Trial Outcomes & Findings for Increasing Activity Post-Kidney Transplant With SystemCHANGE (NCT NCT03191630)

NCT ID: NCT03191630

Last Updated: 2021-03-23

Results Overview

Steps were averaged per day.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

60 participants

Primary outcome timeframe

(T2) 3months, (T3) 6months, & (T4)12 months

Results posted on

2021-03-23

Participant Flow

There was no pre-assignment.

Participant milestones

Participant milestones
Measure
Control
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
This arm includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE \& activity tracker intervention SystemCHANGE \& Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to be encouraged to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. Participants will continue for months, after which time there will be a final group session.
Overall Study
STARTED
30
30
Overall Study
COMPLETED
23
23
Overall Study
NOT COMPLETED
7
7

Reasons for withdrawal

Reasons for withdrawal
Measure
Control
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
This arm includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE \& activity tracker intervention SystemCHANGE \& Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to be encouraged to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. Participants will continue for months, after which time there will be a final group session.
Overall Study
Lost to Follow-up
7
7

Baseline Characteristics

We met our recruitment target

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes..
Total
n=53 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
15 Participants
n=5 Participants
12 Participants
n=7 Participants
27 Participants
n=5 Participants
Age, Categorical
>=65 years
11 Participants
n=5 Participants
15 Participants
n=7 Participants
26 Participants
n=5 Participants
Age, Continuous
65.1 years
STANDARD_DEVIATION 4.0 • n=5 Participants
65.7 years
STANDARD_DEVIATION 4.9 • n=7 Participants
65.4 years
STANDARD_DEVIATION 4.4 • n=5 Participants
Sex: Female, Male
Female
7 Participants
n=5 Participants
16 Participants
n=7 Participants
23 Participants
n=5 Participants
Sex: Female, Male
Male
19 Participants
n=5 Participants
11 Participants
n=7 Participants
30 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants • We met our recruitment target
1 Participants
n=7 Participants • We met our recruitment target
1 Participants
n=5 Participants • We met our recruitment target
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants • We met our recruitment target
0 Participants
n=7 Participants • We met our recruitment target
0 Participants
n=5 Participants • We met our recruitment target
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants • We met our recruitment target
0 Participants
n=7 Participants • We met our recruitment target
0 Participants
n=5 Participants • We met our recruitment target
Race (NIH/OMB)
Black or African American
10 Participants
n=5 Participants • We met our recruitment target
10 Participants
n=7 Participants • We met our recruitment target
20 Participants
n=5 Participants • We met our recruitment target
Race (NIH/OMB)
White
14 Participants
n=5 Participants • We met our recruitment target
16 Participants
n=7 Participants • We met our recruitment target
30 Participants
n=5 Participants • We met our recruitment target
Race (NIH/OMB)
More than one race
2 Participants
n=5 Participants • We met our recruitment target
0 Participants
n=7 Participants • We met our recruitment target
2 Participants
n=5 Participants • We met our recruitment target
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants • We met our recruitment target
0 Participants
n=7 Participants • We met our recruitment target
0 Participants
n=5 Participants • We met our recruitment target
Region of Enrollment
United States
26 participants
n=5 Participants
27 participants
n=7 Participants
53 participants
n=5 Participants
Steps per Day
4171 steps per day
STANDARD_DEVIATION 1709 • n=5 Participants
4432 steps per day
STANDARD_DEVIATION 1865 • n=7 Participants
4302 steps per day
STANDARD_DEVIATION 1787 • n=5 Participants
Systolic Blood Pressure
150.2 mmHg
STANDARD_DEVIATION 19.05 • n=5 Participants
141.8 mmHg
STANDARD_DEVIATION 24.28 • n=7 Participants
146 mmHg
STANDARD_DEVIATION 21.66 • n=5 Participants
Diastolic Blood Pressure (mmHg
79.64 mmHg
STANDARD_DEVIATION 10.02 • n=5 Participants
80.16 mmHg
STANDARD_DEVIATION 14.82 • n=7 Participants
80.1 mmHg
STANDARD_DEVIATION 12.4 • n=5 Participants
Heart Rate (beats per minute)
74.36 beats per minute
STANDARD_DEVIATION 10.83 • n=5 Participants
70.68 beats per minute
STANDARD_DEVIATION 10.36 • n=7 Participants
72.62 beats per minute
STANDARD_DEVIATION 10.4 • n=5 Participants
Weight (pounds)
194.4 pounds
STANDARD_DEVIATION 40.84 • n=5 Participants
189.4 pounds
STANDARD_DEVIATION 36.3 • n=7 Participants
191.6 pounds
STANDARD_DEVIATION 38.6 • n=5 Participants
Waist Circumference (centimeters
40.94 centimeters
STANDARD_DEVIATION 5.13 • n=5 Participants
40.54 centimeters
STANDARD_DEVIATION 5.21 • n=7 Participants
40.6 centimeters
STANDARD_DEVIATION 5.18 • n=5 Participants
Quality of Life Physical Function
43.03 scores on a scale, ranging from "0-100"
STANDARD_DEVIATION 10.07 • n=5 Participants
41.53 scores on a scale, ranging from "0-100"
STANDARD_DEVIATION 9.49 • n=7 Participants
42.3 scores on a scale, ranging from "0-100"
STANDARD_DEVIATION 9.78 • n=5 Participants
Quality of Life Mental Health
54.61 scores on a scale ranging from "0 - 100"
STANDARD_DEVIATION 9.38 • n=5 Participants
53.68 scores on a scale ranging from "0 - 100"
STANDARD_DEVIATION 9.17 • n=7 Participants
54.1 scores on a scale ranging from "0 - 100"
STANDARD_DEVIATION 9.2 • n=5 Participants
Body mass index
30.5 kg/m^2
STANDARD_DEVIATION 5.2 • n=5 Participants
31.1 kg/m^2
STANDARD_DEVIATION 5.9 • n=7 Participants
30.8 kg/m^2
STANDARD_DEVIATION 5.5 • n=5 Participants

PRIMARY outcome

Timeframe: (T2) 3months, (T3) 6months, & (T4)12 months

Population: Descriptive statistics were used to analyze the monthly average for daily steps at 12 months.

Steps were averaged per day.

Outcome measures

Outcome measures
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. .
Steps Taken Per Day by Using an Activity Tracker
(T3) 6months
4157 average of steps per day
Standard Deviation 2931
4981 average of steps per day
Standard Deviation 3028
Steps Taken Per Day by Using an Activity Tracker
(T4) 12months
3608 average of steps per day
Standard Deviation 2985
4766 average of steps per day
Standard Deviation 3114
Steps Taken Per Day by Using an Activity Tracker
(T2) 3months
4710 average of steps per day
Standard Deviation 2628
5708 average of steps per day
Standard Deviation 3586

SECONDARY outcome

Timeframe: (T2) 3months, (T3) 6months, & (T4)12 months

Population: Mixed-effects linear regression modeling was used to model the Six Minute Walk Test as a linear combination of the fixed-effects of group (intervention vs. attention-control).

A section of 98 feet was marked off on a hard flat surface using two orange cones. Participants were asked to walk at a comfortable pace for 6-minutes between the cones while being timed, and the distance walked was recorded in feet.

Outcome measures

Outcome measures
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. .
Six Minute Walk Test
(T3) 6 Months
1204 Feet
Standard Deviation 266.6
1142 Feet
Standard Deviation 295.0
Six Minute Walk Test
(T2) 3Months
1142 Feet
Standard Deviation 337.1
1158 Feet
Standard Deviation 235.9
Six Minute Walk Test
(T4) 12 Months
1146 Feet
Standard Deviation 264.7
1120 Feet
Standard Deviation 259.4

SECONDARY outcome

Timeframe: (T2) 3months, (T3) 6months, & (T4)12 months

Population: We used mixed-effects linear regression modeling to derive estimates for the resting blood pressure.

Resting blood pressure will be measured on each participant in a seated position using a Withings blood pressure cuff by the research staff. The research staff collecting the resting blood pressure reading will be a registered nurse. The research staff collecting the readings will be blinded to the study groups.

Outcome measures

Outcome measures
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. .
Resting Blood Pressure
(T2) 3 months Systolic Blood Pressure (Unit of Measure: mmHg)
146.7 (mmHg)
Standard Deviation 18.61
140.7 (mmHg)
Standard Deviation 26.54
Resting Blood Pressure
(T2) 3 months Diastolic Blood Pressure (Unit of Measure: mmHg)
80.52 (mmHg)
Standard Deviation 12.73
79.52 (mmHg)
Standard Deviation 14.47
Resting Blood Pressure
(T3) 6 months Systolic Blood Pressure (Unit of Measure: mmHg)
142.2 (mmHg)
Standard Deviation 12.76
143.3 (mmHg)
Standard Deviation 19.69
Resting Blood Pressure
(T3) 6 months Diastolic Blood Pressure (Unit of Measure: mmHg)
77.20 (mmHg)
Standard Deviation 8.94
78.80 (mmHg)
Standard Deviation 13.10
Resting Blood Pressure
(T4) 12 months Systolic Blood Pressure (Unit of Measure: mmHg)
143.8 (mmHg)
Standard Deviation 16.59
132.2 (mmHg)
Standard Deviation 14.80
Resting Blood Pressure
(T4) 12 months Diastolic Blood Pressure (Unit of Measure: mmHg)
77.38 (mmHg)
Standard Deviation 10.21
74.05 (mmHg)
Standard Deviation 10.19

SECONDARY outcome

Timeframe: (T2) 3months, (T3) 6months, & (T4)12 months

Population: We used mixed-effects linear regression modeling to derive estimates for the quality of life.

Physical and mental component scores, ranging from 0 (lowest level of health) to 100 (highest level of health), are derived from the individual items and was used as study outcomes.

Outcome measures

Outcome measures
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. .
Quality of Life: Physical (Functional) and Mental (Well-being) Health"
Quality of Life (T2) 3 months Physical Function
45.32 score from 0-100
Standard Deviation 7.84
40.37 score from 0-100
Standard Deviation 9.34
Quality of Life: Physical (Functional) and Mental (Well-being) Health"
Quality of Life (T3) 6 months Physical Function
44.69 score from 0-100
Standard Deviation 9.25
40.91 score from 0-100
Standard Deviation 9.97
Quality of Life: Physical (Functional) and Mental (Well-being) Health"
Quality of Life (T4) 12 months Physical Function
45.71 score from 0-100
Standard Deviation 7.93
40.02 score from 0-100
Standard Deviation 8.18
Quality of Life: Physical (Functional) and Mental (Well-being) Health"
Quality of Life Mental Health ( T2) 3 months
53.50 score from 0-100
Standard Deviation 8.03
54.68 score from 0-100
Standard Deviation 8.51
Quality of Life: Physical (Functional) and Mental (Well-being) Health"
Quality of Life Mental Health ( T3) 6 month
53.12 score from 0-100
Standard Deviation 9.87
51.30 score from 0-100
Standard Deviation 8.21
Quality of Life: Physical (Functional) and Mental (Well-being) Health"
Quality of Life Mental Health ( T4) 12 months
50.91 score from 0-100
Standard Deviation 10.69
51.56 score from 0-100
Standard Deviation 9.93

SECONDARY outcome

Timeframe: (T2) 3months, (T3) 6months, & (T4)12 months

Population: We used mixed-effects linear regression modeling to derive estimates for the weight.

Weight was measured without shoes and in light clothing using a digital scale.

Outcome measures

Outcome measures
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. .
Weight (Pounds)
(T2) 3 months (pounds)
193.1 pounds
Standard Deviation 36.63
188.5 pounds
Standard Deviation 37.11
Weight (Pounds)
(T6) 6 months (pounds)
192.6 pounds
Standard Deviation 36.06
186.6 pounds
Standard Deviation 37.67
Weight (Pounds)
(T4) 12 months (pounds)
189.0 pounds
Standard Deviation 35.91
189.3 pounds
Standard Deviation 37.17

SECONDARY outcome

Timeframe: (T2) 3months, (T3) 6months, & (T4)12 months

Population: We used mixed-effects linear regression modeling to derive estimates the resting heart rate.

The research staff will obtain a radial pulse (heart rate) over a 60-second count while the participant remains seated. The research staff collecting the radial pulse reading will be a registered nurse and blinded to the study groups.

Outcome measures

Outcome measures
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. .
Radial Pulse (Beats Per Minute)
(T3) 3 months(beats per minute)
70.20 (beats per minute)
Standard Deviation 12.11
69.08 (beats per minute)
Standard Deviation 8.82
Radial Pulse (Beats Per Minute)
(T3) 6 months(beats per minute)
70.20 (beats per minute)
Standard Deviation 11.11
67.56 (beats per minute)
Standard Deviation 11.30
Radial Pulse (Beats Per Minute)
(T4) 12 months(beats per minute)
67.21 (beats per minute)
Standard Deviation 8.20
66.82 (beats per minute)
Standard Deviation 7.76

SECONDARY outcome

Timeframe: (T2) 3months, (T3) 6months, & (T4)12 months

Population: Mixed-effects linear regression modeling was used to model the BMI.

Body mass index (BMI; kg/m2) will be calculated as \[mass (lb)/ height (in)2 x 703

Outcome measures

Outcome measures
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. .
Body Mass Index (BMI)kg/m2
(T2) 3 months kg/m2
30.3 kg/m2
Standard Error 5.5
31.3 kg/m2
Standard Error 6.1
Body Mass Index (BMI)kg/m2
(T3) 6 months kg/m2
29.5 kg/m2
Standard Error 4.6
30.7 kg/m2
Standard Error 6.4
Body Mass Index (BMI)kg/m2
(T4) 12months kg/m2
28.4 kg/m2
Standard Error 4.4
29.5 kg/m2
Standard Error 8.1

SECONDARY outcome

Timeframe: (T2) 3months, (T3) 6months, & (T4)12 months

Population: We used mixed-effects linear regression modeling to derive estimates for each the WC.

Waist circumference (WC) will be obtained by measuring the individual's circumference halfway between the illac crest and the lower anterior ribs with the person standing upright during expiration.

Outcome measures

Outcome measures
Measure
Control
n=26 Participants
This arm includes participants randomized to the control group who will use activity trackers (Fitbits) only, and not receive the SystemCHANGE intervention. Fitbit (Control): Study procedures include group sessions at the OSU Transplant Clinic with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Session 1 for the control group will be identical to the Intervention with the only exception being that participants in the control group will not be asked to increase their step goal. Throughout their participation, subjects will be asked questions only about their use of the Fitbit activity tracker. The research team will not be in contact with them for 6 months, after which time there will be a final group session.
Intervention
n=27 Participants
This are includes participants randomize to the intervention group who will receive the combination of the SystemCHANGE and activity tracker intervention SystemCHANGE and Fitbit (Intervention): Study procedures include group sessions with 10-12 participants for 6 months and a 6-month maintenance phase without contact from study personnel until month 12. Study personnel will demonstrate proper Fitbit activity tracker use, and teach participants to sync to their smartphone and retrieve data from their Fitbit. Subjects will be called to encourage them to increase their step goal 5% each month. Fitbit activity tracker reports will be reviewed and participants will be asked to identify what people or things influence their physical activity. Subjects will be asked what they are learning about physical activity, their contentment level with current physical activity, and if they want to make changes. .
Health Outcome: Waist Circumference (cm)
(T2) 3 Months (cm)
39.76 cm
Standard Deviation 5.24
39.22 cm
Standard Deviation 5.00
Health Outcome: Waist Circumference (cm)
(T3) 6 Months (cm)
39.08 cm
Standard Deviation 4.92
38.68 cm
Standard Deviation 5.02
Health Outcome: Waist Circumference (cm)
(T4) 12 Months (cm)
38.42 cm
Standard Deviation 4.66
38.70 cm
Standard Deviation 5.42

Adverse Events

Control

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Intervention

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Tara O'Brien

The Ohio State University

Phone: 6142928045

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place