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Research article
Patterns of physical activity, adherence to a wearable activity tracker during a 12-week intervention and correlation between physical activity and function in individuals with hip and/or knee osteoarthritis
Elin Östlind
Lunds universitet Medicinska fakulteten
Corresponding Author
ORCiD: https://orcid.org/0000-0001-9725-1786
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
Osteoarthritis is a common joint disorder causing pain, functional limitations and an increased risk of comorbidities. Physical activity (PA) is the standard treatment but the majority of individuals with OA do not meet the recommended levels of PA (150 min/week). Monitoring PA with a wearable activity tracker (WAT) could promote PA but increased knowledge on PA patterns and usage of a WAT is needed. The aim of this study was to describe PA patterns and adherence to using a WAT among participants of working age with hip and/or knee OA, during a 12-week intervention. In addition, this study explores the correlation between baseline joint function and subsequent PA.
Methods
Individuals of working age with hip and/or knee OA (n = 75) who used a WAT, Fitbit Flex 2, for 12 weeks as part of an intervention in a cluster-randomized controlled trial were included. Participants were encouraged to monitor their PA in the Fitbit-app. An activity goal of 7,000 steps per day was set. Activity data was collected from the Fitbit. HOOS/KOOS were completed at baseline.
Results
Participants walked on average 10 593 (SD 3431) steps per day, spent 336.0 (SD 249.9) minutes in moderate/vigorous (MV) PA and used the Fitbit for 88.4% of the 12-week intervention period. Steps per day decreased significantly over the 12 weeks (β-coefficient − 117, 95% CI -166 to -68, p = < 0.001) as well as MVPA per week (β-coefficient − 3.5, 95% CI -6.5 to -0.5, p = 0.02) and adherence to using the Fitbit (β-coefficient − 1.3, 95% CI -1.8 to -0.8, p = < 0.001). There were no significant correlations between baseline function (HOOS/KOOS) and subsequent PA.
Conclusion
The majority of participants reached 7,000 steps/day and the recommended 150 minutes in MVPA per week. However, weekly PA decreased gradually over time. Adherence to using the Fitbit was high but also decreased during the intervention. Understanding PA-patterns and the use of a Fitbit to promote PA could be beneficial in tailoring interventions for individuals with hip and/or knee OA.
Trial registration
The C-RCT was registered in ClinicalTrials.gov. Registration number: NCT03354091. Registered 11/27/2017.
Keywords
Hip osteoarthritis, knee osteoarthritis, physical activity, wearable activity tracker, mhealth, Fitbit
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CURRENT STATUS: Under Review
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Posted 18 Sep, 2020
No community comments so far
Editorial decision: Major revision
On 16 Oct, 2020
Review #1 received
Received 14 Oct, 2020
Review #2 received
Received 14 Oct, 2020
Reviewer #2 agreed
On 26 Sep, 2020
Reviewer #1 agreed
On 18 Sep, 2020
Reviewers invited
Invitations sent on 17 Sep, 2020
Editor assigned
On 02 Sep, 2020
First submitted
On 01 Sep, 2020
Submission checks complete
On 01 Sep, 2020
Editor invited
On 01 Sep, 2020
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Subject Areas
Health Economics & Outcomes Research
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This preprint is under consideration at BMC Musculoskeletal Disorders. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Patterns of physical activity, adherence to a wearable activity tracker during a 12-week intervention and correlation between physical activity and function in individuals with hip and/or knee osteoarthritis
Elin Östlind
Lunds universitet Medicinska fakulteten
Corresponding Author
ORCiD: https://orcid.org/0000-0001-9725-1786
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 18 Sep, 2020
No community comments so far
Editorial decision: Major revision
On 16 Oct, 2020
Review #1 received
Received 14 Oct, 2020
Review #2 received
Received 14 Oct, 2020
Reviewer #2 agreed
On 26 Sep, 2020
Reviewer #1 agreed
On 18 Sep, 2020
Reviewers invited
Invitations sent on 17 Sep, 2020
Editor assigned
On 02 Sep, 2020
First submitted
On 01 Sep, 2020
Submission checks complete
On 01 Sep, 2020
Editor invited
On 01 Sep, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Health Economics & Outcomes Research
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
Osteoarthritis is a common joint disorder causing pain, functional limitations and an increased risk of comorbidities. Physical activity (PA) is the standard treatment but the majority of individuals with OA do not meet the recommended levels of PA (150 min/week). Monitoring PA with a wearable activity tracker (WAT) could promote PA but increased knowledge on PA patterns and usage of a WAT is needed. The aim of this study was to describe PA patterns and adherence to using a WAT among participants of working age with hip and/or knee OA, during a 12-week intervention. In addition, this study explores the correlation between baseline joint function and subsequent PA.
Methods
Individuals of working age with hip and/or knee OA (n = 75) who used a WAT, Fitbit Flex 2, for 12 weeks as part of an intervention in a cluster-randomized controlled trial were included. Participants were encouraged to monitor their PA in the Fitbit-app. An activity goal of 7,000 steps per day was set. Activity data was collected from the Fitbit. HOOS/KOOS were completed at baseline.
Results
Participants walked on average 10 593 (SD 3431) steps per day, spent 336.0 (SD 249.9) minutes in moderate/vigorous (MV) PA and used the Fitbit for 88.4% of the 12-week intervention period. Steps per day decreased significantly over the 12 weeks (β-coefficient − 117, 95% CI -166 to -68, p = < 0.001) as well as MVPA per week (β-coefficient − 3.5, 95% CI -6.5 to -0.5, p = 0.02) and adherence to using the Fitbit (β-coefficient − 1.3, 95% CI -1.8 to -0.8, p = < 0.001). There were no significant correlations between baseline function (HOOS/KOOS) and subsequent PA.
Conclusion
The majority of participants reached 7,000 steps/day and the recommended 150 minutes in MVPA per week. However, weekly PA decreased gradually over time. Adherence to using the Fitbit was high but also decreased during the intervention. Understanding PA-patterns and the use of a Fitbit to promote PA could be beneficial in tailoring interventions for individuals with hip and/or knee OA.
Trial registration
The C-RCT was registered in ClinicalTrials.gov. Registration number: NCT03354091. Registered 11/27/2017.
Figure 1
Figure 2
Figure 3