I have torn my Bum muscle 3 x now...after 50 years of a dislocated hip, I had an op and all was great then I was out walking and bashed into an iron bar and could not walk home, had to shuffle and it took me 2 hours...took ages to get over that one, then, my oh was putting a bag full of 8 2 pint milk jugs into the car..I got in the way and it ripped again...ages to get over again...then, I took our dog for a walk and put him on a long lead due to shepp being moved and a boy chatted on a quad and off he went with me in tow, just bruises then, 3 days later I went out with my OH and the dog and he ran into the back of me and I went into orbit, just got ovetr that......so...be warned, I hate the ice, the mud, the leaves and walk like an 80 year old...I am sure I have told this before but I wanted to say once you tear something you must first build up the muscle around to hold the joint secure, I am mad as I was enjoying walking and now have to find safe flat places....the gravel im my garden works well, slip free, they have mud boarders to dig in, no problems and NO SLIPPPPS