Grateful Strides Toward Physical Activity and Well-Being for Black Breast Cancer Survivors

Percentage of women who meet the inclusion criteria relative to the number of women approached.

Percentage of participants completing baseline assessment measures.

Percentage of participants who completed baseline assessments and completed the post-intervention assessments.

We assessed treatment satisfaction using the mean Client Satisfaction Questionnaire(CSQ-8) scores. An overall score is calculated by summing the respondent's rating score for each scale item. Scores range from 8 to 32, with higher values indicating higher satisfaction.

The mean change of dispositional gratitude measured at week 0/baseline and post-intervention/week 8 was measured using the Gratitude Questionnaire-6 designed to measure four facets of dispositional gratitude: (a) intensity, (b) frequency, (c) span, and (d) density. The scale consists of six items, each rated on a 7-point Likert scale ranging from 1 (strongly disagree) to 7 (strongly agree). To calculate the GQ-6 score, each item's score is summed to yield a total score. The minimum possible score is 6, indicating the lowest level of gratitude, and the maximum possible score is 42, indicating the highest level of gratitude. For example, if a participant's responses to the six items are 5 (slightly agree), 6 (agree), 4 (neutral), 7 (strongly agree), 3 (slightly disagree), and 5 (slightly agree), the total score would be 30. This total score is then used to gauge the participant's level of gratitude, with higher scores reflecting greater gratitude.

The Functional Assessment of Chronic Illness Therapy - Spiritual Well-Being is a self-report measure designed to assess spiritual well-being in individuals with chronic illness. It was used to report mean change from week 0/baseline and post-intervention/week 8. The scale comprises 12 items divided into two subscales: Meaning/Peace and Faith. Each item is rated on a 5-point Likert scale ranging from 0 (not at all) to 4 (very much). To calculate the FACIT-Sp-12 score, each item's score is summed. The Meaning/Peace subscale score is obtained by summing the scores of items 1 to 8, with a range of 0 to 32. The Faith subscale score is derived from items 9 to 12, with a range of 0 to 16. The total spiritual well-being score, which combines both subscales, ranges from 0 to 48. Higher scores on the FACIT-Sp-12 indicate greater spiritual well-being.

The mean change of distress baseline/week 0 and post-intervention/week 8 was measured using the Perceived Stress Scale designed to measure stress during the last month. The scale consists of 10 items, each rated on a 5-point Likert scale ranging from 0 (never) to 4 (very often). To calculate the PSS score, each item's score is summed, with items 4, 5, 7, and 8 being reverse-scored to account for their positive phrasing. The reversed scoring for these items means that a response of 0 becomes 4, 1 becomes 3, 2 remains 2, 3 becomes 1, and 4 becomes 0. The total score, ranging from 0 to 40, reflects the individual's perceived stress level, with higher scores indicating greater stress.

The Giscombe Superwoman Schema Questionnaire (GSSQ) measured the mean change in Superwoman Schema between baseline and post-intervention at weeks 0 and 8. The GSSQ consists of 35 items across five dimensions: obligation to manifest strength (6 items), obligation to suppress emotions (7 items), resistance to being vulnerable (7 items), intense motivation to succeed (6 items), and obligation to help others (9 items). Items are rated on a Likert scale from 0 (not true) to 3 (true all the time). The total score ranges from 0 to 105, with subscale ranges as follows: Strength (0-18), Suppress (0-21), Resistance (0-21), Motivation (0-18), and Help (0-27). Higher scores indicate stronger endorsement of the Superwoman Schema. Total and subscale scores are summed, with higher scores representing stronger schema identification.

The Exercise Readiness Scale measured the stages of exercise behavior change at baseline and post-intervention. The scale consists of five items assessing exercise behavior and intentions. Participants choose one statement that best describes their current level of physical activity, with options ranging from 1 (no participation in physical activity and no intention to start) to 5 (exercising regularly for more than 6 months). Scores range from 1 to 5, with higher scores indicating greater readiness for regular physical activity and higher stages of exercise behavior change.

The mean change of inflammatory biomarkers baseline/week 0 and post-intervention/week 8 was measured using a Luminex panel containing Tumor Necrosis Factor Alpha (TNF-α), Interleukin 6 (IL-6), Growth/Differentiation Factor-15 (GDF15).

The mean change of inflammatory biomarkers baseline/week 0 and post-intervention/week 8 was measured using a Enzyme-linked immunosorbent assay (ELISA) kit containing C-Reactive Protein.