Journal
NEUROSCIENCE LETTERS
Volume 659, Issue -, Pages 54-59Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2017.08.071
Keywords
Diabetes mellitus; Tactile sensitivity; Sensory; Feedback; Motor control; Manipulation
Categories
Funding
- Sao Paulo Research Foundation (FAPESP) [2010/02939-4, 2014/26397-7]
- National Council of Technological and Scientific Development (CNPq) [479903/2013-1]
- Coordination for the Improvement of Higher Education Personnel (CAPES - Brazil)
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [10/02939-4] Funding Source: FAPESP
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Diabetic peripheral neuropathy (DPN) affects the sensory function of the hands and, consequently, may negatively impact hand dexterity, maximum grip strength (GS(Max)), and hand grip force (GF) control during object manipulation. The aims of this study were to examine and compare the GF control during a simple holding task as well as GS(Max) and hand dexterity of individuals with DPN and healthy controls. Ten type 2 diabetic individuals diagnosed with DPN and ten age- and gender-matched healthy controls performed two traditional timed hand dexterity tests (i.e., nine-hole peg test and Jebsen-Taylor hand function test), a GS(Max) test, and a GF control test (i.e., hold a instrumented handle). The results indicated that individuals with DPN and controls produced similar GS(Max). However, individuals with DPN took longer to perform the hand dexterity tests and set lower safety margin (exerted lower GF) than controls when holding the handle. The findings showed that mild to moderate DPN did not significantly affect maximum hand force generation, but does impair hand dexterity and hand GF control, which could impair the performance of daily living manipulation tasks and put them in risk of easily dropping handheld objects.
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