Supplemental Mobility

Usual Care SNFs will continue with routine collection and documentation of physical performance outcomes (gait speed, SPPB, Modified Barthel ADL Index) as standard practice. Importantly, the Usual Care SNF including the facility, rehabilitation clinicians, and patients will not have access to i-STRONGER materials.

An 8RM is the dose necessary for most effective strength gains in community-dwelling older adults, and is equivalent to 80% of a one repetition max, which is the maximal load needed to voluntarily complete one repetition of a given exercise with proper form. Activities will include strength training, transfer practice, balance training, advanced ADLs. Clinicians will tailor the intervention for each activity to target overload using 8-repetition maximum for resistance training. Other interventions will be performed to muscle failure or inability to complete the final repetition. Failure is the inability to complete a repetition through the full, available range of motion without significant compensation. Further, high-intensity dosing requires continuous, volitional effort from the patient; therefore, incorporation of motivational interviewing strategies across sessions will maximize patient effort and self-efficacy.

Usual Care SNFs will continue with routine collection and documentation of physical performance outcomes (gait speed, SPPB, Modified Barthel ADL Index) as standard practice. Importantly, the Usual Care SNF including the facility, rehabilitation clinicians, and patients will not have access to i-STRONGER materials.

The Safe Transfers and Mobility Program (STAMP) embeds a mobility aide into daily care. STAMP is a patient-centered, scalable approach to extend the benefits of rehabilitation sessions by increasing mobility throughout the day and reinforcing activity between therapy sessions. Core components are: (1) targeting 45 minutes of additional daily physical activity through support with walking and functional mobility tasks; (2) establishing individualized mobility goals collaboratively set by the therapist and patient, based on functional level; (3) delivering progressive activities with walking distances increased by ~30% weekly, adjusted for patient tolerance; and (4) interdisciplinary coordination to incorporate STAMP sessions into routine care with minimal disruption to clinical workflow. Prior work suggests that 45 minutes of STAMP can at least double daily step counts, and increasing walking distance by 30% per week is feasible even for individuals with low baseline function.

An 8RM is the dose necessary for most effective strength gains in community-dwelling older adults, and is equivalent to 80% of a one repetition max, which is the maximal load needed to voluntarily complete one repetition of a given exercise with proper form. Activities will include strength training, transfer practice, balance training, advanced ADLs. Clinicians will tailor the intervention for each activity to target overload using 8-repetition maximum for resistance training. Other interventions will be performed to muscle failure or inability to complete the final repetition. Failure is the inability to complete a repetition through the full, available range of motion without significant compensation. Further, high-intensity dosing requires continuous, volitional effort from the patient; therefore, incorporation of motivational interviewing strategies across sessions will maximize patient effort and self-efficacy.

The Safe Transfers and Mobility Program (STAMP) embeds a mobility aide into daily care. STAMP is a patient-centered, scalable approach to extend the benefits of rehabilitation sessions by increasing mobility throughout the day and reinforcing activity between therapy sessions. Core components are: (1) targeting 45 minutes of additional daily physical activity through support with walking and functional mobility tasks; (2) establishing individualized mobility goals collaboratively set by the therapist and patient, based on functional level; (3) delivering progressive activities with walking distances increased by ~30% weekly, adjusted for patient tolerance; and (4) interdisciplinary coordination to incorporate STAMP sessions into routine care with minimal disruption to clinical workflow. Prior work suggests that 45 minutes of STAMP can at least double daily step counts, and increasing walking distance by 30% per week is feasible even for individuals with low baseline function.

Gait speed will be measured in meters/second using the time it takes to walk a 4-meter path at usual speed using a stopwatch. Completion rates will be collected. Within site pre- to post- STAMP changes will be assessed. Higher gait speed indicates better outcome.

Feasibility of Intervention (FIM) will be collected from SNF Providers to assess feasibility. The FIM is a 4-item survey rated on a 5-point Likert scale (1=completely disagree to 5=completely agree), with higher average scores indicating greater feasibility.

Of all enrolled patients, percent completing ≥ 80% of sessions attempted by mobility aide

The Modified 30 second sit to stand test (m30STS) counts the number of stands from a chair completed in 30 seconds, which allows for upper extremity use on the armrests of a chair. The score is the total number of stands completed in 30 seconds; more than halfway up at the end of 30 seconds counts as a stand. Completion rates will be collected. Within site pre- to post- STAMP changes will be assessed. Higher scores indicate better outcomes.

Number of re-hospitalizations during SNF stay.

Percent of mobility aides achieving an average of ≥80% fidelity across study assessments. A formally trained site champion or research team member will measure STAMP fidelity on at least 2 patients per mobility aide each quarter.

Theoretical Framework of Acceptability (TFA) will be collected from SNF Providers to assess acceptability of the STAMP intervention. The TFA is a survey, which includes 8 items rated 1-5 on a Likert scale and summed (higher scores indicate greater acceptability).

Patient acceptability of the STAMP intervention will be assessed by mobility aides using the PRPS. The PRPS is a validated, single question, 6-point Likert-scale, rated by the mobility aide, that measures effort and participation. Higher score indicates more acceptability.

Change in daily step count from admission to discharge.

Of all enrolled patients, proportion achieving ≥20% increase in daily step count from admission to discharge.

The SPPB is comprised of 3 tasks: a hierarchical standing balance test (side-by-side, semi-tandem, and tandem), a 4-meter usual gait speed, and a 5-time sit-to-stand from a standardized chair. Each subtask is scored (based on time) from 0-4 points and then summarized into a total score of 0-12 points, where 12 points represents the highest performance. Completion rates and within site pre- to post-STAMP differences will be assessed.

The MBI assesses the ability to perform basic Activities of Daily Living (ADL) tasks. Total score range is 0-100. Total score is commuted by summing dependence across 10 ADL tasks: chair/bed transfers, ambulation, stair climbing, toilet transfers, bowel control, bladder control, bathing, dressing, personal hygiene (grooming), and feeding. Higher scores indicate increased independence. Completion rates and within site pre- to post-STAMP differences will be assessed.