Feasibility of Choose to Move Replacement Ready

Obtained from program records. Proportion of people who attend the program information session, are eligible, and enrol in the program.

Feasibility Target: Enrol 50% of people attending the program information session who are eligible to participate to the program.

Obtained from evaluation records. Proportion of participants who consent to the evaluation who complete each follow-up assessment.

Feasibility target: A minimum of 80% of participants who consented to the evaluation (and are in the pre-operative period) completing each follow-up assessment.

Obtained from post-program survey. Proportion of required intervention components (group meetings and one-on-one consultations) delivered by activity coaches.

Feasibility target: Activity coaches delivering 90% of required intervention components (group meetings and one-on-one consultations).

Obtained from post-program survey. Proportion of participants who consent to the evaluation, attending required intervention components (group meetings and one-on-one consultation)

Feasibility target: Participants who consent to the evaluation attending 6 out of 9 (>60%) of required intervention components (group meetings and one-on-one consultation)

Obtained from post-program survey. Measures adherence to prescribed frequency, intensity, duration, and type of exercises performed.

80% of participants adhered to all of the following criteria:

• on average, frequency= two sessions per week or greater
• on average, intensity= 7 out of 10 rating of perceived exertion or greater
• on average, duration= 20 minutes or greater
• on average, exercises were completed as prescribed without omission or substitution of prescribed exercises

Obtained from post-program survey. Number of adverse events related to Choose to Move: Replacement Ready that required medical treatment and/or lasted two or more days.

Single-item physical activity questionnaire. Output measure is self-reported number of days engaging in ≥30 minutes of moderate-to-vigorous physical activity in the past week (range 0-7). Higher scores reflect a better outcome (i.e. increased physical activity)

International Physical Activity Questionnaire (IPAQ-SF): assesses self-reported weekly minutes of walking (minutes per week)

International Physical Activity Questionnaire (IPAQ-SF): assesses self-reported weekly minutes of sedentary time

Single-item muscle strengthening activity survey. Number of days in past week doing activities that increase bone and muscle strength

Single-item activity survey. Number of days in past week doing activities that improve balance.

Short-Form-36 health survey (SF-36) Physical Functioning Scale: two items assess self-reported ability to walk ¼ mile and 1 flight of stairs.

Social Isolation Questionnaire: score (0-15) reflects the degree of social interaction and support. Higher scores indicate a greater level of social interaction and support.

The 3-item U.S. Health and Retirement Study Participant Lifestyle Questionnaire reflects experiences of loneliness. Each item is scored on a scale of 1-3. The output variable is the summed score of the 3 items (range 3-9); Higher scores indicate greater perceived loneliness.

The four-item PROMIS- Ability to Participate in Social Roles and Activities Scale- short form 4a will be used to assess perceived ability to perform one's usual social roles and activities. Each item is scored on a scale of 1-5. The output variable is the summed raw score of all 4-items (range 4-20) converted into a T-score (27.5-64.2) ; higher scores indicate greater ability to engage in social roles and activities.

The 12-item Hip Disability and Osteoarthritis Outcome Score (HOOS-12) assesses patients' hip condition (pain, function, quality of life). Each item is scored on a scale of 0-10. The output variable is the average score of the 12-items (range 0-100); higher scores indicate worse hip problems.

The 12-item Knee Disability and Osteoarthritis Outcome Score (KOOS-12) assesses patients' knee condition (pain, function, quality of life). Each item is scored on a scale of 0-10. The output variable is the average score of the 12-items (range 0-100); higher scores indicate worse knee problems.

Single-item measure using a numerical rating scale: score (0-10) assesses the overall condition of the affected hip or knee joint. Higher scores indicate worse condition (severe symptoms).

The 8-item questionnaire assesses how certain an individual is that they can manage various aspects of their arthritis. Each item is scored on a scale of 1-10. The output variable is the average score of all 8-items (range 8-80); higher scores indicate more self-efficacy.

Pain Numerical Rating Scale (NRS): score (0-10) assesses pain intensity on average during the past week. Higher scores indicate worse pain intensity.

One item will assess participants' willingness to undergo hip or knee replacement surgery. The question asks: "What is your current willingness to undergo a [total hip replacement surgery or total knee replacement surgery]?" The response options are: definitely unwilling, probably unwilling, unsure, probably willing or definitely willing. Definitely unwilling, probably unwilling, unsure= No, and probably willing or definitely willing=Yes. The output variable is self-reported willingness to undergo surgery (yes/no).

The Generalized Anxiety Disorder 7-item scale (GAD-7) will be used to assess the presence of anxiety. Each item is scored on a scale of 0-3. The output variable is the summed total of all scores (range 0-21); higher scores indicate greater levels of anxiety.

The 11-item Tampa Scale for Kinesiophobia (TSK-11) assesses fear of movement in individuals with chronic pain. Each item is scored on a scale of 1-4. The output variable is the total summed score of all 11-items (range 11-44); higher scores indicate greater fear of movement.

Acceptability of Intervention Measure (AIM). Activity coaches' perception that CTM-RR is agreeable or satisfactory will be assessed by survey (4 items each on a 1-5 Likert scale with 1 being completely disagree and 5 being completely agree).

Intervention Appropriateness Measure (IAM). Extent to which CTM-RR fits the needs of the target population will be assessed by survey (4 items each on a 1-5 Likert scale with 1 being completely disagree and 5 being completely agree)

Feasibility of Intervention Measure (FIM). Activity coaches' perception that CTM-RR is feasible to deliver will be assessed by survey (4 items each on a 1-5 Likert scale with 1 being completely disagree and 5 being completely agree).

Number of individuals participating in CTM-RR programs will be obtained from program records.

Obtained from program records. Number of referral partners who refer participants to the program.

Satisfaction with CTM-RR will be assessed via participant (older adults) survey (designed in house). Higher scores (1-5 Likert scale) indicate higher participant satisfaction with the intervention.

Perceived participant responsiveness will be assessed via participant (older adults) survey ( short answer responses; developed in house). Older adults will indicate which optional intervention components they engaged in (peer check-in, e-mail newsletter, hip and knee exercises; yes/no response options)

Planned or purposeful changes to the delivery of CTM-RR by activity coaches will be assessed by survey (short answer responses; developed in house). Coaches will indicate if they made any adaptations to the program (yes/no) and to provide details of any adaptations such as why it needed to occur.

Perceived participant responsiveness will be assessed via participant (activity coach) survey (developed in house). Activity coaches will indicate whether participants were interactive, enthusiastic, interested, and engaged during group meetings.

Planned or purposeful changes to the delivery of CTM-RR by activity coaches will be assessed by interview.

Activity coaches overall experience with program training and delivery, will be assessed by interview

Activity coaches perceptions of participant responsiveness will be assessed by interview.

Older adults' perceptions of potential adaptations to improve the program will be assessed by interview

Older adults' responsiveness during the program will be assessed by interview.

Older adults' perceptions that the program is acceptable or satisfactory will be assessed by interview.

Older adults' perceptions of the program's feasibility will be assessed by interview.

Older adults' perceptions of the program's appropriateness will be assessed by interview.

Referral partners' perception that the CTM-RR referral process can be used successfully within the organization will be assessed by interview.

Referral partners' perception that the CTM-RR referral process is acceptable or satisfactory will be assessed by interview.

Referral partners' perception regarding the extent to which the CTM-RR referral process fits with the mission, priorities, and values of the organization will be assessed by interview.

At the start of the program, older adult participants complete an Action Plan with support from their activity coach. They record a physical activity goal that is specific, measurable, attainable, relevant, and time-based (SMART). Action Plans will be collected and information from the Action Plans will be reported descriptively.

Older adult participants will record the type and duration of physical activities they engaged in over the past 7 days on a weekly basis during CTM-RR. Data will be reported descriptively.