Tuesday, February 2, 1999 Published at 12:50 GMT
Exercise 'can reverse ageing'
The ageing process is inevitable - but can be delayed
Regular exercise can turn back the ageing process, scientists have claimed.
A team of US researchers from the University of Texas says that walking, weightlifting, flexibility training and other forms of exercise can help older people avoid the disabilities normally associated with ageing - and even reverse the ageing process itself.
The researchers, writing in the journal Behavioural Medicine, argue that some decline in physical activity is an inevitable result of normal ageing.
But they warn that physical inactivity can hasten this decline and lead to the rapid onset of muscle wastage, decreased endurance and loss of flexibility and balance.
Older people, they argue, can slow down ageing and prevent chronic conditions by taking regular exercise.
The researchers cite several studies that demonstrate the benefits of exercise on the ageing process. These include:
They cite a study in which patients who already had coronary artery disease reduced their risk of fatal heart complications by 20-25% through exercise.
A sedentary lifestyle, they warn, also increases the risk of hip fractures. In one study women who spent less than four hours a day on their feet had nearly twice the risk of hip fractures than their more active counterparts.
Alison Rose, a spokesperson for Help the Aged, said: "We do know a small amount of exercise is good for you at all ages, particularly as you get older.
"However, you ought to be starting in middle age and need to be careful about doing anything too strenuous.".