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A Personalized Health Behavior System

A Personalized Health Behavior System to Promote Well-Being in Older Adults (FITTLE)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03538158
Acronym
FITTLESenior
Enrollment
181
Registered
2018-05-25
Start date
2018-11-26
Completion date
2021-10-26
Last updated
2022-10-12

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

Conditions

Aging, Physical Activity, Social Isolation

Keywords

Older adults, Physical well-being, Quality of life

Brief summary

The objectives of this study are to examine the usability and efficacy, for diverse older adults, of a new tablet-based dynamic system: the Fittle Senior System (FSS) that will provide: (1) personalized behavior-change programs for improved diet and increased physical activity and (2) online social interaction and support from small teams pursuing similar goals. The proposed study involves a two group randomized trial where participants will be randomized to the Fittle Senior System or to a paper-based psycho-educational control condition following a baseline assessment. The duration of the intervention phase will involve an active 12-week intervention phase followed by a 12-week maintenance phase. We will recruit and randomize 180 community dwelling adults aged 65+ years, who live alone and are at risk for social isolation. Participants will be assessed at baseline, 3 months post active intervention and 3 months post maintenance (6 months following active intervention) on measures of health and health behaviors, and indices of social support.

Detailed description

The proposed study will evaluate a new tablet-based dynamic system: the Fittle Senior System (FSS) that will provide: (1) personalized, goal-directed behavior-change programs for improved diet and increased physical activity and (2) online social interaction and support from small teams pursuing similar goals. The system builds on two technology-based systems developed by the investigative team: (1) the computer-based PRISM system (Czaja et al., 2015), designed for older populations to support social connectivity and well-being, and (2) the Fittle mobile platform (PARC) designed to support positive health behavior change through integrated online social support and personalized coaching based on artificial intelligence (AI). The Fittle program is based on Self-efficacy and Social Cognitive Theory (Bandura, 1998, 2001), Goal Setting (Locke & Latham, 2002) and the Theory of Planned Behavior (Ajzen, 1991). Fittle provides support for individuals and teams to progress through lifestyle challenges (e.g., poor eating habits, sedentary behavior), helping individuals master one health improving habit after another in a way that builds on previous achievements. Individuals choose from a variety of challenges to accomplish goals via an intelligent coaching agent and personalized, engaging user experiences. The objective is to maintain and reinforce perceived self-efficacy with daily goals that are perceived as being achievable, and to improve motivation and ability with goals that are perceived as not too easy. The program provides encouragement and social support through a team component. Thus, Fittle is designed to reinforce and build self-efficacy and positive attitudes.

Interventions

Participants will have access to Fittle Senior which will provide guided exercises and social support from other participants of the study.

BEHAVIORALControl Condition

Participants will have a paper booklet with suggested exercises that they may choose to complete for the duration of the study.

Sponsors

National Institute on Aging (NIA)
CollaboratorNIH
Florida Institute for Human and Machine Cognition
CollaboratorOTHER
Weill Medical College of Cornell University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* At least 60 years old * Speak English * Able to read at the 6th grade * Plans to remain in the area for the study duration * Pass TICS (Telephone Screen for Cognitive Status)

Exclusion criteria

* Cognitively impaired * Visual or hearing impairment * Actively engaged in structured physical exercise regularly * Health conditions/illness that would affect participation

Design outcomes

Primary

MeasureTime frameDescription
VO2 MaxBaseline, 3 month follow-up and 6 month follow-upHigher score of VO2 max indicates more oxygen consumption during incremental exercise.

Secondary

MeasureTime frameDescription
Timed Up and GoBaseline, 3 month follow-up and 6 month follow-upTo start the TUG, you will sit in the chair with your arms resting comfortably on your lap or at your sides. The test begins when the therapist says Go and starts the stopwatch. You would then be timed as you rise from the chair, walk three meters, turn around, return to the chair, and sit down. The recorded time on the stopwatch is the TUG score. Measure to assess mobility. A faster time indicates a better functional performance. An older adult who takes ≥12 seconds to complete the TUG is at risk for falling.

Other

MeasureTime frameDescription
Change in Functional Health and Well-being as Measured by Modified SF-36Baseline, 3 month follow-up and 6 month follow-upHigher score means better functional health and well-being. Range (0-1400)
Change in Loneliness as Measured by Loneliness ScaleBaseline, 3 month follow-up and 6 month follow-upHigher score indicates a greater degree of loneliness. Range (0-80)
Change in Social Isolation as Measured by Friendship ScaleBaseline, 3 month follow-up and 6 month follow-upMeasures the level of social isolation. Lower score indicates less social isolation. Range (0-24)
Change in Social Support as Measured by Interpersonal Support Evaluation List - ISELBaseline, 3 month follow-up and 6 month follow-upMeasures the level of functional social support. Higher scores indicates better and more social support

Countries

United States

Participant flow

Participants by arm

ArmCount
Intervention Condition - Fittle Senior
Participants will have access to the Fittle Senior System which will provide guided exercises and social support. Intervention Condition: Participants will have access to Fittle Senior which will provide guided exercises and social support from other participants of the study.
92
Control Condition - Paper and Pencil
Participants will have a written booklet with exercises that they may do it on their own. Control Condition: Participants will have a paper booklet with suggested exercises that they may choose to complete for the duration of the study.
89
Total181

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up137
Overall StudyWithdrawal by Subject21

Baseline characteristics

CharacteristicIntervention Condition - Fittle SeniorControl Condition - Paper and PencilTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
70 Participants71 Participants141 Participants
Age, Categorical
Between 18 and 65 years
17 Participants17 Participants34 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants12 Participants24 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
77 Participants76 Participants153 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants0 Participants2 Participants
Race (NIH/OMB)
Black or African American
13 Participants11 Participants24 Participants
Race (NIH/OMB)
More than one race
1 Participants3 Participants4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants1 Participants5 Participants
Race (NIH/OMB)
White
72 Participants74 Participants146 Participants
Sex: Female, Male
Female
74 Participants67 Participants141 Participants
Sex: Female, Male
Male
15 Participants20 Participants35 Participants
Timed Up and Go10.5 Seconds
STANDARD_DEVIATION 3
10.2 Seconds
STANDARD_DEVIATION 2.6
10.4 Seconds
STANDARD_DEVIATION 2.8
VO2 Max16.6 mL/kg/min
STANDARD_DEVIATION 5.4
16.8 mL/kg/min
STANDARD_DEVIATION 4.9
16.7 mL/kg/min
STANDARD_DEVIATION 5.4

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 920 / 89
other
Total, other adverse events
4 / 925 / 89
serious
Total, serious adverse events
3 / 923 / 89

Outcome results

Primary

VO2 Max

Higher score of VO2 max indicates more oxygen consumption during incremental exercise.

Time frame: Baseline, 3 month follow-up and 6 month follow-up

Population: The number analyzed is different than the number of subjects in the participant flow because some participants were loss to follow up, withdrew from the study, or the data was not collected due to COVID-19.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention Condition - Fittle SeniorVO2 Max6 month follow-up20.2 mL/kg/minStandard Deviation 1.4
Intervention Condition - Fittle SeniorVO2 MaxBaseline16.6 mL/kg/minStandard Deviation 5.4
Intervention Condition - Fittle SeniorVO2 Max3 month follow-up15.7 mL/kg/minStandard Deviation 4.4
Control Condition - Paper and PencilVO2 MaxBaseline16.8 mL/kg/minStandard Deviation 4.9
Control Condition - Paper and PencilVO2 Max3 month follow-up18.5 mL/kg/minStandard Deviation 5.6
Control Condition - Paper and PencilVO2 Max6 month follow-up17.3 mL/kg/minStandard Deviation 2
p-value: 0.8295% CI: [-287.7, 299.1]Mixed Models Analysis
Secondary

Timed Up and Go

To start the TUG, you will sit in the chair with your arms resting comfortably on your lap or at your sides. The test begins when the therapist says Go and starts the stopwatch. You would then be timed as you rise from the chair, walk three meters, turn around, return to the chair, and sit down. The recorded time on the stopwatch is the TUG score. Measure to assess mobility. A faster time indicates a better functional performance. An older adult who takes ≥12 seconds to complete the TUG is at risk for falling.

Time frame: Baseline, 3 month follow-up and 6 month follow-up

Population: The number analyzed is different than the number of subjects in the participant flow because some participants were loss to follow up, withdrew from the study, or the data was not collected due to COVID-19.

ArmMeasureGroupValue (MEAN)Dispersion
Intervention Condition - Fittle SeniorTimed Up and GoBaseline10.5 SecondsStandard Deviation 3
Intervention Condition - Fittle SeniorTimed Up and Go3 Month Follow-Up9.2 SecondsStandard Deviation 1.8
Intervention Condition - Fittle SeniorTimed Up and Go6 Month Follow-Up10 SecondsStandard Deviation 2.3
Control Condition - Paper and PencilTimed Up and GoBaseline10 SecondsStandard Deviation 2.6
Control Condition - Paper and PencilTimed Up and Go3 Month Follow-Up8.6 SecondsStandard Deviation 3.9
Control Condition - Paper and PencilTimed Up and Go6 Month Follow-Up8.6 SecondsStandard Deviation 1.1
p-value: 0.9795% CI: [-3.5, 4.4]Mixed Models Analysis
Other Pre-specified

Change in Functional Health and Well-being as Measured by Modified SF-36

Higher score means better functional health and well-being. Range (0-1400)

Time frame: Baseline, 3 month follow-up and 6 month follow-up

Other Pre-specified

Change in Loneliness as Measured by Loneliness Scale

Higher score indicates a greater degree of loneliness. Range (0-80)

Time frame: Baseline, 3 month follow-up and 6 month follow-up

Other Pre-specified

Change in Social Isolation as Measured by Friendship Scale

Measures the level of social isolation. Lower score indicates less social isolation. Range (0-24)

Time frame: Baseline, 3 month follow-up and 6 month follow-up

Other Pre-specified

Change in Social Support as Measured by Interpersonal Support Evaluation List - ISEL

Measures the level of functional social support. Higher scores indicates better and more social support

Time frame: Baseline, 3 month follow-up and 6 month follow-up

Source: ClinicalTrials.gov · Data processed: Feb 7, 2026