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Research article
Effect of quadriceps strengthening exercises alone and in combination with Baduanjin qigong on older adults with knee osteoarthritis: a quasi-experimental study
Zhiguang Duan
Shanxi Medical University
Corresponding Author
License:
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Background
Exercise is recommended as a core treatment for individuals with KOA. However, the optimal exercise program to promote long-term compliance for KOA patients is not clear. The aim of this study is to compare the effects of the combination exercise program (quadriceps strengthening exercises (QSE) plus Baduanjin qigong) versus QSE alone on older adults with knee osteoarthritis (KOA).
Methods
A two-arm, quasi-experimental trial with repeated measurements was used. As a cluster randomized trial, participants from one community center were assigned to combination exercise group while participants from the other center were assigned to QSE group. We assessed pain intensity, physical function, self-efficacy, and HRQoL with standardized instruments at baseline, 3 and 6 months.
Results
87 participants with KOA who aged above 60 completed the study. Over the 6 months, There were significant time by group interaction effects on pain intensity (F = 44.419, p < 0.001), physical function (F = 46.904, p < 0.001) and self-efficacy (F = 49.754, p < 0.001), as well as in the physical component summary (F = 15.205, p < 0.001) and mental component summary of SF-12 (F = 19.205, p < 0.001), with the combination exercise group exhibiting significantly greater improvements in all outcomes than QSE group.
Conclusions
Combination exercise treatment is more effective than QSE for relieving pain, increasing physical functioning, and improving self-efficacy, and quality of life in community-dwelling KOA older adults. Also, it could promote long-term compliance for KOA community patients.
Trial registration
Chinese Clinical Trails Registry number ChiCTR2000033387 (retrospectively registered). Registered 30 May 2020
Keywords
knee osteoarthritis, Baduanjin qigong, quadriceps strengthening exercises
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CURRENT STATUS: Under Review
Version 1
Posted 17 Sep, 2020
No community comments so far
Editorial decision: Major revision
On 18 Nov, 2020
Review #3 received
Received 17 Nov, 2020
Reviewer #3 agreed
On 24 Oct, 2020
Review #2 received
Received 09 Oct, 2020
Review #1 received
Received 09 Oct, 2020
Reviewer #2 agreed
On 21 Sep, 2020
Reviewers invited
Invitations sent on 20 Sep, 2020
Reviewer #1 agreed
On 20 Sep, 2020
Editor assigned
On 17 Sep, 2020
Submission checks complete
On 15 Sep, 2020
Editor invited
On 14 Sep, 2020
First submitted
On 30 Aug, 2020
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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
Effect of quadriceps strengthening exercises alone and in combination with Baduanjin qigong on older adults with knee osteoarthritis: a quasi-experimental study
Zhiguang Duan
Shanxi Medical University
Corresponding Author
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 17 Sep, 2020
No community comments so far
Editorial decision: Major revision
On 18 Nov, 2020
Review #3 received
Received 17 Nov, 2020
Reviewer #3 agreed
On 24 Oct, 2020
Review #2 received
Received 09 Oct, 2020
Review #1 received
Received 09 Oct, 2020
Reviewer #2 agreed
On 21 Sep, 2020
Reviewers invited
Invitations sent on 20 Sep, 2020
Reviewer #1 agreed
On 20 Sep, 2020
Editor assigned
On 17 Sep, 2020
Submission checks complete
On 15 Sep, 2020
Editor invited
On 14 Sep, 2020
First submitted
On 30 Aug, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
Exercise is recommended as a core treatment for individuals with KOA. However, the optimal exercise program to promote long-term compliance for KOA patients is not clear. The aim of this study is to compare the effects of the combination exercise program (quadriceps strengthening exercises (QSE) plus Baduanjin qigong) versus QSE alone on older adults with knee osteoarthritis (KOA).
Methods
A two-arm, quasi-experimental trial with repeated measurements was used. As a cluster randomized trial, participants from one community center were assigned to combination exercise group while participants from the other center were assigned to QSE group. We assessed pain intensity, physical function, self-efficacy, and HRQoL with standardized instruments at baseline, 3 and 6 months.
Results
87 participants with KOA who aged above 60 completed the study. Over the 6 months, There were significant time by group interaction effects on pain intensity (F = 44.419, p < 0.001), physical function (F = 46.904, p < 0.001) and self-efficacy (F = 49.754, p < 0.001), as well as in the physical component summary (F = 15.205, p < 0.001) and mental component summary of SF-12 (F = 19.205, p < 0.001), with the combination exercise group exhibiting significantly greater improvements in all outcomes than QSE group.
Conclusions
Combination exercise treatment is more effective than QSE for relieving pain, increasing physical functioning, and improving self-efficacy, and quality of life in community-dwelling KOA older adults. Also, it could promote long-term compliance for KOA community patients.
Trial registration
Chinese Clinical Trails Registry number ChiCTR2000033387 (retrospectively registered). Registered 30 May 2020
Figure 1
Figure 2
Figure 3
Due to technical limitations, full-text HTML conversion of this manuscript could not be completed. However, the manuscript can be downloaded and accessed as a PDF.