Pensioners can dramatically boost their health with just one minute of intense exercise twice a week, according to a new study.
Scientists at Abertay University in Dundee found that in just six weeks the physical fitness of older people improved significantly and blood pressure was lowered.
Participants went through an exercise regime involving two sessions of high-intensity training a week, with six-second sprints on an exercise bike.
It is the first time that the effect of high-intensity training (HIT) on the health of pensioners has been tested, the researchers said.
They believe the regime could provide an alternative to the current exercise guidelines for older people, which many find difficult to meet.
The university's Dr John Babraj said: "What we found is that it not only improved the participants' physical health and ability to do these things, but also their perceptions of their own ability to engage in physical activity."
He urged people to consult their doctor before starting high-intensity training in case there were any underlying health issues.