{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T18:45:30Z","timestamp":1784141130169,"version":"3.55.0"},"reference-count":30,"publisher":"Public Library of Science (PLoS)","issue":"10","license":[{"start":{"date-parts":[[2021,10,19]],"date-time":"2021-10-19T00:00:00Z","timestamp":1634601600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004530","name":"Universiti Putra Malaysia","doi-asserted-by":"publisher","award":["9616000"],"award-info":[{"award-number":["9616000"]}],"id":[{"id":"10.13039\/501100004530","id-type":"DOI","asserted-by":"publisher"}]},{"name":"MInistry of Education","award":["(FRGS\/1\/2015\/SKK06\/UPM\/02\/2)"],"award-info":[{"award-number":["(FRGS\/1\/2015\/SKK06\/UPM\/02\/2)"]}]},{"name":"Selangor Government","award":["6300260"],"award-info":[{"award-number":["6300260"]}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>Traffic police riders are exposed to prolonged static postures causing significant angular deviation of the musculoskeletal, including the lumbar angle (L1-L5). This postural alteration contributes to awkward posture, musculoskeletal disorders and spinal injury, especially in the lower back area, as it is one of the most severe modern diseases nowadays. Thus, the study aimed to evaluate the effect of lumbar support with a built-in massager system on spinal angle profiles among traffic police riders. A randomised controlled trial (pre-testpost-test control design) was used to assess spinal angle pattern while riding the high-powered motorcycle for 20 minutes. Twenty-four traffic police riders were randomly selected to participate and 12 riders were assigned to the control group and 12 riders to the experimental group. The pre-test and post-test were conducted at a one-week interval. Each participant was required to wear a TruPosture Smart Shirt (to monitor spinal posture). The TruPosture Apps recorded the spinal angle pattern. The data indicated that the police riders using motorcycle seat with lumbar support and built-in massager system showed a huge improvement in maintaining posture which only involves slight spinal angle deviation changes from the spinal reference angle throughout the 20 minutes ride. The data collected then were analysed using the Mann-Whitney test and Wilcoxon signed-ranked test to verify a statistically significant difference between and within the control and experimental groups. There were significant differences in all sensors between the control group and experimental groups (p&lt;0.05) and within the experimental group. According to the findings, it can be said that the ergonomic intervention prototype (lumbar support with built-in massager system) successfully helps to maintain and improve the natural curve of the spinal posture. This indirectly would reduce the risk of developing musculoskeletal disorders and spinal injury among traffic police riders.<\/jats:p>","DOI":"10.1371\/journal.pone.0258796","type":"journal-article","created":{"date-parts":[[2021,10,19]],"date-time":"2021-10-19T19:29:02Z","timestamp":1634671742000},"page":"e0258796","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":8,"title":["Effectiveness of lumbar support with built-in massager system on spinal angle profiles among high-powered traffic police motorcycle riders: A randomised controlled trial"],"prefix":"10.1371","volume":"16","author":[{"given":"Nur Athirah Diyana","family":"Mohammad Yusof","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9488-9335","authenticated-orcid":true,"given":"Karmegam","family":"Karupiah","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shamsul Bahri","family":"Mohd Tamrin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irniza","family":"Rasdi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vivien","family":"How","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sivasankar","family":"Sambasivam","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Putri Anis Syahira","family":"Mohamad Jamil","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kulanthayan","family":"K. 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Association between occupational and non-occupational risk to work-related musculoskeletal disorders among traffic police riders (Doctoral dissertation, Master\u2019s thesis]. Universiti Putra Malaysia)."},{"issue":"12","key":"pone.0258796.ref015","doi-asserted-by":"crossref","first-page":"e0208900","DOI":"10.1371\/journal.pone.0208900","article-title":"Assessment of the ergonomic risk from saddle and conventional seats in dentistry: A systematic review and meta-analysis","volume":"13","author":"GR Gouv\u00eaa","year":"2018","journal-title":"PloS one"},{"issue":"6","key":"pone.0258796.ref016","doi-asserted-by":"crossref","first-page":"755","DOI":"10.1016\/j.apergo.2006.11.001","article-title":"Effects of backrest design on biomechanics and comfort during seated work","volume":"38","author":"SM Carcone","year":"2007","journal-title":"Applied Ergonomics"},{"issue":"1","key":"pone.0258796.ref017","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s12877-019-1096-0","article-title":"Changes of upright body posture in the sagittal plane of men and women occurring with aging\u2013a cross sectional study","volume":"19","author":"H Gong","year":"2019","journal-title":"BMC geriatrics"},{"issue":"1","key":"pone.0258796.ref018","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1080\/10803548.2000.11076447","article-title":"Low back muscle activity in an automobile seat with a lumbar massage system","volume":"6","author":"M Kolich","year":"2000","journal-title":"International journal of occupational safety and ergonomics"},{"issue":"2","key":"pone.0258796.ref019","first-page":"121","article-title":"Evaluation of car seat using reliable and valid vehicle seat discomfort survey","volume":"8","author":"BM Deros","year":"2009","journal-title":"Industrial Engineering and Management Systems"},{"key":"pone.0258796.ref020","doi-asserted-by":"crossref","unstructured":"Voinea GD, Butnariu S. Wearability assessment of an equipment for spine posture monitoring. In2017 E-Health and Bioengineering Conference (EHB) 2017 Jun 22 (pp. 25\u201328). 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Muscular Activities Measurements of Forward Lean and Upright Sitting Motorcycling Postures via Surface Electromyography (sEMG). InMATEC Web of Conferences 2017 (Vol. 135, p. 00046). EDP Sciences.","DOI":"10.1051\/matecconf\/201713500046"},{"issue":"2","key":"pone.0258796.ref025","doi-asserted-by":"crossref","first-page":"e88482","DOI":"10.1371\/journal.pone.0088482","article-title":"Effect of seated trunk posture on eye blink startle and subjective experience: comparing flexion, neutral upright posture, and extension of spine","volume":"9","author":"E Ceunen","year":"2014","journal-title":"PloS one"},{"issue":"6","key":"pone.0258796.ref026","doi-asserted-by":"crossref","first-page":"7006350020p1","DOI":"10.5014\/ajot.2016.020743","article-title":"Comparison of Spinal Angles in a Typing Task on a Laptop and a Desktop Computer: A Preliminary Study","volume":"70","author":"H Alyami","year":"2016","journal-title":"American Journal of Occupational Therapy"},{"issue":"27","key":"pone.0258796.ref027","article-title":"The effectiveness of new model of motorcycle seat with built-in lumbar support","volume":"77","author":"UK Shafiei","year":"2015","journal-title":"Jurnal Teknologi"},{"issue":"1","key":"pone.0258796.ref028","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/1472-6882-2-9","article-title":"The effect of massage on localized lumbar muscle fatigue","volume":"2","author":"TH Tanaka","year":"2002","journal-title":"BMC complementary and alternative medicine"},{"issue":"5","key":"pone.0258796.ref029","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1093\/occmed\/kqh065","article-title":"An update of a systematic review of controlled clinical trials on the primary prevention of back pain at the workplace","volume":"54","author":"MN Van Poppel","year":"2004","journal-title":"Occupational Medicine"},{"issue":"2","key":"pone.0258796.ref030","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1016\/j.jmpt.2010.12.002","article-title":"The effect of a lightweight massage system in a car seat on comfort and electromyogram","volume":"34","author":"M Franz","year":"2011","journal-title":"Journal of manipulative and physiological therapeutics"}],"container-title":["PLOS ONE"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0258796","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,10,19]],"date-time":"2021-10-19T19:34:07Z","timestamp":1634672047000},"score":1,"resource":{"primary":{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0258796"}},"subtitle":[],"editor":[{"given":"Ahmed Mancy","family":"Mosa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2021,10,19]]},"references-count":30,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2021,10,19]]}},"URL":"https:\/\/doi.org\/10.1371\/journal.pone.0258796","relation":{},"ISSN":["1932-6203"],"issn-type":[{"value":"1932-6203","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,10,19]]}}}