Dr. Kerry Courneya

They're a little bit different.

If it's strength training, we know there's going to be particular adaptations.

Or if it's aerobic exercise, there are going to be other adaptations.

But in terms of some of these biological changes, like the anti-inflammatory effects, the stimulation of the immune system and stuff, it doesn't seem to matter which type of exercise.

Certainly some support for more of the moderate intensity exercise is having more of a stimulation effect on the biological system.

Yeah, exactly.

So all these recommendations will generally be at the level of at least moderate intensity.

There's definitely been some research on the light intensity physical activity, just getting up and moving around and what are some of the benefits and benefits.

outcomes related to that type of exercise, but more compelling evidence once you get into the moderate intensity exercise zone, and certainly even more benefits with the vigorous intensity or the higher intensity exercise.

Yeah, there is good evidence on that.

So one of the mechanisms how exercise might lower the risk is through managing obesity.

But what we also see is exercise lowers the risk of cancer regardless of your obesity status.

So we can do the subgroup analysis of those who are BMI above 30, overweight, calorie, healthy weight.

All of them show a reduction.

So obesity is not the only mechanism by which exercise works.

is lowering the risk.

So even if you're obese and you don't lose weight, exercise can help you lower the risk of developing cancer.

We even see this with smokers.

So we can break them into sort of the smokers and the non-smokers with lung cancer risk.

And even those who are smoking, exercise will help them lower the risk.