{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:20:49Z","timestamp":1760149249492,"version":"build-2065373602"},"reference-count":65,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,7,17]],"date-time":"2023-07-17T00:00:00Z","timestamp":1689552000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JFMK"],"abstract":"<jats:p>Sixty percent of all law enforcement officers (LEOs) experience low back pain (LBP), with the LEO duty belt (LEODB) commonly reported to be a contributing factor. The primary purpose of the study was to investigate the LEODB\u2019s effect on muscular activity and compare it to a tactical vest, which is a commonly used alternative to an LEODB. In total, 24 participants (13 male, 11 female; mass, 73.0 \u00b1 11.1 kg; height, 169.0 \u00b1 10.0 cm; age, 24.0 \u00b1 5.8 years) completed a progressive series of hip hinge tasks in a single testing session. All participants completed four conditions (no belt, leather belt, nylon belt, and weight VEST) in a randomized order. Surface electromyography (sEMG) sensors were placed bilaterally on the rectus abdominus, multifidus, biceps femoris, and rectus femoris. Across all tasks, no significant effects of load on muscle activity were found for any of the muscles. Participants rated the VEST condition as more comfortable (p &lt; 0.05) and less restrictive (p &lt; 0.05) than either LEODB. The findings suggest an LEODB does not alter muscle activity during bodyweight hip hinging or lifting objects from the ground. Future research should examine whether changes in muscle activity occur with durations of LEODB wear more similar to an actual work shift duration for LEOs (\u22658 h).<\/jats:p>","DOI":"10.3390\/jfmk8030099","type":"journal-article","created":{"date-parts":[[2023,7,18]],"date-time":"2023-07-18T01:46:02Z","timestamp":1689644762000},"page":"99","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of the Law Enforcement Duty Belt on Muscle Activation during Hip Hinging Movements in Young, Healthy Adults"],"prefix":"10.3390","volume":"8","author":[{"given":"James W.","family":"Kearney","sequence":"first","affiliation":[{"name":"Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Manassas, VA 20110, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Megan N. Sax van der","family":"Weyden","sequence":"additional","affiliation":[{"name":"Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Manassas, VA 20110, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nelson","family":"Cortes","sequence":"additional","affiliation":[{"name":"School of Sport, Rehabilitation, and Exercise Science, University of Essex, Colchester CO4 3WA, UK"},{"name":"Department of Bioengineering, George Mason University, Fairfax, VA 22030, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7273-8774","authenticated-orcid":false,"given":"Orlando","family":"Fernandes","sequence":"additional","affiliation":[{"name":"Sport and Health Department, School of Science and Technology, University of \u00c9vora, 7004-516 \u00c9vora, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8579-0480","authenticated-orcid":false,"given":"Joel R.","family":"Martin","sequence":"additional","affiliation":[{"name":"Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Manassas, VA 20110, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,17]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"61","DOI":"10.12697\/akut.2015.21.06","article-title":"Physical Fitness Characteristics of a Front-Line Firefighter Population","volume":"21","author":"Antolini","year":"2015","journal-title":"Acta Kinesiol. 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