The Implementation Guide is a resource for implementing this evidence-based program. It provides important information about the staffing and functions necessary for administering this program in the user's setting. Additionally, the steps needed to carry out the program, relevant program materials, and information for evaluating the program are included. The Implementation Guide can be viewed and downloaded in the Program Materials page.
Designed to improve dietary habits among overweight or obese breast cancer survivors, this nutrition- and physical activity-based weight loss intervention consists of 26 group sessions, counseling by telephone or email, and tailored print newsletters that teach skills such as goal setting, self-monitoring, and overcoming barriers. The study showed increased weight loss.
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In the United States, breast cancer is the most common cancer among women, with approximately 237,000 women being diagnosed with breast cancer annually. There are several risk factors for breast cancer, including being overweight or obese (in postmentopausal women) and having already had breast cancer. Additionally, being obese may negatively affect cancer survivorship, including quality of life, cancer recurrence, cancer progression, and survival. The U.S. Preventive Services Task Force recommends intensive multicomponent behavioral interventions for adults with a body mass index (BMI) of 30 kg/m2 or higher (indicating obesity) to help them reach a healthy BMI. Interventions that target weight loss among breast cancer survivors are needed to help improve prognosis and overall quality of life.
Exercise and Nutrition to Enhance Recovery and Good Health for You (ENERGY) is a 2-year nutrition- and physical activity-based weight loss intervention that targets female breast cancer survivors who are overweight or obese. ENERGY's conceptual framework posits that determinants of health are influenced by personal, social, and physical environmental antecedents and consequences of behavior affect one's motivation and self-efficacy for behavior change. Goal setting, self-monitoring, and learning to overcome barriers are central to this model. The overall goal of ENERGY is to help participants achieve a healthier weight (a sustained weight loss of 7% body weight over the intervention period) and lifestyle habits.
The ENERGY intervention consists of 1-hour group sessions, counseling by telephone or email, and tailored print newsletters. Group sessions teach skills intended to increase physical activity, improve eating attitudes and behaviors, and enhance personal body image (i.e., thoughts and feelings about body shape and weight). Session topics include social support, dealing with diet-related lapses, managing stress, maintaining heart health, understanding calories, and strength training. Each group of about 15 women meets each week for the first 4 months, every other week in months 5 and 6, and monthly for the remainder of the first year, for a total of 26 sessions. One or two group leaders, who have a professional background in dietetics, psychology, and/or exercise physiology, remain with their assigned group for all sessions. To encourage attendance, sessions are scheduled at times that are convenient for participants. The core content of the sessions is standardized, but group leaders can adapt material and discussions to meet the needs of a given group.
Counseling calls and emails provide feedback on individual progress and offer participants support. These contacts are brief (e.g., 10-15 minutes for calls) and give participants a chance to set and plan follow-through for specific goals. Participants receive 14-16 counseling calls or emails in the first year and a total of 24-38 calls or messages during the 2-year program.
Participants receive tailored print newsletters quarterly from 6-24 months, when groups meet less frequently. These newsletters provide additional support and reinforce self-management. They include participant-specific data on physical activity (minutes/day and pedometer counts), dietary intake, and weight; provide suggestions for overcoming common barriers to exercise and weight management; and reinforce goal setting.
Community Preventive Services Task Force Finding
-- 1 hour for each of 26 group sessions
-- 10-15 minutes for each of 24-38 telephone counseling calls
-- Approximately 30 minutes to prepare and send each tailored newsletter
ENERGY targets overweight and obese female breast cancer survivors who are aged 21 years and older.
ENERGY can be implemented in community settings.
Required resources to implement the program include the following:
-- ENERGY Curriculum
-- Sample ENERGY Newsletter
-- ENERGY Participant Notebook
-- Newsletter Survey
-- Food and Activity Record
Costs associated with program implementation are not available.
About the Study
A randomized controlled trial compared ENERGY with a less intensive weight loss intervention that included weight management resources and materials published by the National Institutes of Health, the American Heart Association, the U.S. Department of Health and Human Services, and the U.S. Department of Agriculture (e.g., ChooseMyPlate.gov). Comparison group participants received individualized counseling sessions at baseline and 6 months that included a recommendation to adopt a calorie intake appropriate for weight loss and participate in regular exercise (60 minutes/day). They also received monthly telephone calls/emails from the study coordinator over the course of the 2-year intervention and were invited to attend healthy living seminars every other month for the study's first year.
Participants were recruited from four sites in San Diego, California; Denver, Colorado; St Louis, Missouri; and Birmingham, Alabama. The study recruited women who were at least 21 years of age and had a history of breast cancer (Stage I at least 1 cm, Stage II, or Stage III) diagnosed within the previous 5 years. Other inclusion criteria included having completed initial therapies (not including endocrine therapy), having a BMI of 25 to 45 kg/m2 (in the range of overweight and obese), and being able to comply with study procedures. Exclusion criteria included having a history of malignancies other than initial breast cancer, except nonmelanoma skin cancer; serious psychiatric illness; and any medical condition substantially limiting moderate physical activity. Potential participants were recruited by sending letters to women in local or regional cancer registries (n=11,311), distributing flyers (2,740), and securing media coverage through television and radio. Of the potential participants, 4,291 were not eligible and an additional 17 were determined ineligible after baseline assessments. Randomization was performed by a centralized computer process that assigned participants in a 1:1 ratio to either the ENERGY (n=344) or comparison (n=348) group.
In the intervention group, the average age was 56 years old; 56.4% of intervention group participants were at least 55 years old, 30.5% were 45-54, and 13.1% were 30-44. Seventy-seven percent were non-Hispanic White, 10.5% were African American, 7.6% were Hispanic, and 4.9% were 'mixed/other'. The average weight at baseline was 85.0 kg, and 32.0% had Stage I breast cancer, 48.6% had Stage II breast cancer, and 19.5% had Stage III breast cancer. In the comparison group, the average age was 56; 57.5% of comparison group participants were at least 55 years old, 32.8% were 45-54, and 9.8% were 30-44. Eighty-one percent were non-Hispanic White, 10.1% were African American, 5.8% were Hispanic, and 3.2% were 'mixed/other'. The average weight at baseline was 84.7 kg; 31.9% had Stage I breast cancer, 51.7% had Stage II breast cancer, and 16.4% had Stage III breast cancer.
The main outcome was weight, with secondary outcomes being BMI, waist circumference, and physical activity. All were assessed at baseline and 6, 12, 18, and 24 months after baseline except waist circumference, which was measured at baseline and 12 and 24 months after baseline. Weight was measured at clinic visits using a calibrated scale. BMI was calculated using height and weight. All anthropometric measures were standardized and outlined in an operational manual. Physical activity was measured with the Godin Leisure Time Exercise Questionnaire, which uses three questions to determine the frequency and duration of mild, moderate, and strenuous exercise performed during free time in a typical week.
- The intervention group had significantly greater weight loss than the comparison group at 6 months (p=.002), 12 months (p=.003), and 18 months (p=.02).
- The intervention group had a lower BMI than the comparison group at 6 months (29.7 kg/m2 vs. 31.0 kg/m2, p=.001), 12 months (29.7 kg/m2 vs. 30.9 kg/m2, p=.003), and 18 months (30.0 kg/m2 vs. 30.8 kg/m2, p=.03).
- Waist circumference was lower for the intervention group than the comparison group at 12 months (97.8 cm vs. 100.4 cm, p=.004).
- The intervention group had greater physical activity per week than the comparison group at 6 months (238 minutes vs. 163 minutes, p<.001) and at 12 months (212 minutes vs. 139 minutes, p<.001).
Rock CL, Flatt SW, Byers TE, Colditz GA, Demark-Wahnefried W, Ganz PA, Wolin KY, Elias A, Krontiras H, Liu J, Naughton M, Pakiz B, Parker BA, Sedjo RL, Wyatt H. (2015). Results of the Exercise and Nutrition to Enhance Recovery and Good Health for You (ENERGY) Trial: A Behavioral Weight Loss Intervention in Overweight or Obese Breast Cancer Survivors. Journal of Clinical Oncology, 33 (28), 3169-3176.
Rock CL, Byers TE, Colditz GA, Demark-Wahnefried W, Ganz PA, Wolin KY, Elias A, Krontiras H, Liu J, Naughton M, Pakiz B, Parker BA, Sedjo RL, Wyatt H. (2013). Reducing breast cancer recurrence with weight loss, a vanguard trial: the Exercise and Nutrition to Enhance Recovery and Good Health for You (ENERGY) Trial. Contemporary Clinical Trials, 34 (2), 282-295.
Sedjo RL, Flatt SW, Byers T, Colditz GA, Demark-Wahnefried W, Ganz PA, Wolin KY, Elias A, Krontiras H, Liu J, Naughton M, Pakiz B, Parker BA, Wyatt H, Rock CL. (2016). Impact of a behavioral weight loss intervention on comorbidities in overweight and obese breast cancer survivors. Supportive Care in Cancer, 24 (8), 3285-3293.
Demark-Wahnefried W, Colditz GA, Rock CL, Sedjo RL, Liu J, Wolin KY, Krontiras H, Byers T, Pakiz B, Parker BA, Naughton M, Elias A, Ganz PA; ENERGY Trial Group. (2015). Quality of life outcomes from the Exercise and Nutrition Enhance Recovery and Good Health for You (ENERGY)-randomized weight loss trial among breast cancer survivors. Breast Cancer Research and Treatment, 154 (2), 329-337.
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