Step 2Keeping dumbbells close to body, bend at knees and slowly lower dumbbells toward floor. Step 3Contract hamstrings and glutes as you straighten out your legs and return to starting position. For more great exercises to improve your strength and fitness, check out: 1  Total Body Workout Routine. 2  Warm-Up Exercises.
Polyarthritis is any type of arthritis that involves 5 or more joints simultaneously. It is usually associated with autoimmune conditions and may be experienced at any age and is not gender specific.olyarthritis is most often caused by an auto-immune disorder such as rheumatoid arthritis, amyloidosis, psoriatic arthritis, and lupus erythematosus but can also be caused by infection with an alphavirus such as chikungunya virus and Ross River virus. This condition is termed alphavirus polyarthritis syndrome.
Polyarteritis Nodosa. Polyarteritis nodosa (PAN) is a rare disease that results from blood vessel inflammation (vasculitis) causing injury to organ systems. The areas most commonly affected by PAN include the nerves, intestinal tract, heart, and joints.asculitis is a general term that refers to inflammation of the blood vessels. When inflamed, the blood vessel may become weakened and stretch in size, which can lead to aneurysms, or become so thin that they rupture resulting in bleeding into the tissue.