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Digital Motivation to Decrease Inactive Behaviour in Patients With Knee Osteoarthritis

Effectiveness of Text Messages for Decreasing Inactive Behavior in Patients With Knee Osteoarthritis: a Pilot Randomised Controlled Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03339011
Enrollment
38
Registered
2017-11-09
Start date
2017-11-14
Completion date
2018-07-29
Last updated
2018-08-02

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

Conditions

Knee Osteoarthritis

Brief summary

Physical inactivity is a major risk behaviour with a potential for causing premature death, particularly among people with mobility limitations, such as knee osteoarthritis. Digital motivational interventions (such as SMS) can motive to a healthy behaviour including increased physical activity. The purpose of this study is to investigate if motivational text messages following an exercise intervention to improve mobility limitations will change the physical activity level in patients with knee osteoarthritis. This study is designed as pilot randomized controlled trial, with equal randomization (1:1). Eligible participants will be randomised into one of two groups (intervention or control) after completing their baseline measurements. The intervention group will receive weekly motivational text messages and the control group will not receive any attention from the study.

Interventions

BEHAVIORALMotivational SMS text message

Motivational text messages delivered to the participants' mobile phones. The text messages contain motivational text and advice on physical activity.

Sponsors

Marius Henriksen
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≤18 * Diagnosed with knee osteoarthritis * Owner of a smart phone or tablet * Have just finished an exercise program for knee osteoarthritis

Exclusion criteria

* Not able to read and understand Danish * Any condition, which in the opinion of the investigator would put the subject at increased safety risk by participation, or otherwise make the subject unsuitable for this study.

Design outcomes

Primary

MeasureTime frameDescription
Change from baseline in physical inactivity6 weeksPhysical inactivity is measured using an accelerometer based activity monitor. Physical activity is defined as time (in minutes) spent inactive, i.e. lying, sitting, standing during a day.

Secondary

MeasureTime frameDescription
Change form baseline in the Knee Injury and Osteoarthritis Outcome Score (KOOS)6 weeksThe Knee injury and Osteoarthritis Outcome Score (KOOS) questionnaire is used to assess patient reported outcomes on pain, function, and quality of life.
Transition questionnaire (TRANS-Q) of perceived change in knee symptoms6 weeksTo investigate if participants experience a change in their osteoarthritis symptoms over time, they will be asked: Pleas answer if you feel that your osteoarthritis symptoms have change for either the better, worse or no changes compared to before you entered this study at the follow-up visit. The Participants can then check a box say: not change, a change for the worse or change for the better
Self-reported change in physical inactivity6 weeksAt the follow-up visit participants will be asked Have you changed your physical activity behaviour after completing the motivational intervention. This question will be asked at the end of the intervention period to investigate if the objective measurement of sedentary behaviour is related to the participants own perceived behaviour.

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026