A recent study has found that elderly people walk at a slower speed and get tired more quickly because of loss of strength and mass in leg muscles. Researchers at the Carnegie Mellon University in Pittsburgh Pennsylvania stated that the elders should focus on building their leg muscles as it may be the only effective way to improve their walking. Walking performance measured in terms of energy efficiency i.e. how far one can travel per calorie consumption and walking speed has been shown to decline as people get older. This decline in walking performance can lead to a less active
