Making Healthy Habits Stick: Extended Contact Interventions to Promote Long Term Physical Activity in African American Cancer Survivors

养成健康习惯：延长接触干预措施以促进非裔美国癌症幸存者的长期身体活动

• 批准号: 10821052
• 负责人: MICHELLE Y MARTIN
• 金额: $ 67.41万
• 依托单位: UNIVERSITY OF TENNESSEE HEALTH SCI CTR
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-21 至 2028-03-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10821052
• 关键词: Accelerometer; Address; Adherence; Adopted; Adoption; Affect; African American; Attention; Attenuated; Behavior; Behavior Therapy; Behavioral; Breast Cancer survivor; Cancer Survivor; Cancer Survivorship; Clinical Trials; Complex; Data; Discrimination; Disparity; Effectiveness; Emotional; Ethnic Population; Evaluation; Exercise; Experimental Designs; Guidelines; Habits; Health; Health Benefit; Health behavior; Health behavior change; Individual; Intervention; Knowledge; Literature; Maintenance; Mediating; Mediator; Medical; Modeling; Monitor; Obesity; Outcome; Participant; Phase; Physical Function; Physical activity; Physical assessment; Play; Population; Process; Public Health; Quality of life; Randomized; Reduce health disparities; Regulation; Reporting; Research; Research Design; Role; Science; Second Primary Cancers; Self Efficacy; Source; Stress; Survivors; System; Testing; Text Messaging; Thinking; Time; United States; Vulnerable Populations; Woman; Work; Writing; active lifestyle; attenuation; behavior change; biological adaptation to stress; cancer health disparity; comorbidity; comparison intervention; disability; disparity elimination; exercise intervention; exercise program; experience; experimental study; health disparity; improved; insight; intervention delivery; intervention effect; moderate-to-vigorous physical activity; novel; obesity risk; outcome disparities; peer coaching; perceived discrimination; physical inactivity; poor health outcome; primary outcome; programs; racial population; response; service intervention; social cognitive theory; social health determinants; success; theories; therapy design; treatment as usual

Disparities in cancer survivorship are persistent and pervasive. Obesity, medical comorbidities, second primary cancers, poor quality of life and compromised physical functioning, disproportionately affect African American (AA) cancer survivors. There is strong evidence that physical activity (PA) has the potential to eliminate these disparities. Yet, insufficient PA is more prevalent among AA cancer survivors and 76% do not meet PA guidelines. Efforts to increase PA longer term in cancer survivors have been modestly successful. The extant literature and our own preliminary data in cancer survivors shows that PA adoption is often followed by an attenuation of PA over time. These findings have led to a recent shift in thinking, specifically that the social cognitive theory constructs (e.g., self-efficacy), important for PA adoption play less of a role in PA maintenance. Additional theoretical constructs (i.e., habit and identity) may be the key constructs necessary for long term behavior change. Conceivably, lack of success in promoting PA maintenance may also be due to few studies examining how well health behavior change interventions work in the broader societal context. For example, for AAs, discrimination is a potent social determinant of health. Discrimination is prevalent (reported by 82% of AA breast cancer survivors), disproportionate (AAs are more likely to report discrimination-related stress compared to other racial and ethnic groups), and stressful (stress, in general, impedes PA). Despite this evidence, the effect of discrimination on PA intervention outcomes is unknown. Thus, to advance PA maintenance science with a focus on a vulnerable population, we propose testing two potentially translatable PA maintenance promotion interventions (Short Message Service [SMS] and peer coach) in 260 physically inactive AA women cancer survivors using a rigorous, randomized 2 x 2 factorial experimental design. Survivors will complete a 3-month PA adoption phase (i.e., efficacious theory-based PA behavior change program) prior to randomization to a PA maintenance promotion intervention or usual care. Our 6-month SMS and peer coach PA maintenance promotion interventions will be guided by the Multi-Process Action Control (M-PAC) framework which includes constructs which are understudied in cancer survivors yet hypothesized to be important for PA maintenance (e.g., habit, identity). Assessments will occur at baseline (pre-PA adoption), 3 months (post-PA adoption; immediately prior to randomization), 9 months, and 15 months. Our specific aims are: 1) Determine effects of both PA maintenance interventions (SMS, peer coach) compared to usual care on PA maintenance (i.e., main effects and if either intervention effects differ in the presence of the other); 2) Identify theory-based mediators of PA maintenance; and 3) Determine if discrimination moderates intervention effects on PA maintenance. The project will generate new knowledge about the mechanisms underlying PA maintenance and provide insight about the impact of discrimination on intervention effects thus leading to more effective behavioral interventions that will improve health outcomes and reduce health disparities.

癌症存活率的差异是持久和普遍的。肥胖，医疗合并症，第二主要