We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
OPORNICE ZA PRSTE KOT SREDSTVO ZA ZMANJŠANJE KOGNITIVNIH ZAHTEV PRI FUNKCIJSKIH NALOGAH ZA OSEBE S SINDROMOM EHLERS-DANLOS?
- Authors
Ramstrand, Nerrolyn; Andersen, Joan Quist; Jensen, Anne-Mette
- Abstract
Background Ehlers-Danlos Syndrome (EDS) is a group of hereditary disorders that affect connective tissues. While there are numerous types of EDS with differing clinical presentations, several types share the symptom of severe hypermobility. EDS is also associated with fatigue, joint dislocation, muscle weakness and pain (1). Hypermobility of the fingers can severely affect upper extremity functional performance in individuals with EDS and it is likely that relatively simple tasks require more time and attentional demand than they would for an individual without the diagnosis. To address this issue, finger orthoses are often prescribed to provide stability and prevent undesirable movement at the proximal and distal interphalangeal joints. Generally, attention is defined as the process of selecting and directing mental effort towards a stimulus (2). Neural substrates associated with attention are often cited to include the dorsolateral prefrontal cortex (dlPFC), the ventrolateral prefrontal cortex (vlPFC) and the dorsal anterior cinculate (dACC). This can be measured by a variety of imaging systems. The aim of this study was to determine if finger orthosis can assist in reducing the attentional demand required to perform upper-extremity functional tasks in individuals with EDS who have hypermobility. Methods 14 individuals with EDS and a clinical presentation of hypermobility were recruited for this study. Each participant performed 4 tests of upper extremity function with and without their finger orthoses and while fitted with a Functional Near Infrared Spectroscopy system (fNIRS). fNIRS allows functional imaging of cortical brain structures by monitoring concentration changes in oxygenated and deoxygenated hemoglobin. Specific tests performed by each participant included a targeted Box and Block test, a writing test, a water pouring task and picking up coins from a table. The order of testing (orthosis, no-orthosis) was randomized. Results Data was analysed compare the relative concentration of oxygenated and deoxygenated haemoglobin while performing each task with and without finger orthoses. Results generally indicated significantly reduced concentrations of oxygenated haemoglobin in the pre-frontal cortex when participants wore their finger orthoses. Conclusion Results from this study suggest that finger orthoses designed to manage hypermobility of the fingers are effective in reducing the attentional demand required to perform upper extremity functional tasks.
- Subjects
NEAR infrared spectroscopy; ARM; EHLERS-Danlos syndrome; PREFRONTAL cortex; MUSCLE weakness
- Publication
Rehabilitation / Rehabilitacija, 2019, Vol 18, p53
- ISSN
1580-9315
- Publication type
Article