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Abstract Number: 1948

Beliefs and Preferences for Reducing Sedentary Time in Those with Current or Past Knee Symptoms

Christine Pellegrini1,2, Sara Powell2, Chelsea Larsen2 and Siobhan Phillips3, 1Northwestern University Feinberg School of Medicine, Chicago, IL, 2Exercise Science, University of South Carolina, Columbia, SC, 3Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL

Meeting: 2018 ACR/ARHP Annual Meeting

Keywords: Arthroplasty, Behavioral strategies and osteoarthritis, Knee

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Session Information

Date: Monday, October 22, 2018

Title: 4M117 ARHP Abstract: Pain, Anxiety, & Depression–ARHP I (1946–1951)

Session Type: ARHP Concurrent Abstract Session

Session Time: 4:30PM-6:00PM

Background/Purpose: Physical activity is beneficial for those with current or previous knee symptoms, yet few meet federal physical activity guidelines. Reducing sedentary time, which has harmful effects independent of physical activity, may be a more feasible approach to improve the health of this population. The purpose of this study was to identify beliefs about sedentary behavior, barriers to standing, and program preferences in adults with knee pain, knee osteoarthritis (KOA), or total knee replacement (TKR).

Methods: Adults ≥50 years with knee pain, KOA, or TKR were recruited via flyers, emails, social media, and healthcare professionals. Participants completed an online survey assessing demographics, pain and function (Patient-Reported Outcomes Measurement Information System [PROMIS]), time spent in moderate-to-strenuous physical activity (MVPA; Godin Leisure Time Exercise Questionnaire) and sitting (Sitting Time Questionnaire), beliefs about sedentary behavior, and preferences for a sedentary behavior reduction program.

Results: A total of 35 participants completed the survey (Table 1). TKR patients were older and experienced less pain than those with knee pain or KOA (P<0.05). Participants self-reported being sedentary 10.1±3.8 hours/day and engaging in 113.7±129.8 minutes/week of MVPA, with no differences between knee groups. The majority of participants own a computer (97.1%) and smartphone (82.9%). Most participants (82.9%) believe that reducing sitting time can improve health, with the majority believing brisk or light walking (91.4%) would be better than standing (65.7%) (Table 2).  Over half (54.3%) of participants wish they could sit less. The most common barriers to standing were feeling pain/discomfort (48.6%) and inability to stand while using computer (48.6%) or watching TV (22.9%). Sixty-eight percent of participants were interested in participating in a sedentary reduction program and believed tracking sitting time (71%) and setting goals (67.7%) would be most helpful to reduce sitting time (Table 3).

Conclusion: Adults with knee pain, KOA, and TKR believe reducing sitting time could improve health. These results will help to inform the development of future sedentary reduction interventions tailored to the needs of those with current or past knee symptoms.

 

Table 1: Participant Characteristics

 

Overall

n=35 

Knee Pain or KOA

n=25

Knee Replacement

n=10

Age, years, mean ± SD 

61.6 ± 7.6 

58.9 ± 5.6

68.5 ± 7.7

BMI, kg/m2, mean ± SD 

32.1 ± 7.5 

31.2 ± 7.5

34.4 ± 7.4

Female, no. (%) 

24 (69%) 

14 (56%)

10 (100%)

Race, no. (%) 

   White 

33 (94%) 

23 (92%)

10 (100%)

Education

   < College Degree

   ≥ College Degree

10 (29%)

25 (71%)

7 (28%)

18 (72%)

3 (30%)

7 (70%)

Employment Status

   Working Part or Full time

   Not working

 

20 (57%)

15 (43%)

 

18 (72%)

7 (28%)

 

3 (30%)

7 (70%)

 

Health Conditions

   Hypertension

   Diabetes

   Depression

 

15 (43%)

4 (11%)

6 (17%)

 

10 (40%)

4 (16%)

2 (8%)

 

5 (50%)

–

4 (40%)

 

PROMIS Measures

  Mobility

  Pain Interference

  Pain Intensity

 

43.3 ± 4.7

44.2 ± 6.1

54.2 ± 6.1

 

43.3 ± 5.0

45.2 ± 6.3

55.8 ± 4.7

 

43.4 ± 4.1

41.6 ± 4.6

50.3 ± 7.4

 

Sedentary Behavior

  Average hours/day

 

10.1 ± 3.8

 

10.2 ± 3.8

 

9.7 ± 4.0

 

Physical Activity

  Average MVPA weekly

113.7 ± 129.8

120.3 ± 142.9

97.0 ± 93.9

BMI: Boddy mass index

KOA: Osteoarthritis

MVPA: Moderate to vigorous intensity physical activity

PROMIS: Patient-Reported Outcomes Measurement Information System


Disclosure: C. Pellegrini, None; S. Powell, None; C. Larsen, None; S. Phillips, None.

To cite this abstract in AMA style:

Pellegrini C, Powell S, Larsen C, Phillips S. Beliefs and Preferences for Reducing Sedentary Time in Those with Current or Past Knee Symptoms [abstract]. Arthritis Rheumatol. 2018; 70 (suppl 9). https://acrabstracts.org/abstract/beliefs-and-preferences-for-reducing-sedentary-time-in-those-with-current-or-past-knee-symptoms/. Accessed .
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