A Roswell Park Cancer Institute study adds to the growing evidence that physical inactivity may increase the risk of some cancers – in this case, kidney and bladder cancer.
The research, published online in the journal Cancer Epidemiology, surveyed 160 kidney cancer patients, 208 with bladder cancer and a control group of 766 people who did not have cancer to examine whether lifetime recreational physical inactivity was associated with risk of developing cancer.
Researchers found a 77 percent increased risk of developing renal cancer and 73 percent increased risk of developing bladder cancer. They found similar risk exposure among both obese and non-obese participants, suggesting that the connection between inactivity and these cancers is not driven by obesity.
“We hope that findings like ours will motivate inactive people to engage in some form of physical activity," Kirsten Moysich, senior author, said in a statement. "You don’t have to run marathons to reduce your cancer risk, but you have to do something.”
The authors noted that larger studies are needed to substantiate the findings.