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.
Polymyalgia rheumatica (PMR) is an inflammatory condition of unknown cause which is characterised by severe bilateral pain and morning stiffness of the shoulder, neck and pelvic girdle. There is ongoing debate as to whether or not PMR represents a form of giant cell arteritis (GCA), or whether they are distinct conditions, as they often co-exist, they share many common features and both respond to corticosteroids.