After an old injury..(rolling a truck 1 1/2 times)....
knees aren't what they should be, I had to quit running and my distance on hikes has been cut down,.....but with some good hiking boots and a walking stick I still do some hiking and power-walking for health.just not as long a trips...doc suggested that the running would not be good on the old knees...
always check with a doc to be sure you don't cause any injuries...
