How much resistance (in weight) do the springs supply?
Initial tension is 5 lbs. for the first inch of tension (for full strength springs), and then increases by approximately 1 lb. per inch. Multiply the number of springs and distance traveled to get approximate tension in lbs. On a STOTT PILATES REFORMER, four springs are full tension & one is half. (Most people simply make a note of the number of springs used per exercise).
