I dont know if im doing them properly or not?.
Ive started doing them regularly and have been for about 2 months now. I have my knee's bent, and dont go up all the way (which i thought was the correct way).
Sometimes tho i end up with back ache afterwards, i dont mean the kind as in i cannot walk properly, and i often put my hand on my back in discomfort, i mean the less severe kind, where you can feel its been a bit over worked, and its quite a nagging sensation. Its gone by the next day, or after 3-4 hours, but is this normal?, or should your back always feels as fresh as a daisy?.
Do you keep your back as straight as you can when going up and down, or is curving it a bit, ok?.