During this study the investigators will compare the use of two treadmill tests in people diagnosed with cancer. The STEEP treadmill protocol is often used to evaluate the endurance of people diagnosed with cancer, however, since it is based on step increases in speed or ramp, it may not related to normal function. The new test, which is based on the body response to increased activity has not been used with people with cancer but may provide a better approximation of endurance demands during daily function. Our question is whether the new treadmill test can be used to evaluate aerobic function with people with cancer better than the STEEP treadmill test.

Inclusion Criteria:

• Participants are required to be adults (age 16 or over),
• Diagnosed with cancer, at any stage of treatment (during or after treatment),
• Able to follow instructions in English, and provide informed consent.
• Participants need to be considered "well" to participate. A "well participant" has been defined as a cancer survivor who is living at home, able to ambulate independently without a gait aid (single point cane is acceptable), has no acute medical conditions, and passes pre-exercise safety screening.

Exclusion Criteria:

• Cancer survivors with metastatic disease.
• Cancer survivors who are defined as unwell.

Adult well cancer survivors