A new device for foot sensory examination employing auto-presentation of shear force stimuli against the skin

• SATO Mitsuru

  School of Nursing and Rehabilitation Sciences, Showa University

• TAKAHASHI Noriyo

  Tokuyukai Rehabilitation Clinic

• YOSHIMURA Shinichi

  Asuka Electric Co., Ltd

• YAMASHITA Kazuhiko

  Faculty of Healthcare, Tokyo Healthcare University

• WADA Chikamune

  Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology

• INO Shuichi

  National Institute of Advanced Industrial Science and Technology

• HIGUCHI Akiko

  Division of Diabetes, Metabolism, and Endocrinology, School of Medicine, Showa University

• FUKUI Tomoyasu

  Division of Diabetes, Metabolism, and Endocrinology, School of Medicine, Showa University

• HIRANO Tsutomu

  Division of Diabetes, Metabolism, and Endocrinology, School of Medicine, Showa University

抄録

A new plantar foot sensation-testing instrument (PFS Tester) was developed for the practical screening of diabetic neuropathy and the prediction of fall risk for frail elderly people. Human plantar sensation may play an important role in many processes, including postural control, walking, and the clinical testing of diabetic peripheral neuropathy. The PFS Tester uses shear force on the skin as the mechanical stimulus, unlike any existing devices or tools for sensory examination, and it automatically provides the test site on the plantar foot with a pre-programmed sequence of stimuli. Although the PFS Tester uses two factors to distinguish stimulus intensity (a variable range and the speed of the shearing movement), measurements of the shear force on a material that simulates a human body showed that only a range of the probe movement affected the stimulus intensity. Also, the increment profiles of twenty-grade stimulus of the PFS Tester were similar to those of the Semmes-Weinstein (SW) monofilament, which is the most typical sensory exam tool. In addition, repetitive measurements of the force using the PFS Tester and the SW monofilament showed that the stimulus intensity of the PFS Tester had better reproducibility than that of the SW monofilament. To verify the validity of the sensory examination's results of the PFS Tester, sensory thresholds on three sites of the plantar foot in nineteen subjects with diabetes mellitus were measured using the SW monofilament test and the PFS Tester. The sensory thresholds obtained by the PFS Tester had a favorable correlation to those obtained by the SW monofilament test. The results of this study demonstrated that a PFS Tester could be used as a simple sensory examination machine with good reliability, simplified operation, and a high compatibility with the SW monofilament test.

収録刊行物

• Journal of Biomechanical Science and Engineering

  Journal of Biomechanical Science and Engineering 10 (2), 14-00487-14-00487, 2015

  一般社団法人 日本機械学会

キーワード

• Foot sensation
• Neurological evaluation
• Semmes-Weinstein monofilament test
• Mechanical stimulus
• Fall prevention
• Diabetic peripheral neuropathy
• Health screening

詳細情報

• CRID: 1390001205261678848
• NII論文ID: 130005073291
• DOI: 10.1299/jbse.14-00487
• ISSN: 18809863
• Web Site: https://www.jstage.jst.go.jp/article/jbse/10/2/10_14-00487/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可