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OPAM-IA: Using Digital Activity Trackers to Improve Physical Activity in Inflammatory Arthritis

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT02554474
Recruitment Status : Completed
First Posted : September 18, 2015
Results First Posted : June 4, 2021
Last Update Posted : June 21, 2022
Sponsor:
Collaborators:
Simon Fraser University
Arthritis Research Centre of Canada
Vancouver General Hospital
The Arthritis Society, Canada
Fraser Health
Information provided by (Responsible Party):
Linda Li, University of British Columbia

Study Type Interventional
Study Design Allocation: Randomized;   Intervention Model: Crossover Assignment;   Masking: None (Open Label);   Primary Purpose: Supportive Care
Conditions Joint Diseases
Rheumatoid Arthritis
Systemic Lupus Erythematosus
Interventions Behavioral: Education, Fitbit/FitViz, physiotherapist counselling.
Behavioral: Same intervention with a 9-week delay
Enrollment 118
Recruitment Details Recruitment period was 2017-2019. Participants were recruited from the Mary Pack Arthritis Program (Vancouver Coastal Health Authority) and Fraser Health Authority in British Columbia, Canada. Study information was also posted on Facebook, Twitter, Kajiji and Craigslist.
Pre-assignment Details After completing baseline measures at home, participants were randomized to the Immediate or Delay Group in 1:1 allocation ratio.
Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description

Education, Fitbit/FitViz, physiotherapist counselling. These 3 components will be delivered to the participants in Months 1 and 2. The session will include a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants will use the Fitbit/FitViz. The PT will review the progress with participants via bi-weekly phone calls and progressively modify their activities. In Month 3-6, participants will continue using the Fitbit/FitViz and have access to a PT via email as needed, but no bi-weekly phone calls.

Education, Fitbit/FitViz, physiotherapist counselling.: Participants will receive a brief education session, use a physical activity tracker Fitbit Flex with paired with a FitViz app, and remote counseling by a PT. Intervention will be received immediately.

Same intervention with a 2 month delay: The full intervention will be initiated in Month 3 and 4 with a brief education session, use of a Fitbit paired with the FitViz app, and counseling by a PT. In Month 5-6, participants will continue the intervention without the PT phone calls, but will have email access to PT, if needed.

Same intervention with a 2 month delay: The Delayed Intervention Group will receive the same intervention as the Immediate Intervention Group, but with a 2 month delay.

Period Title: Overall Study
Started 59 59
Completed 56 [1] 57 [1]
Not Completed 3 2
Reason Not Completed
Protocol Violation             1             1
Health issue not related to the study             1             0
Withdrawal by Subject             1             1
[1]
Indicates number of participants who completed assessment at the primary endpoint.
Arm/Group Title Immediate Group Delay Group Total
Hide Arm/Group Description Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls. Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls. Total of all reporting groups
Overall Number of Baseline Participants 59 59 118
Hide Baseline Analysis Population Description
[Not Specified]
Age, Continuous  
Mean (Standard Deviation)
Unit of measure:  Years
Number Analyzed 59 participants 59 participants 118 participants
53.5  (14.7) 53.1  (12.6) 53.3  (13.6)
Sex: Female, Male  
Measure Type: Count of Participants
Unit of measure:  Participants
Number Analyzed 59 participants 59 participants 118 participants
Female
51
  86.4%
54
  91.5%
105
  89.0%
Male
8
  13.6%
5
   8.5%
13
  11.0%
Race and Ethnicity Not Collected   [1] 
Measure Type: Count of Participants
Unit of measure:  Participants
Number Analyzed 0 participants 0 participants 0 participants
0
[1]
Measure Analysis Population Description: Race and Ethnicity were not collected from any participant.
Race and Ethnicity Not Collected   [1] 
Measure Type: Count of Participants
Unit of measure:  Participants
Number Analyzed 0 participants 0 participants 0 participants
0
[1]
Measure Analysis Population Description: Race and Ethnicity were not collected from any participant.
Region of Enrollment  
Measure Type: Number
Unit of measure:  Participants
Canada Number Analyzed 59 participants 59 participants 118 participants
59 59 118
Region of Enrollment  
Measure Type: Number
Unit of measure:  Participants
Canada Number Analyzed 59 participants 59 participants 118 participants
59 59 118
Daily time in moderate/vigorous physical activity  
Mean (Standard Deviation)
Unit of measure:  Minutes
Number Analyzed 59 participants 59 participants 118 participants
37.8  (39.6) 31.6  (42.7) 34.7  (41.1)
Time in purposeful activity  
Mean (Standard Deviation)
Unit of measure:  Minutes
Number Analyzed 59 participants 59 participants 118 participants
13.0  (20.4) 11.2  (24.5) 12.1  (22.5)
Daily steps  
Mean (Standard Deviation)
Unit of measure:  Steps
Number Analyzed 59 participants 59 participants 118 participants
5900.8  (3214.1) 5605.7  (2865.1) 5753.2  (3035.2)
Daily sedentary time  
Mean (Standard Deviation)
Unit of measure:  Minutes
Number Analyzed 59 participants 59 participants 118 participants
491.6  (192.5) 523.0  (194.4) 507.3  (193.3)
McGill Pain Questionnaire   [1] 
Mean (Standard Deviation)
Unit of measure:  Units on a scale
Number Analyzed 59 participants 59 participants 118 participants
13.3  (10.8) 13.9  (9.5) 13.6  (10.1)
[1]
Measure Description: McGill Pain Questionnaire (range 0-45; lower score = less severe pain)
Fatigue Severity Scale   [1] 
Mean (Standard Deviation)
Unit of measure:  Units on a scale
Number Analyzed 59 participants 59 participants 118 participants
4.8  (1.4) 4.9  (1.3) 4.8  (1.3)
[1]
Measure Description: Fatigue Severity Scale (range 1-7; lower score = less fatigue)
Partners in Health   [1] 
Mean (Standard Deviation)
Unit of measure:  Units on a scale
Number Analyzed 59 participants 59 participants 118 participants
72.8  (11.7) 73.5  (12.2) 73.1  (11.9)
[1]
Measure Description: Partners in Health (range 0-96; higher score = higher perceived confidence and ability in self-care)
Patient Health Questionnaire (PHQ-9)   [1] 
Mean (Standard Deviation)
Unit of measure:  Units on a scale
Number Analyzed 59 participants 59 participants 118 participants
7.6  (5.9) 8.1  (5.6) 7.8  (5.7)
[1]
Measure Description: PHQ-9; range 0-27; lower score = less depressive symptoms
Self-Reported Habit Index   [1] 
Mean (Standard Deviation)
Unit of measure:  Units on a scale
Sitting at work subscale Number Analyzed 59 participants 59 participants 118 participants
4.5  (1.7) 4.6  (1.8) 4.5  (1.7)
Sitting at leisure subscale Number Analyzed 59 participants 59 participants 118 participants
4.7  (1.4) 4.7  (1.3) 4.7  (1.3)
Walking subscale Number Analyzed 59 participants 59 participants 118 participants
4.1  (1.8) 3.7  (1.6) 3.9  (1.7)
[1]
Measure Description: Self-Reported Habit Index (range 1-7; higher score = stronger habit)
1.Primary Outcome
Title Daily Time in Moderate/Vigorous Physical Activity
Hide Description Time spent in Moderate/Vigorous Physical Activity (MVPA) was measured with a SenseWear Mini sensor over a 7-day period. The mean time was calculated in bouted MVPA per day. A bout is defined as >= 10 consecutive minutes or more at the level of >= 3 METs (i.e., the lower bound of MVPA), with allowance for interruption of up to two minutes below the threshold.
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
Hide Outcome Measure Data
Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: Minutes
Baseline Number Analyzed 59 participants 59 participants
37.8  (39.6) 31.6  (42.7)
9 weeks Number Analyzed 55 participants 57 participants
44.7  (41.2) 31.6  (32.4)
18 weeks Number Analyzed 51 participants 56 participants
43.2  (48.2) 32.8  (36.8)
27 weeks Number Analyzed 50 participants 52 participants
37.8  (38.8) 34.0  (36.1)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, we used analysis of covariance (ANCOVA) to estimate an adjusted mean difference comparing time in MVPA at 9 weeks (primary end point) between groups, adjusting for baseline MVPA, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value 9.4
Confidence Interval (2-Sided) 95%
-0.5 to 19.3
Estimation Comments [Not Specified]
2.Secondary Outcome
Title Time Spent in Sedentary Activity
Hide Description Time spent in sedentary activity was measured with a SenseWear Mini sensor over a 7-day period. The mean daily time spent in sedentary activity was calculated with an energy expenditure of <=1.5 METs, occurring in bouts of >= 20 minutes during waking hours.
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
Hide Outcome Measure Data
Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: Minutes
Baseline Number Analyzed 59 participants 59 participants
491.6  (192.5) 523.0  (194.4)
9 weeks Number Analyzed 55 participants 57 participants
508.4  (203.5) 530.0  (180.2)
18 weeks Number Analyzed 51 participants 56 participants
507.8  (195.8) 531.4  (165.4)
27 weeks Number Analyzed 50 participants 52 participants
506.8  (179.7) 498.0  (155.6)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, we used analysis of covariance (ANCOVA) to estimate an adjusted mean difference comparing sedentary time at 9 weeks (primary end point) between groups, adjusting for baseline sedentary time, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value -10.4
Confidence Interval (2-Sided) 95%
-53.4 to 32.6
Estimation Comments [Not Specified]
3.Secondary Outcome
Title Fatigue Severity Scale
Hide Description The Fatigue Severity Scale consists of 9 questions and measures the impact of fatigue. A total score is calculated by averaging the rating from each question. Range 1-7; lower score = less fatigue.
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
Hide Outcome Measure Data
Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: score on a scale
Baseline Number Analyzed 59 participants 59 participants
4.8  (1.4) 4.9  (1.3)
9 weeks Number Analyzed 55 participants 57 participants
4.5  (1.3) 4.9  (1.3)
18 weeks Number Analyzed 51 participants 56 participants
4.8  (1.3) 4.6  (1.5)
27 weeks Number Analyzed 50 participants 52 participants
4.5  (1.4) 4.7  (1.4)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, we used analysis of covariance (ANCOVA) to estimate an adjusted mean difference comparing time in the Fatigue Severity Scale at 9 weeks (primary end point) between groups, adjusting for baseline fatigue score, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value -0.31
Confidence Interval (2-Sided) 95%
-0.63 to 0.01
Estimation Comments [Not Specified]
4.Secondary Outcome
Title McGill Pain Questionnaire Short Form (MPQ-SF)
Hide Description The MPQ-SF contains 15 pain-related words, which can be rated from 0 to 3. Range 0 - 45; higher=more severe pain.
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
Hide Outcome Measure Data
Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: score on a scale
Baseline Number Analyzed 59 participants 59 participants
13.3  (10.8) 13.9  (9.5)
9 weeks Number Analyzed 55 participants 57 participants
10.9  (8.4) 14.6  (9.7)
18 weeks Number Analyzed 51 participants 56 participants
10.6  (9.6) 12.6  (10.0)
27 weeks Number Analyzed 50 participants 52 participants
11.8  (10.0) 11.0  (9.8)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, we used analysis of covariance (ANCOVA) to estimate an adjusted mean difference comparing pain at 9 weeks (primary end point) between groups, adjusting for pain score, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value -2.45
Confidence Interval (2-Sided) 95%
-4.78 to -0.13
Estimation Comments [Not Specified]
5.Secondary Outcome
Title The Patient Health Questionnaire-9 (PHQ-9)
Hide Description The PHQ-9 consists of nine questions (rated from 0 to 3) that correspond to nine diagnostic criteria for major depressive disorder. Range 0-27; lower score = less depressive symptoms),
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
Hide Outcome Measure Data
Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: score on a scale
Baseline Number Analyzed 59 participants 59 participants
7.6  (5.9) 8.1  (5.6)
9 weeks Number Analyzed 55 participants 57 participants
6.8  (5.6) 7.9  (5.7)
18 weeks Number Analyzed 51 participants 56 participants
6.0  (5.0) 6.2  (5.4)
27 weeks Number Analyzed 50 participants 52 participants
5.2  (3.8) 6.7  (5.9)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, we used analysis of covariance (ANCOVA) to estimate an adjusted mean difference comparing the PHQ-9 scores at 9 weeks (primary end point) between groups, adjusting for baseline score, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value -0.22
Confidence Interval (2-Sided) 95%
-1.78 to 1.35
Estimation Comments [Not Specified]
6.Secondary Outcome
Title Partners In Health Scale
Hide Description The Partners in Health Scale is a 12-item measure designed to assess self-efficacy, knowledge of health conditions and treatment, and self-management behaviors such as adopting a healthy lifestyle. Range 0-96; higher score = higher perceived confidence and ability in self-care.
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
Hide Outcome Measure Data
Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: score on a scale
Baseline 72.8  (11.7) 73.5  (12.2)
9 weeks 75.5  (12.5) 74.6  (11.2)
18 weeks 77.7  (11.4) 78.7  (10.8)
27 weeks 77.9  (12.6) 77.4  (10.7)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, we used analysis of covariance (ANCOVA) to estimate an adjusted mean difference comparing the Partners In Health Scale scores at 9 weeks (primary end point) between groups, adjusting for baseline score, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value 1.58
Confidence Interval (2-Sided) 95%
-1.02 to 4.18
Estimation Comments [Not Specified]
7.Secondary Outcome
Title The Self-Reported Habit Index (SRHI) - Sitting at Work Index
Hide Description The SRHI is a 12-item scale, rated on a 7-point Likert scale, that measures characteristics of habitual behavior. Participants rated their strength of habit of sitting at work. A higher score indicates a stronger habit or behavior that is done frequently, automatically, and done without thinking about it. Range 1-7; higher score = stronger habit.
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
Hide Outcome Measure Data
Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: score on a scale
Baseline 4.5  (1.7) 4.6  (1.8)
9 weeks 4.3  (1.8) 4.7  (1.7)
18 weeks 4.6  (1.7) 4.6  (1.8)
27 weeks 4.4  (1.4) 4.6  (1.7)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, analysis of covariance (ANCOVA) was used to estimate an adjusted mean difference comparing the Sitting at Work index scores at 9 weeks (primary end point) between groups, adjusting for baseline score, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value 0.05
Confidence Interval (2-Sided) 95%
-0.05 to 0.16
Estimation Comments [Not Specified]
8.Secondary Outcome
Title The Self-Reported Habit Index (SRHI) - Sitting at Leisure Index
Hide Description The SRHI is a 12-item scale, rated on a 7-point Likert scale, that measures characteristics of habitual behavior. Participants rated their strength of habit of sitting at leisure. A higher score indicates a stronger habit or behavior that is done frequently, automatically, and done without thinking about it. Range 1-7; higher score = stronger habit.
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
Hide Outcome Measure Data
Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: score on a scale
Baseline Number Analyzed 59 participants 59 participants
4.7  (1.4) 4.7  (1.3)
9 weeks Number Analyzed 55 participants 57 participants
4.7  (1.3) 4.8  (1.4)
18 weeks Number Analyzed 51 participants 56 participants
4.6  (1.3) 4.8  (1.2)
27 weeks Number Analyzed 50 participants 52 participants
4.6  (1.3) 4.7  (1.4)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, analysis of covariance (ANCOVA) was used to estimate an adjusted mean difference comparing the Sitting at Leisure index scores at 9 weeks (primary end point) between groups, adjusting for baseline score, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value 0
Confidence Interval (2-Sided) 95%
-0.37 to 0.37
Estimation Comments [Not Specified]
9.Secondary Outcome
Title The Self-Reported Habit Index (SRHI) - Walking Index
Hide Description The SRHI is a 12-item scale, rated on a 7-point Likert scale, that measures characteristics of habitual behavior. Participants rated their strength of walking habit. A higher score indicates a stronger habit or behavior that is done frequently, automatically, and done without thinking about it. Range 1-7; higher score = stronger habit.
Time Frame Baseline, 9 weeks, 18 weeks, 27 weeks
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Hide Analysis Population Description

59 participants were randomized into each group. Week 9: Immediate Group - 3 withdrew;1 with missing data. Delay Group - 2 withdrew Week 18: Immediate Group - 3 additional participants withdrew; 2 with missing data. Delay Group - 1 additional participant withdrew.

Week 27: Immediate Group - 1 additional participants withdrew, Delay Group - no additional participant withdrew; 6 with missing data.

Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description:
Education, Fitbit/FitViz, physiotherapist counselling. These 3 components were delivered to the participants in Weeks 1-8. The session included a short presentation about physical activity in everyday life, an individual goal-setting session with a registered PT, and an orientation to the Fitbit and FitViz app. Participants used a Fitbit and the FitViz app. The PT reviewed the progress with participants via bi-weekly counselling phone calls and progressively modify their activities. In Weeks 9-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Same intervention (Education, Fitbit/FitViz, physiotherapist counselling) with a 9-week delay. The full intervention was delivered in Week 10-17. In Weeks 18-26, participants continued using the Fitbit and FitViz and had access to a PT via email as needed, but no bi-weekly phone calls.
Overall Number of Participants Analyzed 59 59
Mean (Standard Deviation)
Unit of Measure: score on a scale
Baseline Number Analyzed 59 participants 59 participants
4.1  (1.8) 3.7  (1.6)
9 weeks Number Analyzed 55 participants 57 participants
4.4  (1.7) 3.6  (1.7)
18 weeks Number Analyzed 51 participants 56 participants
4.3  (1.6) 4.0  (1.6)
27 weeks Number Analyzed 50 participants 52 participants
4.7  (1.5) 4.0  (1.7)
Hide Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Immediate Group, Delay Group
Comments We performed an intent-to-treat analysis. For the main comparison, analysis of covariance (ANCOVA) was used to estimate an adjusted mean difference comparing the Walking index scores at 9 weeks (primary end point) between groups, adjusting for baseline score, diagnosis, and blocking.
Type of Statistical Test Superiority
Comments [Not Specified]
Method of Estimation Estimation Parameter Adjusted difference in mean change
Estimated Value 0.54
Confidence Interval (2-Sided) 95%
0.08 to 0.99
Estimation Comments [Not Specified]
Time Frame 26 weeks
Adverse Event Reporting Description Self-reported adverse events were collected, including muscle pain, ligament sprain, or falls while being physically active, were collected.
 
Arm/Group Title Immediate Group Delay Group
Hide Arm/Group Description Time spent in Moderate/Vigorous Physical Activity (MVPA) was measured with a SenseWear Mini sensor over a 7-day period. The mean time was calculated in bouted MVPA per day. A bout is defined as >= 10 consecutive minutes or more at the level of >= 3 METs (i.e., the lower bound of MVPA), with allowance for interruption of up to two minutes below the threshold. Time spent in sedentary activity was measured with a SenseWear Mini sensor over a 7-day period. The mean daily time spent in sedentary activity was calculated with an energy expenditure of <=1.5 METs, occurring in bouts of >= 20 minutes during waking hours.
All-Cause Mortality
Immediate Group Delay Group
Affected / at Risk (%) Affected / at Risk (%)
Total   0/59 (0.00%)   0/59 (0.00%) 
Hide Serious Adverse Events
Immediate Group Delay Group
Affected / at Risk (%) Affected / at Risk (%)
Total   0/59 (0.00%)   0/59 (0.00%) 
Hide Other (Not Including Serious) Adverse Events
Frequency Threshold for Reporting Other Adverse Events 0%
Immediate Group Delay Group
Affected / at Risk (%) Affected / at Risk (%)
Total   13/59 (22.03%)   10/59 (16.95%) 
Musculoskeletal and connective tissue disorders     
Muscle pain *  10/59 (16.95%)  9/59 (15.25%) 
Ligament sprain *  3/59 (5.08%)  1/59 (1.69%) 
*
Indicates events were collected by non-systematic assessment
A limitation is the inclusion of only individuals with rheumatoid arthritis and systemic lupus erythematosus. We focused on these 2 diseases because of feasibility for recruitment in our community. The findings, however, are not generalizable to people with other types of inflammatory arthritis. Furthermore, the results may not be generalizable to men because 89% of the participants were women.
Certain Agreements
Principal Investigators are NOT employed by the organization sponsoring the study.
There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
Results Point of Contact
Layout table for Results Point of Contact information
Name/Title: Dr. Linda Li
Organization: University of British Columbia
Phone: 604-207-4020
EMail: lli@arthritisresearch.ca
Layout table for additonal information
Responsible Party: Linda Li, University of British Columbia
ClinicalTrials.gov Identifier: NCT02554474    
Other Study ID Numbers: H15-01843
First Submitted: September 16, 2015
First Posted: September 18, 2015
Results First Submitted: April 17, 2021
Results First Posted: June 4, 2021
Last Update Posted: June 21, 2022