Akiko Morimoto1, Nao Sonoda1, Satoshi Ugi2, Katsutaro Morino2, Osamu Sekine2, Ken-Ichi Nemoto2, Mihoko Ogita1,3, Yukako Tatsumi1,4, Shin Murata5, Hiroshi Maegawa2, Naomi Miyamatsu1. 1. 1Department of Clinical Nursing, Shiga University of Medical Science, Tsukinowa-cho Seta, Shiga, Otsu 520-2192 Japan. 2. 2Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho Seta, Otsu, Shiga 520-2192 Japan. 3. 3Department of Nursing, Kyoto Koka Women's University, 38 Nishikyogoku-Kadonocho, Ukyo-ku, Kyoto, Kyoto 615-0882 Japan. 4. 4Department of Preventive Medicine and Public Health, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka 565-8565 Japan. 5. 5Department of Physical Therapy, Kyoto Tachibana University, 34 Yamada-cho Oyake, Yamashina-ku, Kyoto, Kyoto 607-8175 Japan.
Abstract
AIM: This study assessed the association between symptoms of bilateral numbness and/or paresthesia in the feet and postural instability in Japanese patients with diabetes. METHODS: This cross-sectional study included 303 patients with diabetes, aged 40-88 years, who were referred to an outpatient diabetic clinic between January and July 2013 at Shiga University of Medical Science Hospital. A posturography test was used to evaluate postural sway in patients. Indices of postural sway were the total length and the enveloped area. Analysis of covariance was used to estimate the multivariable-adjusted means of indices of postural sway according to the presence or absence of symptoms of bilateral numbness and/or paresthesia in the feet. RESULTS: Of 303 patients, 35 (11.6 %) had symptoms of bilateral numbness and/or paresthesia in the feet. After adjustment for age, sex, diabetic retinopathy, regular exercise, body mass index, hemoglobin A1c level, and quadriceps' strength, patients with symptoms had higher levels of postural sway length and an enveloped area in the posturography test than those without symptoms. In addition, we observed similar results when we analyzed 234 patients aged ≥60 years. CONCLUSIONS: Our findings suggest that patients who had symptoms of bilateral numbness and/or paresthesia in the feet may have more postural instability than those without symptoms.
AIM: This study assessed the association between symptoms of bilateral numbness and/or paresthesia in the feet and postural instability in Japanese patients with diabetes. METHODS: This cross-sectional study included 303 patients with diabetes, aged 40-88 years, who were referred to an outpatient diabetic clinic between January and July 2013 at Shiga University of Medical Science Hospital. A posturography test was used to evaluate postural sway in patients. Indices of postural sway were the total length and the enveloped area. Analysis of covariance was used to estimate the multivariable-adjusted means of indices of postural sway according to the presence or absence of symptoms of bilateral numbness and/or paresthesia in the feet. RESULTS: Of 303 patients, 35 (11.6 %) had symptoms of bilateral numbness and/or paresthesia in the feet. After adjustment for age, sex, diabetic retinopathy, regular exercise, body mass index, hemoglobin A1c level, and quadriceps' strength, patients with symptoms had higher levels of postural sway length and an enveloped area in the posturography test than those without symptoms. In addition, we observed similar results when we analyzed 234 patients aged ≥60 years. CONCLUSIONS: Our findings suggest that patients who had symptoms of bilateral numbness and/or paresthesia in the feet may have more postural instability than those without symptoms.
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