Handgrip strength correlates with walking in lumbar spinal stenosis
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ORIGINAL ARTICLE
Handgrip strength correlates with walking in lumbar spinal stenosis Hirokazu Inoue1 · Hideaki Watanabe2 · Hitoshi Okami3 · Yasuyuki Shiraishi1 · Atsushi Kimura1 · Katsushi Takeshita1 Received: 20 January 2020 / Revised: 15 June 2020 / Accepted: 1 July 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Purpose To examine the relationship between handgrip strength and leg extension power, walking speed, and intermittent claudication for lumbar spinal stenosis (LSS) using computed tomography. Methods We examined patients who underwent laminectomy for LSS from June 2015 through March 2018. Before spine surgery, we evaluated walking distance, handgrip strength, leg extension power (LEP), 10-m walk test (time and steps), psoas muscle index (PMI), and the area of both total and multifidus muscle using plain computed tomography imaging at the third lumbar level. Handgrip strength was compared with comorbidities including anemia, diabetes, hypertension, marital status, etc. Results There were 183 patients (55 female, 128 male) with a mean age of 70.5 years. Handgrip strength significantly correlated with LEP (P
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