The sensory dynamic orthotics (SDO) are a custom made to measure product, designed to provide compression to increase sensory and proprioceptive feedback as well as support to the musculoskeletal system [1]. The compressive garment comes in a wide range of designs and style options, from a glove to a full body suit.
SPIO which stands for stabilizing pressure input orthosis by SPIO, is a compressive garment that is useful for providing sensory input to improve trunk tone, function, and posture [2]. The garments can be custom to measure or chosen from a range of off the shelf sizes. There are different types of compressive garment, including a TLSO, upper body long sleeve and short sleeve, lower body ankle and knee length orthoses.

Indications for the use of the SDO in the management and reduction of abnormal tone in neurological conditions include cerebral palsy, TBI, spinal injury, cerebellar ataxia, spina bifida, CVA/stroke, multiple sclerosis (MS), and focal dystonia [1]. The use of SPIO is ideal for people with hypotonia, cerebral palsy, down syndrome, muscular atrophy, athetosis, autism, spastic diplegia and sensory processing disorders [2].
Figure 1- Pro-Tech garment guide [1]
Figure 2- SPIO classic TLSO and lower body orthosis [2]
Clinical observations and studies have shown that people with abnormal muscle tone can achieve more control over movement when suitable feedback is provided [1]. These devices aim to provide support and stability to the Musculo-skeletal system, as well as increase sensory and proprioceptive feedback. These garments are best used in conjunction with physical therapy for the patient to learn proper control of their body while using the compressive garment [1].
References:
[1] Protech SDO brochure – Pro-Tech International. (n.d.). Retrieved February 24, 2022, from http://protech-intl.com/assets/pdf/ProTech_SDO_Brochure.pdf
[2] SPIO. (n.d.). Retrieved February 24, 2022, from
https://www.spioworks.com/