Breast cancer survivors
Her2+ breast cancer
People with a genetic mutation linked to cancer risk
Triple negative breast cancer
Women under 45
Women over 45
Exercise has many health benefits, but can it also help improve memory for breast cancer survivors? This research finds that breast cancer survivors who exercised more had less fatigue and distress (anxiety, depression, stress, and/or concern about recurrence) and scored better on memory tests. (8/2/16)
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Whether exercise helps memory impairment in breast cancer survivors.
Breast cancer survivors frequently report experiencing memory impairment, which is linked to depression, anxiety, and fatigue. In this study, the researchers wanted to know how exercise is related to memory impairment, and its effects in breast cancer survivors.
The researchers propose a model where more exercise leads to less fatigue and distress, which results in less memory impairment for breast cancer survivors. More work needs to be done to confirm the link between exercise and memory impairment.
Exercise provides many health benefits. According to the Centers for Disease Control (CDC), exercise helps people to reduce their risk of cardiovascular disease and type 2 diabetes, reduce their risk for some cancers, increase their chances of living longer, and strengthen bones and muscles, among other things. Breast cancer survivors experiencing memory impairment and its associated distress and fatigue should talk to their health care providers to see what other things they can do to improve their symptoms.
The National Comprehensive Cancer Network sets recommendations on weight management, nutrition and physical activity for cancer survivors. General principles of physical activity include:
The Chicago Tribune
Oncology Nurse Advisor
US News & World Report
Cancer survivors experience a number of long-term side effects that can range from physical problems to psychological and emotional issues. Researchers previously studied how memory impairment affects anxiety, depression and fatigue in breast cancer survivors. In this study, they looked at how lifestyle choices such as regular exercise affect memory impairment and the symptoms associated with it.
In the July 2016 edition of the journal Psycho-Oncology, Siobhan Phillips and her colleagues from Northwestern University and the University of Illinois Urbana Champaign published their work about the relationship between exercise and memory impairment.
Can exercise help ease the symptoms associated with memory impairment (fatigue, anxiety, and/or depression) for breast cancer survivors?
The study followed 1477 women. The women were at least 18-years-old, had been diagnosed with breast cancer, were English speaking, and had completed treatment for their cancer. The majority of the women were white (about 97%) and were diagnosed with ductal carcinoma in situ (DCIS) or early-stage (stage 1 or stage II) disease.
When women enrolled in the study they took surveys that evaluated their level of physical activity, distress, fatigue, and memory impairment. They then took the same survey 6 months later. A random subset of the participants wore accelerometers to measure their activity.
The study population of this research study was mostly white (about 97%), highly educated and had high annual household income. Because of this, the results of this study may not hold true for all women. Additionally, the researchers only had one follow-up after 6 months. More work should be done to extend this time period.
Memory impairment can also be affected by many factors in addition to exercise, so more work should be done to include diet and other psychosocial factors.
Finally, because this study used participants’ self-reported results, their reporting could be biased. Future studies should be done that include objective measures of cognitive functioning (the researchers only looked at the relationships between exercise and anxiety/fatigue, and the relationship between anxiety/fatigue and memory impairment—they did not look at cognitive function directly after exercise). Additionally, among women who had less fatigue/anxiety, it was not determined whether that was because they exercised more.
The results of this study suggest that exercise may be beneficial for memory impairment in breast cancer survivors. More work needs to be done to study this relationship; however, breast cancer survivors who are not exercising should work with a health care professional to create an exercise plan, as there are many established benefits to exercising.
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