If you purchased insurance through the Health Insurance Marketplace, you should report changes to the Marketplace when they happen. Changes to your household income or family size may affect your eligibility for the advance payments of the premium tax credit.
Step #1: Implement the Correct Weight Lifting Exercises. One-legged exercises are going to be your best option for strengthening the musculature around both knees. You want to make sure your strength in both legs is balanced. Strength imbalances in legs can cause you to put more stress on one knee and lead to problems.
Lifting the feet by about 60cm will result in a force increase of about 10% with respect to the standard position. So in summary, an 80kg individual will be supporting about 52kg in the standard position, 40kg in the knee position and 60kg with the feet elevated to a height of about 60cm.