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Bewegen samen met dieet sleutel tot overleven bij borstkanker.*
Uit een Amerikaanse studie blijkt dat dagelijks gezonde voeding samen met bewegen de kans op overlijden als gevolg van borstkanker fors doet verminderen. Aan de studie deden 1.490 vrouwen mee van gemiddeld 50 jaar waarbij borstkanker was vastgesteld en die daarvoor behandeld waren. 11 jaar lang werden deze vrouwen gevolgd. Vrouwen die iedere dag minstens 5 porties groenten en fruit namen en 6 dagen in de week 30 minuten flink deden bewegen bleken 50% minder kans te hebben om te overlijden aan borstkanker. 50% wil zeggen 7% kans om te overlijden i.p.v. bijna 14% bij de andere vrouwen met borstkanker . Slechts 16% van de vrouwen met overgewicht en 30% van de andere vrouwen in deze studie aten minstens die 5 porties groenten en fruit en deden ook de 30 minuten bewegen. Niet alleen dieet of alleen bewegen doch de combinatie is de goede oplossing.
Diet And Exercise Key To Surviving Breast Cancer, Regardless Of Obesity, New UCSD Study Says
Breast cancer survivors who eat a healthy diet and exercise moderately can reduce their risk of dying from breast cancer by half, regardless of their weight, suggests a new longitudinal study from the Moores Cancer Center at the University of California, San Diego (UCSD). 
Previous studies have looked at the impact of diet or physical activity on breast cancer survival, with mixed results. This study, published in the Journal of Clinical Oncology, is the first to look at a combination of both in breast cancer. 
"We demonstrate in this study of breast cancer survivors that even if a woman is overweight, if she eats at least five servings of vegetables and fruits a day and walks briskly for 30 minutes, six days a week, her risk of death from her disease goes down by 50 percent," said the paper's first author, John Pierce, Ph.D., director of the Cancer Prevention and Control Program at the Moores UCSD Cancer Center. "The key is that you must do both." 
The study looked at 1,490 women aged 70 years and younger (average 50 years) with early stage breast cancer who were randomly assigned to the non-intensive dietary arm of the ongoing Women's Health Eating and Living (WHEL) study. The WHEL study is a multi-center study, based at UCSD, investigating the effect of a plant-based diet on additional breast cancer events. 
The women in the study were diagnosed with early stage breast cancer between 1991 and 2000 and had completed their primary therapy prior to enrollment. Dietary pattern and physical activity were assessed at enrollment and the women were followed for between five and 11 years. 
The researchers found that only 16 percent of women who were obese were both physically active and had a healthy diet, compared to 30 percent in the rest of the study population. Those who were both physically active and had a healthy diet were much more likely to survive through the follow-up period than the rest of the study group. The mortality rate was 7 percent, approximately half of that seen for the rest of the study population. 
"Of particular importance is that this halving of risk was seen in women who were not obese as well as in those who were obese," said co-author Cheryl Rock, Ph.D., R.D., of the Center's Cancer Prevention and Control Program. "Also, the effect was not seen in women who practiced only one of the lifestyle patterns - high vegetable and fruit intake, or physical activity." 
Because of the strength of the findings from this longitudinal (observational) study, the researchers want to further investigate the combined protective effect of diet and physical activity on breast cancer survival in an interventional study in which they will change the diet and level of physical activity in breast cancer survivors. 
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Besides Pierce and Rock, who are both faculty members of the Department of Family and Preventive Medicine at the UCSD School of Medicine, co-authors are: Marcia L. Stefanick, Stanford Prevention Research Center, Stanford University, Palo Alto, CA; Shirley W. Flatt, Loki Natarajan, Lisa Madlensky, Wael K. Al-Delaimy, Sheila Kealey, Barbara A. Parker, and Vicky A. Newman, Moores Cancer Center, University of California, San Diego; Barbara Sternfeld, Division of Research, Kaiser Permanente Northern California, Oakland, California; Cynthia A. Thompson, Arizona Cancer Center, University of Arizona, Tucson; Richard Hajek, MD Anderson Cancer Center, The University of Texas, Houston; and Bette Caan, Kaiser Permanente Medical Group Inc., Oakland. 
This work was supported by the Walton Family Foundation, and grants from the National Cancer Institute. 
Founded in 1979, the Moores UCSD Cancer Center is one of just 40 centers in the United States to hold a National Cancer Institute (NCI) designation as a Comprehensive Cancer Center. As such, it ranks among the top centers in the nation conducting basic, translational and clinical cancer research, providing advanced patient care and serving the community through innovative outreach and education programs.
(Juli 2007) 

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