But a newly approved device in the U.S. could eliminate the need for doctors to extract a piece of tissue from the breast to check for cancerous cells, New Scientist magazine reports. A scanner carrying a network of electrodes is placed over suspect areas of the breast, while a wire is attached to the patient's hand. The differences are translated into computer images which allow specialists to locate and identify cancerous areas. It isn't as hard on the joints as, say, jogging. And just half an hour will add years to your life.
Enthusiasts go further, adding weights and or poles to their stride.
Studies by Dr. John Porcari, a sports science specialist at the University of Wisconsin-La Crosse, found that using the devices can improve cardiovascular function and burn up more calories. As it turns out, a pair of weighted walking poles is best for raising intensity of activity. According to Porcari, the poles are particularly useful for people who can't walk fast enough to get their heart-rate up to a training level. The former are recommended as being more physically demanding. More will only strain the arm and shoulder muscles.