The Thigh Tightener

These exercise is also permitted by US arthritis Foundation.
Exercise 27: Exercises for the quardriceps muscle in the front of the thigh are valuable in rheumatoid arthritis for preventing bent-knee deformities. Lying on your back flat try to push your right knee down into the bed or floor. You should be tightening the muscle on the front of your thigh. Field this for a slow count of five. Relax. Repeat with the left leg. Alternate and repeat for each leg five times.

The Wall pusher

This exercise is also permitted by US arthritis Foundation.
Exercise 28: Face a wall and place your elbow, the back of your forearm, and the back of your hand against the wall. Your arms should be bent at a right angle. Push your entire forearm (elbow, wrist and band) against the wall as if you are trying to push the wall away. Be sure you stand up straight. Do not lean into the wall. Hold for a slow count of five and than release. Repeat five times with one arm, then five times with the other arm. You can also do this exercise while sitting in a chair and pushing against the arm of the chair.

The Desk holder

This exercise is also permitted by US arthritis Foundation.
Exercise 29: Sit in a chair at a table. Place a towel on the table and rest the front of your forearm and hand down against the towel. Hold for a slow count of five. Relax. Repeat five times with each arm.

The Squeezer

This exercise is also permitted by US arthritis Foundation.
Exercise 30: This exercise is for the gluteal muscles your buttocks. Lie flat on your stomach. Squeeze your buttock muscles together. Hold for a slow count of five. Relax. Repeat five times.