L-Cat. Single question that asks about frequency/rigor of physical activity, with six potential answers ranging from no physical activity to daily physical activity.

Intrinsic Motivation Inventory. Questions relate to how participants think or feel about physical activity, with answers ranging from 1 (strongly disagree) to 7 (strongly agree). Broader scores are broken up into subscales; final subscale scores are summed and averaged. Higher scores indicate higher agreement with that subscale.

Self-Efficacy. 9 questions about confidence in exercise on scale of 1 (disagree strongly) to 7 (agree strongly). Higher scores indicate higher perceived confidence in doing that activity. Total scores are summed.

Exercise Intention Survey. Scored on a Likert scale from 1 (strongly disagree) to 7 (strongly agree) to indicate level of agreement to statements related to intention to exercise. Scores are summed to produce a total score. Higher scores indicate stronger intention to exercise, lower scores indicate weaker intention.

Exercise Identity Score. Scored on a Likert scale from 1 (strongly disagree) to 7 (strongly agree) to indicate level of agreement to statements related to attitudes towards exercise. Scores are summed and averaged to provide an overall score. Higher scores indicate a positive attitude towards exercise, lower scores less favorable attitude.

Heart Rate Variability is measured using chest strap monitor.

HR is measured using chest strap monitor.

Short Physical Performance Battery. Physical performance measured with repeated chair stands, three balance tests (side-by-side, semi-tandem, tandem), timed walking.

Talk Test. Graded treadmill test where intensity is increased at intervals to determine participant's ventilatory threshold.

A single-item measure from Borg (1973) was used to assess participants' rate of perceived exertion (RPE) during the exercise bout. Participants were asked to rate the average intensity of exercise [at that moment/during the past ten minutes] on a 25-point scale ranging from 6 (no exertion at all) to 20 (maximal exertion).

A single item measure from Borg (1998) was used to assess participants' pain levels during the exercise bout. Participants were asked to indicate how much pain they felt [at that moment/during the past ten minutes] on an 11-point scale ranging from 0 (nothing at all) to 10 (excruciating).

The Feeling Scale, a single-item measure from Hardy and Rejeski (1989), was used to assess participants' affective valence during the exercise bout. Participants were asked to indicate how they felt [at that moment/during the past ten minutes] on an 11-point scale ranging from -5 (very bad) to +5 (very good).

The Felt Arousal Scale, a single-item measure from Svebak and Murgatroyd (1985), was used to assess participants' affective arousal during the exercise bout. Participants were asked to indicate how "worked-up" they felt [at that moment/during the past ten minutes] on a 6-point scale ranging from 1 (low arousal) to 6 (high arousal).

A single item measure from Gillman and Bryan (2015) was used to assess participants' enjoyment levels during the exercise bout. Participants were asked to indicate how enjoyable exercise was [at that moment/during the past ten minutes] on a 5-point scale ranging from 1 (no enjoyment at all) to 5 (a great deal of enjoyment).

Three short questions assessing if the participant planned to engage in exercise and how many minutes of moderate (0-120) and vigorous (0-60) exercise they engaged in

An investigator led interview to pilot study participants' experience of the intervention and suggestions for improvement

A 10 item scale assessing perceived benefits of and barriers to exercise

Height, weight, waist circumference, and hip circumference will be measured

Assessment of the extent to which 7 common exercises are aligned with Black identity

Pfeiffer Mental Status. Assessment of cognitive deficits at baseline.

Nutrition Data System for Research (NDSR) 24-Hour Dietary Recall. Interviewer administered recall developed by the University of Minnesota Nutrition Coordinating Center (NCC).

NCI's Eating at America's Table Study (EATS) Fruit & Vegetable All-Day Screener174

NCI's Eating at America's Table Study (EATS) Fruit & Vegetable All-Day Screener174 NCI's Eating at America's Table Study (EATS) Fruit & Vegetable All-Day Screener. A short dietary assessment instrument for measuring fruit and vegetable intake over the past month.

Godin Survey. This survey measures time spent in moderate, strenuous or light activity and has been modified to include time spent sitting over a typical 7 day period. Scores are summed and a range is used to quantify how active/sedentary a participant is.