SuPRA: Using Wearable Activity Trackers With a New Application to Improve Physical Activity in Knee Osteoarthritis

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

51 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-04-01

Study Completion Date

2019-08-26

Brief Summary

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Physical activity is an essential first-line treatment for patients with knee osteoarthritis (OA). However, only 13% of patients meet the activity recommendation of 150 minutes or more per week. The primary goal of this randomized controlled trial is to assess the efficacy of a Fitbit Flex (a wireless physical activity tracking device) paired with a new application, plus a brief education session and telephone counselling by a physiotherapist (PT), to improve physical activity and reduce sedentary time in patients with knee osteoarthritis.

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Detailed Description

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Current practice guidelines emphasize the use of exercise and weight reduction as the first-line management of knee osteoarthritis (OA; affecting 1 in 10 Canadians). However, up to 90% of people with OA are inactive. Several modifiable risk factors are associated with low physical activity participation, including lack of motivation, doubts about the effectiveness of prescribed exercises and lack of health professional advice regarding ways to progress their physical activity. The variety of risk factors highlights the need for a multifaceted approach that provides support in terms of knowledge, skill development and timely advice from health professionals, as well as motivational support to stay active.

Our primary objective is to assess the efficacy of a Fitbit/Fitviz intervention, involving the use of a Fitbit Flex paired with a FitViz application (app), a brief education session, and telephone counselling by a physiotherapist, to improve physical activity participation and reduce sedentary time in people with knee OA. Our secondary objective is to assess the effect of the intervention on patients' OA disease status and self-efficacy in disease management. We will carry out three aims: 1) To develop the FitViz app to pair with Fitbit to enhance user experience; 2) To conduct a pilot test for the Fitbit/FitViz intervention; 3) To evaluate the effect of the Fitbit/FitViz intervention in patients with knee OA. In this proof-of-concept randomized controlled trial (RCT), the investigators hypothesize that compared to a control group (i.e. the Delayed Intervention Group), participants in the Immediate Intervention Group will 1) increase moderate/vigorous physical activity (MVPA) as determined by an objective measure, 2) reduce sedentary time during waking hours, 3) improve in OA disease status, and 4) improve in their self-efficacy of OA management.

The investigators will use a mixed-method approach, involving a RCT and in-depth interviews. The proof-of-concept study will employ a stepped wedge RCT design, whereby the intervention will be sequentially rolled out to participants over a number of time periods. The order in which individuals receive the intervention will be determined at random. The strength of this design is that it can properly address the efficacy question, while avoiding the dilemma of withholding the intervention to some participants, as in a parallel group design.

Conditions

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Joint Diseases Knee Osteoarthritis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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Immediate Intervention Group

Education session, Fitbit/FitViz, PT counselling: Participants receive this intervention in Months 1-3. The session will include a presentation on physical activity, an individual goal-setting session with a registered physiotherapist, and an orientation to the Fitbit Flex and the FitViz app. In Months 1 and 2, participants will use the Fitbit/FitViz. The PT will review the progress with participants via 20-minute bi-weekly phone calls, and progressively modify their activities. In Month 3, participants will continue using the Fitbit/FitViz and have access to a PT via email as needed, but no bi-weekly phone calls. In Months 4-9, participants may continue using the Fitbit/FitViz without access to a PT.

Group Type ACTIVE_COMPARATOR

Education session, Fitbit/FitViz, PT counselling

Intervention Type BEHAVIORAL

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.

Delayed Intervention Group

Same intervention with a 3 month delay: The full intervention will be initiated in Month 4 and with a brief education session, use of a Fitbit Flex paired with the FitViz app, and counseling by a physiotherapist. In Months 6-9, participants will continue using Fitbit/FitViz without the PT phone calls.

Group Type PLACEBO_COMPARATOR

Same intervention with a 3 month delay

Intervention Type BEHAVIORAL

The Delayed Intervention Group will receive the same intervention as the Immediate Intervention Group, but with a 3 month delay.

Interventions

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Education session, Fitbit/FitViz, PT 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.

Intervention Type BEHAVIORAL

Same intervention with a 3 month delay

The Delayed Intervention Group will receive the same intervention as the Immediate Intervention Group, but with a 3 month delay.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Have a physician confirmed diagnosis of knee osteoarthritis OR are both 1) over 50, and 2) have experienced 4 weeks of pain, aching, or discomfort in or around the knee during the last year (equal to or more than 28 separate or consecutive days).
* Have no previous diagnosis of inflammatory arthritis (e.g., rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis), connective tissue diseases, or gout.
* Have no history of using disease-modifying anti-rheumatic drugs, such as hydroxychloroquine, sulfasalazine, methotrexate, biologic agents (e.g., Humira, Enbrel), or gout medications.
* Have no prior knee arthroplasty, and not on a waiting list for total knee replacement surgery.
* Have no history of acute injury to the knee in the past 6 months.
* Have not had surgery in the back, hip, knee, or ankle joints in the past 12 months.
* Have an email address and use online/mobile applications.
* Are able to attend one 1.5-hour education session.

Exclusion Criteria

* Have received a hyaluronate injection in a knee in the last 6 months.
* Have received a steroid injection in a knee in the last 6 months.
* Are at risk when exercising, as identified by the Physical Activity Readiness Questionnaire.

Minimum Eligible Age

19 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No