Minimum Performance on Clinical Tests of Physical Function to Predict Walking 6,000 Steps/Day in Knee Osteoarthritis: An Observational Study

Master, Hiral; Thoma, Louise M.; Christiansen, Meredith B.; Polakowski, Emily; Schmitt, Laura A.; White, Daniel K.

doi:10.1002/acr.23448

Cited by 28 publications

(23 citation statements)

References 50 publications

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“…Master et al . 24 ) reported 10.5±2.9 s as the FTSST time for 1925 patients with knee OA (1065 women, mean age 65.1±9.1 years), and Bohannon et al . 25 ) showed that FTSST times in community-dwelling elderly people were 8.1±3.1 s in individuals aged 60–69 years, 10.0±3.1 s in individuals aged 70–79 years, and 10.6±3.4 s in individuals aged 80–89 years, and these times are used as reference values.…”

Section: Discussionmentioning

confidence: 96%

“…This study determined that changes exceeding 1.71 s in the FTSST time are changes in clinically meaningful that exceed the measurement error. Master et al 24) reported 10.5±2.9 s as the FTSST time for 1925 patients with knee OA (1065 women, mean age 65.1±9.1 years), and Bohannon et al 25) showed that FTSST times in community-dwelling elderly people were 8.1±3.1 s in individuals aged 60-69 years, 10.0±3.1 s in individuals aged 70-79 years, and 10.6±3.4 s in individuals aged 80-89 years, and these times are used as reference values. It is important to interpret these values by comparing them with the reference values in previous studies to accurately grasp the decline in the standing ability of patients with knee OA.…”

Section: Discussionmentioning

confidence: 99%

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Minimal Detectable Change for Motor Function Tests in Patients with Knee Osteoarthritis

Amano

Suzuki

2018

PRM

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Objective: Improvement in a subject’s motor function is clinically evaluated by comparing measurements of the motor function tests taken before and after an intervention. Consequently, it is important to increase the accuracy of the determination of the intervention effect by confirming the minimal detectable change (MDC), which is an index representing the limits of measurement errors in motor function tests. This study aimed to examine the MDC of the five-time sit-to-stand test (FTSST) and the 5-m walk test (5mWT) in patients with knee osteoarthritis (OA). Methods: In this cross-sectional study, 83 patients (63 women and 20 men, mean age: 73.7±8.0 years) with knee OA were subjected to two trials of the FTSST and 5mWT. The maximum walking speed was calculated using the walking time in the 5mWT, and the intraclass correlation coefficients (ICCs) were determined. Results: The ICCs (1,1) of the FTSST, the walking time in the 5mWT, and the walking speed were 0.90, 0.83, and 0.81, respectively. The MDC 95 for the FTSST time, walking time in the 5mWT, and walking speed were 1.71 s, 0.99 s, and 0.36 m/s, respectively. Conclusion: If the observed changes in the motor function tests exceed 1.71 s for FTSST time, 0.99 s for walking time in the 5mWT, or 0.36 m/s for walking speed, then an improvement in function is indicated. Such an improvement would reflect the effectiveness of the intervention. These findings may aid in clinical decision making when using motor function tests in patients with knee OA.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Minimal Detectable Change for Motor Function Tests in Patients with Knee Osteoarthritis

Amano

Suzuki

2018

PRM

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“…In a larger study of the OA-PCP intervention, we plan to provide participants with activity trackers to facilitate self-monitoring. The goal-setting component of the OA-PCP intervention will also be modified so that participants are guided to choose goals specific to either step counts or minutes of MVPA, with long-term goals based on recent evidence for reducing risk of functional decline in OA [49,50].…”

Section: Discussionmentioning

confidence: 99%

Osteoarthritis physical activity care pathway (OA-PCP): results of a feasibility trial

Allen

Callahan

et al. 2020

BMC Musculoskelet Disord

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Background: To obtain information on feasibility and acceptability, as well as preliminary data on efficacy, of an Osteoarthritis Physical activity Care Pathway (OA-PCP). Methods: This was a single group pilot study involving 60 participants with symptomatic, physician diagnosed knee or hip OA, recruited from primary care clinics. Participants self-reported completing less than 150 min per week of moderate-to-vigorous physical activity (MVPA) at baseline. The 3-month OA-PCP intervention involved 3 physical activity (PA) coaching calls (focused on goal setting), three check-in emails and linkage with communitybased or online resources to support PA. Efficacy outcomes were collected at baseline and 4-month follow-up. The primary efficacy outcome was minutes of MVPA, assessed via accelerometer. Secondary outcomes included minutes of light intensity activity, sedentary minutes, step counts, and Western Ontario and McMaster Universities (WOMAC) pain and function subscales. Participants were also asked to rate the helpfulness of the OA-PCP intervention on a scale of 0-10. Differences in efficacy outcomes between baseline and 4-month follow-up were assessed using paired t-tests. Results: Among participants beginning the study, 88% completed follow-up assessments and ≥ 90% completed each of the intervention calls. Average daily minutes of MVPA was 8.0 at baseline (standard deviation (SD) = 9.9) and 8.9 at follow-up (SD = 12.1, p = 0.515). There were no statistically significant changes in light intensity activity, sedentary time or step counts. The mean WOMAC pain score improved from 8.1 (SD = 3.6) at baseline to 6.2 (SD = 3.8) at follow-up (p < 0.001); the mean WOMAC function score improved from 26.2 (SD = 13.2) to 20.2 (SD = 12.5; p < 0.001). The mean rating of helpfulness was 7.6 (SD = 2.5). Conclusions: Results supported the feasibility and acceptability of the study, and participants reported clinically relevant improvements in pain and function. PA metrics did not improve substantially. Based on these results and participant feedback, modifications including enhanced self-monitoring are being made to increase the impact of the OA-PCP intervention on PA behavior.

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“…However, a threshold created from a heterogeneous group will likely represent varying degrees of physical function limitations depending on a patient's characteristics. Figure 2 illustrates how a common walking speed threshold of 1.22 m/s reflects different relative levels of objective physical function (determined by our reference value tables) that considers each combination of sex with age, radiographic KOA severity, and BMI [30,45]. For example, a female with a walking speed of 1.22 m/s represents the 34th percentile when compared to all females within our cohort, indicating they walk faster than 34% of the females in the cohort.…”

Section: Discussionmentioning

confidence: 99%

“…Individuals unable to complete the single or repeated chair stand test due to functional limitations were assigned a 0 chair stands/min speed [28]. 400-m walk time-Among those who could complete the 20-m walk test, participants performed one timed 400-m walk trial, while being instructed to "pace themselves without overexertion" as a measure of walking endurance [30]. The participants walked 20-m to a cone, walked around the cone, then back 20-m to a starting cone.…”

Section: Objective Physical Function Testsmentioning

confidence: 99%

Patient-specific reference values for objective physical function tests: data from the Osteoarthritis Initiative

et al. 2020

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Introduction/objective-We aimed to establish sex-specific reference values of objective physical function tests among individuals with or at risk for knee osteoarthritis (KOA) across subsets of age, radiographic KOA severity, and body mass index (BMI). Method-We included Osteoarthritis Initiative participants with data for objective physical function tests, sex, age, BMI, and radiographic KOA severity (Kellgren-Lawrence [KL] grade) at baseline. Objective physical function was quantified with 20-m walk speed, chair-stand speed, 400-m walk time, and knee extension and flexion strength. We created participant characteristic subsets for sex, age, KL grade, and BMI. Reference values were created as percentiles from minimum to maximum in 10% increments for each combination of participant characteristic

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Minimum Performance on Clinical Tests of Physical Function to Predict Walking 6,000 Steps/Day in Knee Osteoarthritis: An Observational Study

Abstract: Not meeting these minimum performance thresholds on clinical tests of physical function may indicate inadequate physical ability to walk ≥6,000 steps/day for people with knee OA. Rehabilitation may be indicated to address underlying impairments limiting physical function.

Cited by 28 publications

References 50 publications

Minimal Detectable Change for Motor Function Tests in Patients with Knee Osteoarthritis

Minimal Detectable Change for Motor Function Tests in Patients with Knee Osteoarthritis

Osteoarthritis physical activity care pathway (OA-PCP): results of a feasibility trial

Patient-specific reference values for objective physical function tests: data from the Osteoarthritis Initiative

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