Optimizing Physical Activity Outcomes After Total Knee Arthroplasty
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ClinicalTrials.gov Identifier: NCT03226106 |
Recruitment Status :
Active, not recruiting
First Posted : July 21, 2017
Last Update Posted : August 4, 2022
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Condition or disease | Intervention/treatment | Phase |
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Total Knee Arthroplasty Osteoarthritis | Behavioral: Physical Activity Behavior Intervention Other: Attention Control | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 114 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Randomized controlled trial; Two groups. |
Masking: | Single (Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Optimizing Physical Activity Outcomes for Veterans After Total Knee Arthroplasty |
Actual Study Start Date : | November 15, 2017 |
Estimated Primary Completion Date : | May 31, 2023 |
Estimated Study Completion Date : | May 31, 2023 |

Arm | Intervention/treatment |
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Experimental: Physical Activity Behavior Intervention
A 12-week behavior change intervention that supplements conventional rehabilitation including: 10 telerehabilitation sessions, daily activity sensor use, education, self-monitoring, tailored feedback, barrier/facilitator identification, promotion of problem solving, action planning, and encouragement.
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Behavioral: Physical Activity Behavior Intervention
Home-based weekly sessions (30 min) using behavior change methods for promoting physical activity. Sessions will occur using home-based computer tablets for real-time video interface between the participant and researcher. Participants will wear wrist-mounted activity sensors with direct physical activity feedback during the intervention period to allow for behavioral feedback and action planning. |
Active Comparator: Attention Control
Conventional rehabilitation with 10 telerehabilitation sessions that match the frequency and duration of the experimental arm. Attention control intervention provided as 10 telerehabilitation sessions of non-physical activity related education-only sessions.
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Other: Attention Control
Conventional rehabilitation with supplemental 10 telerehabilitation sessions that match the frequency and duration of the experimental arm. Attention control intervention provided as 10 telerehabilitation sessions of non-physical activity related education-only sessions. |
- Free-living daily step count [ Time Frame: Change from pre-surgery to end of intervention (14 weeks) ]Accelerometer-based measurement of free-living daily step count
- 30-Second Chair-Stand Test [ Time Frame: Change from pre-surgery to end of intervention (14 weeks), persisting at 24 weeks after intervention ]Physical function test that assesses the number of sit-stand-sit transitions that a participant performs in the span of 30 seconds.
- Six-Minute Walk Test [ Time Frame: Change from pre-surgery to end of intervention (14 weeks), persisting at 24 weeks after intervention ]Physical function test measuring the total distance walked in a span of six minutes.
- Timed Up-and-Go Test [ Time Frame: Change from pre-surgery to end of intervention (14 weeks), persisting at 24 weeks after intervention ]A physical performance measure that includes rising from a chair, walking 3 meters, turning 180 degrees, returning to chair, and sitting.
- Western Ontario and McMaster Universities Osteoarthritis Index [ Time Frame: Change from pre-surgery to end of intervention (14 weeks), persisting at 24 weeks after intervention ]Self-report health status measure of pain, stiffness, and function for people with osteoarthritis of the hip or knee.
- Veterans RAND 12-Item Health Survey [ Time Frame: Change from pre-surgery to end of intervention (14 weeks), persisting at 24 weeks after intervention ]A self-report assessment of health-related quality of life assessing the domains of physical functioning, role-physical, bodily pain, general health perceptions, vitality, social functioning, role-emotional, and mental health.

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Ages Eligible for Study: | 50 Years to 85 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Veteran
- Planned unilateral total knee arthroplasty
Exclusion Criteria:
- Severe non-surgical limb pain (pain >5/10 on non-surgical limb with walking)
- Unstable orthopedic, neurologic, or pulmonary condition that limits function
- Unstable cardiac condition
- Uncontrolled hypertension
- Uncontrolled diabetes
- Acute systemic infection
- Active cancer treatment
- Recent stroke (within 2 years)

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03226106
United States, Colorado | |
Rocky Mountain Regional VA Medical Center, Aurora, CO | |
Aurora, Colorado, United States, 80045 |
Principal Investigator: | Cory L. Christiansen, PhD | Rocky Mountain Regional VA Medical Center, Aurora, CO |
Responsible Party: | VA Office of Research and Development |
ClinicalTrials.gov Identifier: | NCT03226106 |
Other Study ID Numbers: |
F2417-R |
First Posted: | July 21, 2017 Key Record Dates |
Last Update Posted: | August 4, 2022 |
Last Verified: | August 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Plan Description: | Participant data will be made available at time of study completion, per VA recommendations and approval. |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Rehabilitation Total Knee Arthroplasty Telemedicine Physical Activity |
Osteoarthritis Arthritis Joint Diseases Musculoskeletal Diseases Rheumatic Diseases |