The ACS document, Nutrition and Physical Activity Guidelines for Cancer Survivors, highlights the therapeutic value of exercise during primary cancer treatment. "[E]vidence strongly suggests that exercise is not only safe and feasible during cancer treatment, but that it can also improve physical functioning, fatigue, and multiple aspects of quality of life."
As with every other aspect of Healthy Survivorship, prescriptions for exercise should be tailored to each individual.
Some clinicians advise certain survivors to wait to determine their extent of side effects with chemotherapy before beginning an exercise program. For those who were sedentary before diagnosis, low-intensity activities such as stretching and brief, slow walks should be adopted and slowly advanced. For older individuals and those with bone metastases or osteoporosis, or significant impairments such as arthritis or peripheral neuropathy, careful attention should be given to balance and safety to reduce the risk of falls and injuries. The presence of a caregiver or exercise professional during exercise sessions can be helpful.
[From Happiness in a Storm, page 52] "It would be a terrible disappointment if you tried to help your situation through exercise and ended up causing a preventable medical problem. Before you start any exercise program -- even walking -- have it approved by your physicain, perhaps in consultation with a physical or exercise therapist."