Regular exercise using fitness equipment could help to reduce women's chances of developing breast cancer after the menopause, according to new research.

Findings published in the BioMed Central Cancer (BMC Cancer) journal were based on a study of 118,899 postmenopausal women.

Researchers examined the relations between light and moderate-to-vigorous intensity physical activity over four periods of life, between the ages of 15 and 18 years old, 19 and 29 years old, and 35 and 40 years old.

More than seven hours a week of moderate to vigorous activity over the past ten years was associated with a 16 per cent reduction in postmenopausal breast cancer risk, compared to no activity at all.

The findings follow research by scientists at the University of Warwick, which indicated that middle-aged women that keep their weight in check are more likely to enjoy a healthy retirement.

Researchers found that putting on weight can reduce the chances of enjoying a healthy old age by 80 per cent.