I try to use my walker, the one where you move arms and legs forward and backward, but truley hurts at back of my legs, am 71 kilos now, i can only do 2 or 3 minutes, but can walk 40 minutes to hour easliy? do i need magnesium, do i just need to push push push myself working up that extra minute every day, people use for half an hour or so. what am i doing wrong, tried warm ups first, different times of day, but still 2 or 3 minutes does it.

when you say your "walker", by the description it sounds like an elliptical or treadmill of some sort. if so, the pain in the back of your legs could be simply your muscles getting adjusted to that type of motion. Your hamstrings and calf muscles might not be used to that type/range of activity. Walking and elliptical machines will use slightly different muscles, and perhaps when you're walking you're not really pushing a quick pace?

What kind of pain are you having? If it's a "sore" kind of pain, and it doesn't hurt WHILE you're doing it, but afterwards, it is probably muscular. I find that even when I'm sore, once I start moving and stretching those muscles out, the soreness goes away by the end of my workout.

If it's a sharp or shooting pain, and it happens when you're on the machine, perhaps a join issue? Maybe see your GP and make sure you're okay.

when you say your "walker", by the description it sounds like an elliptical or treadmill of some sort. if so, the pain in the back of your legs could be simply your muscles getting adjusted to that type of motion. Your hamstrings and calf muscles might not be used to that type/range of activity. Walking and elliptical machines will use slightly different muscles, and perhaps when you're walking you're not really pushing a quick pace?

What kind of pain are you having? If it's a "sore" kind of pain, and it doesn't hurt WHILE you're doing it, but afterwards, it is probably muscular. I find that even when I'm sore, once I start moving and stretching those muscles out, the soreness goes away by the end of my workout.

If it's a sharp or shooting pain, and it happens when you're on the machine, perhaps a join issue? Maybe see your GP and make sure you're okay.

Yep happens when on machine, will discuss with doctor then, thanx