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We developed a wearable device to reduce the physical stress on surgeons\u2019 lower extremities. The device mechanically facilitates maintaining a near\u2010upright posture. The surgeon's knees are gently bent by a knee\u2010joint locking mechanism, and fixing and releasing are performed independently on each side. The subjects were one female and two male surgeons, who wore the device during laparoscopic inguinal hernia repair or high anterior resection. Surface electromyogram (EMG) was conducted for both iliopsoas muscles. Control values were determined with the subject not wearing the device. Participants completed a post\u2010procedure questionnaire. With the device, EMG activity had a tendency to decrease in the left iliopsoas muscle (<jats:italic>P<\/jats:italic> = .055), but it changed little on the right (<jats:italic>P<\/jats:italic> = .406). The post\u2010procedure questionnaire showed an overall positive impression, although subjects reported some difficulty walking. This device decreases EMG activity and may improve a surgeon's work environment.<\/jats:p>","DOI":"10.1111\/ases.12812","type":"journal-article","created":{"date-parts":[[2020,7,9]],"date-time":"2020-07-09T02:40:13Z","timestamp":1594262413000},"page":"144-148","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["A wearable lower extremity support for laparoscopic surgeons: A pilot study"],"prefix":"10.1111","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5265-5111","authenticated-orcid":false,"given":"Hiroshi","family":"Kawahira","sequence":"first","affiliation":[{"name":"Medical Simulation Center Jichi Medical Univerisity  Shimotsuke Japan"},{"name":"Department of Surgery Jichi Medical University  Shimotsuke Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryoichi","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Department of Biodesign Institute of 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