Project Workout on Wheels Internet Intervention (WOWii): Summative Evaluation With Randomized Clinical Trial

This study will gather empirical evidence of the effectiveness of WOWii intervention in promoting changes in exercise behavior, fitness, and perceptions of exercise over the 16 week intervention as well as 2 months later for individuals living with SCI. The study staff will assess effectiveness by measuring participants (a) time spent each week doing aerobic exercise by self-report and objective monitoring, (b) aerobic capacity to assess fitness changes, and (c) self-reported perceptions of exercise barriers and self-efficacy at baseline, 4 months, and 6 months.

Participants will be randomly assigned to an experimental (WOWii) or a wait-list control group in one of four cohorts over a two-year period. This was an effective strategy in our previous trial in helping us achieve the full sample size. We will use a blocked randomization procedure to assure equal distribution of those with paraplegia and tetraplegia. Four cohorts will be enrolled over two years, with each having up to 36 people. This allows for up to 18 participants in the experimental and control groups, which permits us to offer two different time options for participants to attend the weekly meetings, as our video conferencing software allows up to 10 people to participate in the group video chat. Each cohort will be divided into two groups of 18 study participants as experimental and wait-list control groups. The experimental group will be divided into two groups of nine participants. Each cohort will begin the intervention at the same time and attend weekly calls together. All participants will undergo a pre-screen assessment which includes eligibility assessment. Participants will undergo 2 in-person fitness testing assessments at baseline at the end of the 16 week internet intervention with online meetings, before or during which they will complete an online survey and follow. A third follow up assessment will be conducted as an online survey at 6 months, which is 2 months after the intervention is complete, and an exit survey will be conducted individually over the phone after within one week of completing the final online survey. The wait-list control group will be offered the intervention at the end of the 6 month period. Due to low enrollment numbers, we will likely add a 5th cohort for enrollment.