Keto Burn 1250 just worked what is the correct intensity for you but it is important you challenge yourself but up now for me for a little light jog or if you're happy still doing your walking and what you could do if little jog back for four so you travel forwards for four and the leg comes behind now this one is absolutely fine for the knees if you don't like doing them just don't bend as low and you're just going to draw the arms up and a light little jog or a march back I was just trying to get a little bit creative and try and think of some