Goal Setting to Promote Physical Activity Adherence in Midlife Adults

Participants will wear wrist-worn ActiGraph GT9X Link Activity monitors the activity monitor on their non-dominant wrist during all waking hours for 7 consecutive days to provide an assessment of usual activity.

Participants will wear a wrist-worn Fitbit activity monitor daily throughout the 9-month intervention.

Self-reported minutes per week of moderate-to-vigorous physical activity assessed by the 7-day Physical Activity Recall.

Assessed using the The 12-item Physical Activity Self-Regulation Scale (PASR-12; Umstattd et al., 2009). This scale assess 6 PA-related self-regulatory domains: self-monitoring, goal setting, eliciting social support, reinforcements, time management, relapse prevention. The range of possible scores is 5-60, with higher scores indicating higher levels of physical activity self-regulation.

Assessed using 10-item Self-Regulation scale from the Health Belief Survey (Anderson et al., 2010) This scale assesses the use of behavioral strategies to incorporate physical activity into daily activities (i.e., take stairs instead of elevator, walking instead of driving when running errands). The range of possible scores for this measure is 1-5, with higher scores indicating higher levels of physical activity self-regulation.

Assessed by the 12-item Exercise Self-Efficacy survey (Sallis et al.1987). The range of possible scores for this measure is 1-5, with higher scores indicating higher levels of physical activity self-efficacy.

Assessed using the 31-item short version of the self-regulation scale (SSRS; Carey, Neal, & Collins, 2004). The range of possible scores is 31 to 155, with higher scores indicate greater self-regulation

Assessed using the 10-item Self-Efficacy Scale publicly available in SOBC repository & NIH Toolbox. The range of possible scores is 31 to 155. Higher scores indicate greater self-efficacy.

Assessed using the Auditory Verbal Learning Test. This test is administered on an iPad and is scored automatically using software available from the NIH Toolbox, which provides an age-adjusted standard score (possible range: 50 to 150) and percentile score (possible range: 1st percentile to 99th percentile). Higher scores indicate greater immediate verbal memory capacity.

Assessed using the Delayed Auditory Verbal Learning Test. This test is administered on an iPad and is scored automatically using software available from the NIH Toolbox, which provides an age-adjusted standard score (possible range: 50 to 150) and percentile score (possible range: 1st percentile to 99th percentile). Higher scores indicate greater immediate verbal memory capacity.

Assessed using the Picture Sequence Memory Test. This test is administered on an iPad and is scored automatically using software available from the NIH Toolbox, which provides an age-adjusted standard score (possible range: 50 to 150) and percentile score (possible range: 1st percentile to 99th percentile). Higher scores indicate greater immediate verbal memory capacity.

Assessed using the Dimensional Change Card Sort Test. This test is administered on an iPad and is scored automatically using software available from the NIH Toolbox, which provides an age-adjusted standard score (possible range: 50 to 150) and percentile score (possible range: 1st percentile to 99th percentile). Higher scores indicate greater immediate verbal memory capacity.

Assessed using the Pattern Comparison Processing Speed Test. This test asks participants to determine whether two stimuli are the same or not the same as quickly as possible without making mistakes. It is administered on an iPad and is scored automatically using software available from the NIH Toolbox, which provides an age-adjusted standard score (possible range: 50 to 150) and percentile score (possible range: 1st percentile to 99th percentile). Higher scores indicate greater immediate verbal memory capacity.

Assessed using the Oral Symbol Digit Test. This test assesses time needed to process pairings of digits & symbols and is administered on an iPad and is scored automatically using software available from the NIH Toolbox, which provides an age-adjusted standard score (possible range: 50 to 150) and percentile score (possible range: 1st percentile to 99th percentile). Higher scores indicate greater immediate verbal memory capacity.

Assessed using commercial Meso Scale Discovery (MSD) assays

Assessed using commercial Meso Scale Discovery (MSD) assays

Investigator-consensus adjudication will be performed by three investigators to determine if a participant has diagnosable MCI according to the NIA-AA guidelines (Albert et al., 20211).

Measured in kilograms using an electronic scale

Calculated using the formula: weight (in kilograms) / height (in meters)^squared

Both systolic and diastolic blood pressure will be assessed using electronic sphygmomanometer following 5-min rest

Assessed using an automated chemistry analyzer

Triglycerides, total cholesterol, LDL-C, and HDL-C will be assessed

Calculated using homeostatic model assessment (HOMA)

Assessed using the 20-item Center for Epidemiologic Studies Depression Scale (CES-D; Radloff, 1977). This scale has a possible score range 0 to 60, with higher scores indicating greater frequency of depressive symptoms.

Number of days Fitbit worn, number of days Fitbit synced, number of weeks study arm specific PA goal met, and number of individual coaching meetings attended.

Survey assessing acceptance, feasibility, and consumer satisfaction of intervention.