{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,2]],"date-time":"2025-08-02T16:26:02Z","timestamp":1754151962154,"version":"3.41.2"},"reference-count":28,"publisher":"Termedia Sp. z.o.o.","license":[{"start":{"date-parts":[[2025,7,21]],"date-time":"2025-07-21T00:00:00Z","timestamp":1753056000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,7,21]],"date-time":"2025-07-21T00:00:00Z","timestamp":1753056000000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,7,21]],"date-time":"2025-07-21T00:00:00Z","timestamp":1753056000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Human Kinetics"],"abstract":"<jats:p>We sought to compare the spine and lower limb alignment using inertial measurement units (IMUs) in athletes with and without low back pain (LBP). Fifty junior gymnasts were divided into two groups: those with (n = 12) and without LBP (n = 38). IMU sensors were placed throughout the body. Participants were instructed to perform back-bending. The movements of shoulder, thoracolumbar, lumbosacral, hip, and knee joints were assessed. Additionally, differences between thoracolumbar and lumbosacral joints were evaluated. In the sagittal plane, lumbosacral extension was greater in the no-LBP group (37.7\u00b0 \u00b1 13.6\u00b0) than in the LBP group (24.6\u00b0 \u00b1 20.4\u00b0, p &lt; 0.05, d = 0.85). Thoracolumbar extension was similar in the no-LBP (74.1\u00b0 \u00b1 14.4\u00b0) and LBP groups (84.5\u00b0 \u00b1 20.4\u00b0, p &gt; 0.05, d = 0.66). The difference between thoracolumbar and lumbosacral extension was 36.4\u00b0 \u00b1 22.4\u00b0 in the no-LBP group and 59.8\u00b0 \u00b1 34.2\u00b0 in the LBP group, which was statistically significant (p &lt; 0.05, d = 0.41). Hip extension was greater in the no-LBP group (10.7\u00b0 \u00b1 7.1\u00b0) than the LBP group (5.5\u00b0 \u00b1 7.6\u00b0, p &lt; 0.05, d = 0.73). In the frontal plane, diminished lumbosacral joint lateral flexion was observed in the no-LBP group (5.8\u00b0 \u00b1 4.6\u00b0) compared to the LBP group (11.1\u00b0 \u00b1 8.3\u00b0, p &lt; 0.05, d = 0.45). Junior gymnasts with LBP demonstrated reduced ranges of motion in hip and lumbosacral extension, along with further extension of the thoracolumbar beyond the lumbosacral joints while back-bending. Additionally, lateral flexion was observed at lumbosacral joints.<\/jats:p>","DOI":"10.5114\/jhk\/196318","type":"journal-article","created":{"date-parts":[[2025,7,21]],"date-time":"2025-07-21T09:41:37Z","timestamp":1753090897000},"source":"Crossref","is-referenced-by-count":0,"title":["The Impact of Lower Back Pain on Hip Extension and Lumbosacral Lateral Flexion in Junior Gymnasts \nduring Back-Bending"],"prefix":"10.5114","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6140-3178","authenticated-orcid":true,"given":"Kazuaki","family":"Kinoshita","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuichi","family":"Hoshino","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naoko","family":"Yokota","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masayuki","family":"Fukuda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mika","family":"Hirata","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuichiro","family":"Nishizawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"3061","published-online":{"date-parts":[[2025,7,21]]},"reference":[{"key":"ref-1479658","doi-asserted-by":"publisher","DOI":"10.3390\/healthcare10050890"},{"key":"ref-1479659","doi-asserted-by":"publisher","DOI":"10.1123\/pes.15.4.373"},{"key":"ref-1479660","unstructured":"Bernstein, R. M., & Cozen, H. (2007). Evaluation of back pain in children and adolescents. American Family Physician, 76(11), 1669\u20131676."},{"key":"ref-1479661","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-006-0083-7"},{"key":"ref-1479662","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200402000-00027"},{"key":"ref-1479663","unstructured":"Bruggemann, G. (2010). Neuromechanical load of the biological tissue and injury in gymnastics. In XXVIII International Symposium of Biomechanics in Sports (pp. 108\u2013111)."},{"key":"ref-1479664","doi-asserted-by":"publisher","DOI":"10.1080\/14763141.2022.2117642"},{"key":"ref-1479665","doi-asserted-by":"crossref","unstructured":"Ciullo, J. V., & Jackson, D. W. (1985). Pars interarticularis stress reaction, spondylolysis, and spondylolisthesis in gymnasts. Clinical Sports Medicine, 4(1), 95\u2013110.","DOI":"10.1016\/S0278-5919(20)31264-3"},{"key":"ref-1479666","unstructured":"Cupisti, A., D\u2019Allessandro, C., Evangelisti, I., Piazza, M., Galetta, F., & Morelli, E. (2004). Low back pain in competitive rhythmic gymnasts. Journal of Sports Medicine and Physical Fitness, 44(1), 49\u201353."},{"key":"ref-1479667","doi-asserted-by":"crossref","unstructured":"Curtis, C., & D\u2019Hemecourt, P. (2007). Diagnosis and management of back pain in adolescents. Adolescent Medicine: State of the Art Reviews, 18(1), 140\u2013164.","DOI":"10.1542\/9781581104066-diagnosis"},{"key":"ref-1479668","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph18105460"},{"key":"ref-1479669","doi-asserted-by":"publisher","DOI":"10.5114\/jhk\/166581"},{"key":"ref-1479670","doi-asserted-by":"publisher","DOI":"10.1249\/JSR.0000000000000536"},{"key":"ref-1479671","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-021-01443-8"},{"key":"ref-1479672","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcm.2016.02.012"},{"key":"ref-1479673","doi-asserted-by":"publisher","DOI":"10.1136\/bjsm.2002.001990"},{"key":"ref-1479674","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-013-0058-5"},{"key":"ref-1479675","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-198908000-00013"},{"key":"ref-1479676","unstructured":"Piazza, M., Di Cagno, A., Cupisti, A., Panicucci, E., & Santoro, G. (2009). Prevalence of low back pain in former rhythmic gymnasts. Journal of Sports Medicine and Physical Fitness, 49(3), 297\u2013300."},{"key":"ref-1479677","unstructured":"Roetenberg, D., Luinge, H., & Slycke, P. (2013). Xsens MVN: Full 6DOF human motion tracking using miniature inertial sensors. XSENS Technologies, 3, 1\u20139."},{"key":"ref-1479678","doi-asserted-by":"publisher","DOI":"10.1007\/s00508-014-0623-4"},{"key":"ref-1479679","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-015-0424-6"},{"key":"ref-1479680","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph18168369"},{"key":"ref-1479681","doi-asserted-by":"publisher","DOI":"10.1177\/036354659001800216"},{"key":"ref-1479682","doi-asserted-by":"publisher","DOI":"10.3390\/s18071980"},{"key":"ref-1479683","doi-asserted-by":"publisher","DOI":"10.5114\/jhk\/159460"},{"key":"ref-1479684","doi-asserted-by":"publisher","DOI":"10.1177\/03635465000280040801"},{"key":"ref-1479685","doi-asserted-by":"publisher","DOI":"10.1186\/s40798-021-00309-y"}],"container-title":["Journal of Human Kinetics"],"original-title":[],"link":[{"URL":"https:\/\/jhk.termedia.pl\/pdf-196318-127082","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/jhk.termedia.pl\/pdf-196318-127082","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,7,21]],"date-time":"2025-07-21T09:41:40Z","timestamp":1753090900000},"score":1,"resource":{"primary":{"URL":"https:\/\/jhk.termedia.pl\/The-Impact-of-Lower-Back-Pain-on-Hip-Extension-and-Lumbosacral-Lateral-Flexion-in,196318,0,2.html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,7,21]]},"references-count":28,"alternative-id":["196318"],"URL":"https:\/\/doi.org\/10.5114\/jhk\/196318","relation":{},"ISSN":["1640-5544","1899-7562"],"issn-type":[{"type":"print","value":"1640-5544"},{"type":"electronic","value":"1899-7562"}],"subject":[],"published":{"date-parts":[[2025,7,21]]}}}