MAT Evaluation – An essential part of scripting a wheelchair.
MAT Evaluation - an essential part of scripting a new wheelchair.
The mechanical assessment tool (MAT)
The Agency for clinical innovation states “The MAT is commonly used by seating clinicians as part of the seating assessment process. It may also be referred to as a biomechanical assessment and physical evaluation.
The MAT is a musculoskeletal examination of the client’s:
- Range of motion
- Joint flexibility
- Muscle length, and
- Skeletal alignment.
It usually involves postural assessment of the person in their existing seating system, in supine, and sitting on a firm surface. Neurological issues such as tone and spasm pattern should be noted as they affect posture and muscle length.
Limited muscle length or joint flexibility can restrict the client’s seated posture. Functional capacities such as arm reach to the controls, or propulsion of a manual wheelchair may also be affected.
Tone and spasm may become evident whilst conducting the MAT. An assessment task may be halted during an intense spasm and can be resumed when it subsides. Spasm can be triggered by internal stimuli such as urinary tract infection or blocked catheter, or external stimuli such as rough terrain or a change in backrest angle. Unsupported posture during spasm may place the client at risk of falls or lead to the development of postural deformities.
The MAT process facilitates the selection of a seating system with appropriate ‘size’ and ‘shape’ for the client. This is done with respect to the client’s requirement for functional capacity, posture and pressure management.” https://aci.health.nsw.gov.au/networks/spinal-cord-injury/spinal-seating/module-3/the-mechanical-assessment-tool-mat
The MAT is an essential part of scripting a wheelchair seating system for a user. It allows the therapist to understand how the body reacts to different forces, and any adjustments or considerations that may be required. It is essential to understand what seating components may be required e.g a customised cushion or built up and modified backrest, and other factors such as what type of hip belt is needed, is a chest harness required? or what angles do the wheelchairs frame need to be set at.
Our wheelchair and seating OT Jamie is highly experienced in the full wheelchair scripting process for kids and adults, and is able to offer advice and support not only to participants, but junior therapists also. Contact us for more info.