For women diagnosed with breast cancer, regular exercise during and following treatment has been shown, through a number of different studies, to improve:

Physical health
Emotional well being
Overall quality of life

It can also help to improve body composition, muscle strength, confidence, mood, depression and anxiety.

Preservation or Improvements	Reductions
Muscle mass, strength and power	Number of symptoms and side effects
Physical function	Intensity of symptoms
Cardiorespiratory fitness	Duration of hospitalisation
Physical activity levels	Psychological and emotional distress
Range of motion	Depression and anxiety
Immune function	Chemotherapy completion rates
Body image, self esteem and mood

_{Ref:[1:46 pm] Chandrika Gibson PhD Sandra C. Hayes, Robert U. Newton, Rosalind R. Spence, Daniel A. Galvão, The Exercise and Sports Science Australia position statement: Exercise medicine in cancer management, Journal of Science and Medicine in Sport, Volume 22, Issue 11, 2019}

Exercise Benefits

Evidence also shows that exercise may also reduce the risk of breast cancer coming back. A 2019 systematic review found survivors who were physically active had a 40% lower risk of death than those who were sedentary.

_{Spei ME, Samoli E, Bravi F, et al. Physical activity in breast cancer survivors: A systematic review and meta-analysis on overall and breast cancer survival. Breast 2019; 44:144-152.}

Exercise Recommendations

150 to 300 minutes of moderate-intensity aerobic activity, 75 to 100 minutes of vigorous aerobic activity, or an equivalent combination of each intensity each week. This physical activity can be done in episodes of any length.
Muscle-strengthening activities at least 2 days a week
Balance training, in addition to aerobic and muscle-strengthening activity

_{Ref: 2018 Physical Activity Guidelines Advisory Committee. 2018 Physical Activity Guidelines Advisory Committee Scientific Report. Washington, DC: U.S. Department of Health and Human Services, 2018.}

Benefits of Home based exercise

Exercise doesn’t necessarily have to occur outside of the home. A recent Edith Cowan University study found that home-based resistance and aerobic exercise during radiotherapy is safe, feasible, and effective in accelerating cancer related fatigue (CRF) recovery and improving health-related quality of life (HRQoL).

_{https://pubmed.ncbi.nlm.nih.gov/36239907/}