Video explanations and demonstrations of study devices and procedures2.06 Score on a scaleStandard Deviation 1
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.Text messaging for delivery of study interventions (BCTs)2.42 Score on a scaleStandard Deviation 0.84
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.Text messaging for reminders (e.g. sync your Fitbit)2.59 Score on a scaleStandard Deviation 0.73
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.Text messaging for data collection (i.e. surveys)2.60 Score on a scaleStandard Deviation 0.7
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.Use of the fitbit device to track your activity and sleep2.71 Score on a scaleStandard Deviation 0.56
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.Study communications2.52 Score on a scaleStandard Deviation 0.73
Behavioral Change Techniques to Increase WalkingParticipant Satisfaction With Personalized Trial Components.Presentation of your results2.37 Score on a scaleStandard Deviation 0.88
Primary

Within-person Change in Daily Steps.

Participant steps will be assessed continuously using a Fitbit mobile device. Daily steps for participants will be aggregated by baseline and intervention phases to generate average daily steps in each phase. Changes in daily steps between baseline and intervention phases will be compared using Generalized Linear Mixed Model analyses. Changes in daily steps between intervention and baseline will be represented using a regression parameter.

Time frame: Steps will be assessed continuously via worn activity tracker. Step counts will be aggregated and analyzed at the daily level. This will yield 70 daily measurements of physical activity over the course of the 10-week study.

Population: GLMM Regression for Change in Daily Steps Due to BCT Intervention

ArmMeasureGroupValue (NUMBER)
Behavioral Change Techniques to Increase WalkingWithin-person Change in Daily Steps.Increase in Daily Steps Due to Intervention120.85 Daily Steps
Behavioral Change Techniques to Increase WalkingWithin-person Change in Daily Steps.Standard Error for Regression of Intervention on Daily Steps257.42 Daily Steps
Secondary

Participant Attitudes and Opinions Towards Personalized Trials.

Participants will be asked via survey about their attitudes and opinions regarding the personalized trial implementation (e.g., Did the trial feel burdensome?). Participants will rate items on a 7-point Likert scale with responses ranging from 0 - Strongly Disagree to 6 - Strongly Agree. Higher scores indicate greater levels of agreement. Scores on each item will be reported with means and standard deviations.

Time frame: Assessed once after completion of the study at 10 weeks.

Secondary

Self-Efficacy for Walking

This will be assessed using the Self-Efficacy for Walking (SE-W) scale,\[1\] an 10-item measure assessing patient's capabilities to walk for durations of 5 to 50 minutes. Items are scored from 0 to 100%, with scores of 0% indicating participants are not at all confident they could walk for that duration and scores of 100% indicating the participants are highly confident they could walk that duration. Items are average to create a total score, with higher scores indicating higher levels of beliefs about capabilities/self-efficacy.

Time frame: Assessed at baseline, week 2, week 4, week 6, week 8, and week 10.

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026