Effects of exercise intervention in breast cancer survivors: a meta-analysis of 33 randomized controlled trails.

45 Even though all the five studies favored exercise intervention, only three of them reported a clinical significant improvement in quality of life on breast cancer survivors, 42 , 45 , 56 and the results in other two studies failed to reach statistical significance. 30 , 58 We observed a significant improvement in depression, anxiety, and self-esteem in breast cancer patients, which were frequently reported in pervious meta-analyses and systematic reviews with mixed cancer patients. 59 , 61 – 64 We also discovered that the attitude toward life in intervention group was more positive than control group.

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