The Effect of Theory-lead Intervention for Knee Osteoarthritis in Older Adults: A Cluster Randomized Trial

2020 ◽  
Author(s):  
Limin Wang ◽  
Hongbo Chen ◽  
Han Lu ◽  
Yunlin Wang ◽  
Congying Liu ◽  
...  
Keyword(s):  
Older Adults ◽  
Knee Osteoarthritis ◽  
Transtheoretical Model ◽  
Intervention Group ◽  
Exercise Program ◽  
Exercise Adherence ◽  
Cluster Randomized Trial ◽  
Knee Function ◽  
Control Group ◽  
Cluster Randomized

Abstract Background: Knee osteoarthritis (KOA) is a common joint disease in people over 60 years old. Exercise therapy is one of the most effective non-pharmacological treatments for KOA, but low exercise adherence needs to be improved. The present study aimed to evaluate the effect of the transtheoretical model-lead home exercise intervention (TTM-HEI) program on exercise adherence, KOA symptoms and knee function in older adults with KOA. Methods: A two-arm, superiority, assessor-blinded, cluster randomized trial was conducted. Community-dwelling older adults with KOA were recruited from 14 community centers in Beijing, China via print and social media advertisements from April to October 2018. The intervention was a two-stage and 24-week transtheoretical model-based exercise program, and the control group underwent a same length but non-theory-based exercise program. Exercise adherence was measured by an 11-point numerical self-rating scale at weeks 4, 12, 24, 36, and 48 after the program started. KOA symptoms (pain intensity and joint stiffness) and knee function (lower limb muscle strength and balance) were measured at baseline, week 24, and week 48. Latent growth model (GLM), repeated measures ANOVA and independent t-test were the main statistical tests.Results: A total of 189 older adults (intervention group: n = 103, control group: n = 86) were enrolled. Differences of any outcome measures at baseline were not significant between groups. The growth rate of exercise adherence in the intervention group increased 2.175 units compared with the control group (unstandardized coefficient of slope on group B2 = 2.175, p < 0.001), and the intervention program maintained participants’ exercise adherence with 5.56 (SD = 1.00) compared with 3.16 (SD = 1.31) in the control group at week 48. In addition, TTM-HEI program showed significant effects on relieving KOA symptoms and improving knee function.Conclusion: The TTM-HEI could improve the participants’ exercise adherence, knee osteoarthritis symptoms and knee function over time.

scholarly journals The Effect of Theory-Led Intervention for Knee Osteoarthritis in Older Adults: A Cluster Randomized Trial

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 529-529
Author(s):  
Limin Wang ◽  
Hongbo Chen ◽  
Han Lu ◽  
Jieru Chen ◽  
Shaomei Shang
Keyword(s):  
Older Adults ◽  
Knee Osteoarthritis ◽  
Transtheoretical Model ◽  
Intervention Group ◽  
Exercise Program ◽  
Exercise Adherence ◽  
Cluster Randomized Trial ◽  
Knee Function ◽  
Control Group ◽  
Cluster Randomized

Abstract Knee osteoarthritis (KOA) is a common joint disease in people over 60 years old. Exercise therapy is one of the most effective non-pharmacological treatments for KOA, but low exercise adherence needs to be improved. This two-arm cluster randomized trial study was to evaluate the effect of the transtheoretical model-lead home exercise intervention (TTM-HEI) program on exercise adherence, KOA symptom (pain intensity and joint stiffness) and knee function (lower limb muscle strength and balance) in Chinese older adults diagnosed with KOA. A total of 189 community-dwelling older adults with KOA (intervention group: n = 103, control group: n = 86) were enrolled from 14 community centers in Beijing, China in 2018. The intervention was a two-stage and 24-week transtheoretical model-based exercise program, and the control group underwent a same length but non-theory-based exercise program. Exercise adherence was measured at weeks 4, 12, 24, 36, and 48 after the program started, KOA symptoms and knee function were measured at baseline, week 24, and week 48. Results showed that the growth rate of exercise adherence in the intervention group increased 2.175 units compared with the control group (unstandardized coefficient of slope on group B2 = 2.175, p &lt; 0.001), and the intervention program maintained participants’ exercise adherence with 5.56 (SD = 1.00) compared with 3.16 (SD = 1.31) in the control group at week 48. In addition, TTM-HEI program showed significant effects on relieving KOA symptoms and improving knee function. This study provided an effective strategy for KOA intervention.

The Effect of Transtheoretical Model-lead Intervention for Knee Osteoarthritis in Older Adults: A Cluster Randomized Trial

2020 ◽  
Author(s):  
Limin Wang ◽  
Hongbo Chen ◽  
Han Lu ◽  
Yunlin Wang ◽  
Congying Liu ◽  
...  
Keyword(s):  
Older Adults ◽  
Transtheoretical Model ◽  
Intervention Group ◽  
Exercise Program ◽  
Exercise Adherence ◽  
Cluster Randomized Trial ◽  
Knee Function ◽  
Home Exercise ◽  
Control Group ◽  
Cluster Randomized

Abstract Background: Knee osteoarthritis (KOA) is a common joint disease in people over 60 years old. Exercise therapy is one of the most effective non-pharmacological treatments for KOA, but low exercise adherence needs to be improved. The present study aimed to evaluate the effect of the Transtheoretical Model-lead home exercise intervention (TTM-HEI) program on exercise adherence, KOA symptoms, and knee function in older adults with KOA. Methods: A two-arm, superiority, assessor-blinded, cluster randomized trial was conducted. Community-dwelling older adults with KOA were recruited from 14 community centers in Beijing, China, via print and social media advertisements from April to October 2018. The present study lasted 48 weeks, with an intervention duration of 0–24 weeks and follow-up time of 24–48 weeks. The intervention was a two-stage and 24-week TTM-based exercise program, and the control group underwent a same-length exercise program guidance without any exercise-adherence interventions. The primary outcome was exercise adherence to the prescribed home exercise program and was measured using an 11-point numerical (0=not at all through and 10=completely as instructed) self-rating scale at week 4, 12, 24, 36, and 48 after the program started. KOA symptoms (pain intensity and joint stiffness) were measured using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and knee function (lower limb muscle strength and balance) was measured using the Five-Times-Sit-to-Stand Test (FTSST) and the Timed Up and Go Test (TUG) at baseline, week 24 and week 48. Latent growth model (GLM), repeated measures ANOVA, and independent t-test were the main statistical tests used.Results: A total of 189 older adults (intervention group: n = 103, control group: n = 86) were enrolled. Differences of any outcome measures at baseline were not significant between groups. The growth rate of exercise adherence in the intervention group increased 2.175 units compared with the control group (unstandardized coefficient of slope on group B2 = 2.175, p < 0.001), and the intervention program maintained participants’ exercise adherence with 5.56 (SD = 1.00) compared with 3.16 (SD = 1.31) in the control group at week 48. In addition, TTM-HEI program showed significant effects on relieving KOA symptoms and improving knee function.Conclusion: Over time, TTM-HEI could improve participants’ exercise adherence, KOA symptoms, and knee function.Trial registration: This study was approved by the ethics committee (IRB00001052-17066) in July 2017 and was registered at Chinese Clinical Trails Registry (website: www.chictr.org.cn, registry number: ChiCTR1800015458).

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