{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T16:58:54Z","timestamp":1770051534037,"version":"3.49.0"},"reference-count":40,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T00:00:00Z","timestamp":1769990400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Public Health"],"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The purpose of this study was to investigate the relationship between bilateral lower extremity explosive strength asymmetry and non-contact low back injuries in mine rescue workers, a specialized occupational group.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A single-leg countermovement jump (SLCMJ) test was performed on 101 rescue members who had participated in frontline rescue missions, using a force platform. The collected force platform data were used to calculate lower limb asymmetry. Injury incidence was measured by recording all non-contact low back injuries occurring during routine training or rescue operations over a 12-month follow-up period. Jump metrics (including eccentric peak force, vertical velocity at takeoff, peak takeoff acceleration, and takeoff peak force) associated with non-contact low back injuries were identified through Poisson regression analysis, and the optimal threshold for predicting injuries was determined using the receiver operating characteristic (ROC) curve.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Bilateral takeoff peak force asymmetry significantly increased the risk of non-contact low back injury. Each 1% increase in asymmetry raised the injury risk by 18.5% (RR\u202f=\u202f1.185, 95% CI: 1.091\u20131.288,\n                      <jats:italic>p<\/jats:italic>\n                      \u202f&amp;lt;\u202f0.001), equivalent to an absolute increase of 3.2% (RD\u202f=\u202f0.032, 95% CI: 0.009\u20130.056). Using the optimal threshold of 7.05% for risk stratification, rescue workers in the high-risk group had a 3.6 times higher injury risk than the low-risk group (RR\u202f=\u202f3.64, 95% CI: 1.353\u20139.832,\n                      <jats:italic>p<\/jats:italic>\n                      \u202f=\u202f0.011), corresponding to an absolute risk difference of 24.1% (RD\u202f=\u202f0.241, 95% CI: 0.073\u20130.409).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The interlimb asymmetry measured during the single-leg countermovement jump can be used to predict the risk of non-contact low back injuries in mine rescue workers over a 12-month follow-up period. Particular emphasis should be placed on the interlimb asymmetry of takeoff peak force.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fpubh.2026.1740041","type":"journal-article","created":{"date-parts":[[2026,2,2]],"date-time":"2026-02-02T06:31:26Z","timestamp":1770013886000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Lower extremity bilateral explosive strength asymmetry predicts non-contact low back injuries in mine rescue workers: a prospective cohort study"],"prefix":"10.3389","volume":"14","author":[{"given":"Shuo","family":"Li","sequence":"first","affiliation":[{"name":"Department of Physical Education and Research, China University of Mining and Technology-Beijing","place":["Beijing, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sanjun","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Physical Education and Research, China University of Mining and Technology-Beijing","place":["Beijing, China"]},{"name":"Institute for Emergency Rescue Ergonomics and Protection, China University of Mining and Technology-Beijing","place":["Beijing, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yunchen","family":"Meng","sequence":"additional","affiliation":[{"name":"Department of Physical Education and Research, China University of Mining and Technology-Beijing","place":["Beijing, China"]},{"name":"Institute for Emergency Rescue Ergonomics and Protection, China University of Mining and Technology-Beijing","place":["Beijing, China"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2026,2,2]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"23259671231185586","DOI":"10.1177\/23259671231185586","article-title":"Predicting the risk of injuries through assessments of asymmetric lower limb functional performance: a prospective study of 415 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