- assist in treatment and healing of the sacroiliac joint
- act like an external ligament
- prevent stress on the sacroiliac ligaments
- correctly hold the SIJ stable
- normalize the function of the SIJ
- reduce muscular pain due to sacroiliac injury
- balance muscular compensation patterns to SIJ injury
- increase tone in inhibited muscles
- decrease tone in tight muscles
- increase muscle strength and endurance throughout the body
- help prevent re-injury during bending, lifting, and twisting
- help maintain tone in the pelvic floor muscles during pregnancy
- normalize core power transfer
- enhance rehab programs
- allow safer and more effective exercise and stretching
- reduce the likelihood of the leg muscles "giving out"
- improve posture
The Serola SI Belt is designed to hold the SIJ together so the likelihood of it opening beyond normal between treatments is greatly reduced.
If the joint re-opens, the Serola SI Belt will minimize re-injury to the joint and its ligaments.
In a study of 12 patients with pelvic instability, Walheim et al.  found that 9 patients experienced some relief with a sacroiliac belt.
The Serola SI Belt is the only belt designed to normalize the action of the SIJ (see Why Buy a Serola Sacroiliac Belt).
While wearing the Serola SI Belt, the stress to the ligaments is eliminated or minimized so that muscle tone, and strength, is normalized (See The Serola Challenge).
Mens et al. stated "A pelvic belt is a well-established orthosis to treat peripartum pelvic girdle pain." and "The mobility of the pelvic joints was modified by a pelvic belt and measured by the Chamberlain (radiographic) method."
During rehabilitation, the Serola SI Belt holds the sacrum to the ilia with the proper tension so that, during exercise, as you bring the ilia backward, it carries the sacrum with it. The ligaments are not stressed and the joint remains intact; this is critical to proper rehabilitation. Too much or too little tension will create muscular spasm and inhibition.
Exercise without the Serola SI Belt will only give temporary relief of muscle pain but may force the joint further into lesion, which will cause micro-trauma to the ligaments, and allow the muscle tightness to return later, probably with increased force.
While standing erect, internal oblique muscle activity significantly decreased while wearing a sacroiliac belt, which indicates that a pelvic belt contributes to SIJ stability. Snijders et al. 
1. Walheim GG: Stabilization of the pelvis with the Hoffmann frame. An aid in diagnosing pelvic instability. Acta orthopaedica Scandinavica 1984, 55:319-324.
2. Mens JM, Vleeming A, Snijders CJ, Stam HJ, Ginai AZ: The active straight leg raising test and mobility of the pelvic joints. Eur Spine J 1999, 8:468-473.
3. Snijders CJ, Ribbers MT, de Bakker HV, Stoeckart R, Stam HJ: EMG recordings of abdominal and back muscles in various standing postures: validation of a biomechanical model on sacroiliac joint stability. J Electromyogr Kinesiol 1998, 8:205-214.