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      Establishing physical activity in breast cancer: self-report versus activity tracker

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          Abstract

          <p class="first" id="d3886358e125">Establishing accurate estimates of physical activity at baseline is essential for interventions assessing the potential benefits of exercise in adults with cancer. This study compares self-reported physical activity with independent data from activity trackers in women with early breast cancer (BC) recruited into a "walking" intervention during chemotherapy. </p>

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          Exercise for women receiving adjuvant therapy for breast cancer

          A huge clinical research database on adjuvant cancer treatment has verified improvements in breast cancer outcomes such as recurrence and mortality rates. On the other hand, adjuvant and neoadjuvant therapy with chemotherapy and radiotherapy impacts on quality of life due to substantial short- and long-term side effects. A number of studies have evaluated the effect of exercise interventions on those side effects. This is an updated version of the original Cochrane review published in 2006. The original review identified some benefits of physical activity on physical fitness and the resulting capacity for performing activities of daily life. It also identified a lack of evidence for other outcomes, providing clear justification for an updated review.
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            Nutrition and Physical Activity During and After Cancer Treatment: An American Cancer Society Guide for Informed Choices

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              Is Open Access

              The effect of exercise on cancer-related fatigue in cancer survivors: a systematic review and meta-analysis

              Objective The objective of the study was to conduct systematic review and meta-analysis to establish the effect of exercise interventions on cancer-related fatigue (CRF) in cancer survivors, compared to non-exercise intervention controls. Methods Trials published between January 1st 2000 and August 17th 2016 were included through PubMed database search and search of references. Eligible trials compared the effect of an exercise intervention on CRF compared to non-exercise intervention controls, with CRF as primary outcome and measured by validated self-report questionnaire, in cancer survivors not receiving palliative care. We evaluated risk of bias of individual trials following Cochrane Quality criteria. We performed a random-effects meta-analysis in the low risk of bias trials with intervention type, exercise intensity, adherence, and cancer type as moderators, and also performed meta-regression analyses and a sensitivity analysis including the high risk of bias trials. Results Out of 274 trials, 11 met the inclusion criteria, of which six had low risk of bias. Exercise improved CRF with large effect size (Cohen’s d 0.605, 95% CI 0.235–0.975) with no significant difference between types of cancer. Aerobic exercise (Δ=1.009, CI 0.222–1.797) showed a significantly greater effect than a combination of aerobic and resistance exercises (Δ=0.341, CI 0.129–0.552). Moderator and meta-regression analyses showed high adherence yielding best improvements. Conclusion Exercise has a large effect on CRF in cancer survivors. Aerobic interventions with high adherence have the best result.
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                Author and article information

                Journal
                Breast Cancer Research and Treatment
                Breast Cancer Res Treat
                Springer Science and Business Media LLC
                0167-6806
                1573-7217
                July 2019
                April 30 2019
                July 2019
                : 176
                : 2
                : 395-400
                Article
                10.1007/s10549-019-05263-3
                31041684
                62308513-96e3-4015-bfe8-d706be8c5a33
                © 2019

                http://www.springer.com/tdm

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