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If you exercised before treatment, you might need to exercise less than usual or at a lower intensity during treatment. The goal is to stay as active and fit as possible. People who were inactive before cancer treatment may need to start with short, low-intensity activity, such as short slow walks.

When you are recovering from treatment


Many side effects get better within a few weeks after cancer treatment ends, but some can last much longer or even emerge later. Most people are able to slowly increase exercise time and intensity. What may be a low- or moderate-intensity activity for a healthy person may seem like a high-intensity activity for some cancer survivors. Keep in mind that moderate exercise is defined as activity that takes as much effort as a brisk walk.

When you are living disease-free or with stable disease


During this phase, physical activity is important to your overall health and quality of life. It may even help some people live longer. There’s some evidence that getting to and staying at a healthy weight, eating right, and being physically active may help reduce the risk of a second cancer as well as other serious chronic diseases. More research is needed to be sure about these possible benefits.

The American Cancer Society recommends that cancer survivors take these actions:

  • Take part in regular physical activity.
  • Avoid inactivity and return to normal daily activities as soon as possible after diagnosis.
  • Aim to exercise at least 150 minutes per week.
  • Include strength training exercises at least 2 days per week.

Ways regular exercise may help you during cancer treatment

  • Keep or improve your physical abilities (how well you can use your body to do things)
  • Improve balance, lower risk of falls and broken bones
  • Keep muscles from wasting due to inactivity
  • Lower the risk of heart disease
  • Lessen the risk of osteoporosis (weak bones that are more likely to break)
  • Improve blood flow to your legs and lower the risk of blood clots
  • Make you less dependent on others for help with normal activities of daily living
  • Improve your self-esteem
  • Lower the risk of being anxious and depressed
  • Lessen nausea
  • Improve your ability to keep social contacts
  • Lessen symptoms of tiredness (fatigue)
  • Help you control your weight
  • Improve your quality of life

We still don’t know a lot about how exercise and physical activity affect your recovery from cancer, or their effects on the immune system. But regular moderate exercise has been found to have health benefits for the person with cancer.

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