Agree ,my problem is motivation lol ,do about 2to 4 miles in the morning (dogs do a lot more than me as they are free running in fields ) then get them home and feed them a little something . 2 to three hours later we have a 6 mile roadwalk after the roadwalk we repeat the morning walk (after a coffee and a smoke lol) My point is I have a 13 year old terrier here that can do this every day ,so could I do more ? Just to add they do not work all the time ,just when there is the occasional rabbit and there aint many over our fields !