Walking cuts breast cancer risks

Posted 08/10/2013

Post-menopausal women who walk for an hour a day can cut their chance of breast cancer significantly, a study has suggested. The report, published by the American Cancer Society, followed 73,000 women for 17 years and found that walking for at least seven hours a week lowered the risk of the disease.

The American Cancer Society team said this was the first time reduced risk was specifically linked to walking while UK experts said it was more evidence that lifestyle influenced cancer risk.

The participants in the study were asked to complete questionnaires on their health and on how much time they were active and participating in activities such as walking, swimming and aerobics and how much time they spent sitting watching television or reading. They completed the same questionnaires at two-year intervals between 1997 and 2009. Of the women, 47% said walking was their only recreational activity. Those who walked for at least seven hours per week showed a 14% lower risk of breast cancer compared to those who walked three or fewer hours per week.

Dr Alpa Patel, the senior epidemiologist who led the study, said: “Given that more than 60% of women report some daily walking, promoting walking as a healthy leisure-time activity could be an effective strategy for increasing physical activity amongst post-menopausal women. We were pleased to find that without any other recreational activity, just walking one hour a day was associated with a lower risk of breast cancer in these women. More strenuous and longer activities lowered the risk even more.”

Baroness Delyth Morgan, chief executive of Breast Cancer Campaign, said: “This study adds further evidence that our lifestyle choices can play a part in influencing the risk of breast cancer and even small changes incorporated into our normal day-to-day activity can make a difference. We know that the best weapon to overcoming breast cancer is the ability to stop it occurring in the first place. The challenge now is how we turn these findings into action and identify other sustainable lifestyle changes that will help us prevent breast cancer.”

A recent poll for the charity Ramblers found a quarter of adults walk for no more than an hour a week – but being active is known to reduce the risk of a number of cancers.

Julie Crossley, a medical injury lawyer at Ashtons Legal, adds: “This is a very encouraging survey and goes to show that something as simple as walking each day can prevent cancer. The more that is done to encourage as many people as possible to walk more, the better. The good news is that the message is getting out there slowly and surely. For instance, Ashtons Legal has teams taking part in the Healthy Ambitions ‘One Million Steps Challenge’ this month. It is not just post-menopausal women who will benefit from walking more.”