Pinch aperture proprioception: reliability and feasibility study

Journal of Physical Therapy Science
Abdalghani YahyaMarcio Dos Santos

Abstract

[Purpose] To establish the reliability and feasibility of a novel pinch aperture device to measure proprioceptive joint position sense. [Subjects and Methods] Reliability of the pinch aperture device was assessed in 21 healthy subjects. Following familiarization with a 15° target position of the index finger and thumb, subjects performed 5 trials in which they attempted to actively reproduce the target position without visual feedback. This procedure was repeated at a testing session on a separate date, and the between-session intraclass correlation coefficient (ICC) was calculated. In addition, extensor tendon vibration was applied to 19 healthy subjects, and paired t-tests were conducted to compare performance under vibration and no-vibration conditions. Pinch aperture proprioception was also assessed in two individuals with known diabetic neuropathy. [Results] The pinch aperture device demonstrated excellent reliability in healthy subjects (ICC 0.88, 95% confidence interval 0.70-0.95). Tendon vibration disrupted pinch aperture proprioception, causing subjects to undershoot the target position (18.1 ± 2.6° vs. 14.8° ± 0.76, p<0.001). This tendency to undershoot the target position was also noted in individuals with diabetic n...Continue Reading

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Citations

Oct 6, 2019·Experimental Brain Research·Abdalghani YahyaMarcio Dos Santos
Apr 22, 2020·Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists·Raquel Cantero-Téllez, Ivan Medina Porqueres

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