{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T22:33:02Z","timestamp":1790116382089,"version":"4.0.1"},"reference-count":34,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T00:00:00Z","timestamp":1737936000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100005089","name":"Natural Science Foundation of Beijing Municipality","doi-asserted-by":"publisher","award":["L242161"],"award-info":[{"award-number":["L242161"]}],"id":[{"id":"10.13039\/501100005089","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2025,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Patellofemoral pain syndrome (PFPS) is a common knee issue, and hip joint function significantly affects knee health. Gluteus activation exercises are a promising treatment for PFPS. This study aims to investigate the impact of gluteal muscle activation exercises on the muscle involvement and movement patterns of young male patients with PFPS.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Our study was a randomized controlled clinical trial study from June 2020 to December 2021, included 18 young male patients with PFPS, randomly divided into two groups: the gluteus activation group (GAG) and control group (CON), with nine cases in each group. The GAG underwent gluteal muscle activation exercises for 40\u2009min per session, three times per week, for 6\u2009weeks; the CON received no intervention. At baseline and after 6\u2009weeks, the integrated electromyography (IEMG), contribution rates (CRs), and activation times (ATs) of the gluteus maximus (GM), vastus medialis (VM), rectus femoris (RF), vastus lateralis (VL), biceps femoris (BF), and semitendinosus (ST) muscles of the affected lower limb during stair\u2010climbing exercise were assessed. Additionally, the explosive power (EP) of the lower limbs and the visual analog scale (VAS) pain value of the knee joint were evaluated. Paired sample\n                      <jats:italic>t<\/jats:italic>\n                      \u2010tests and independent sample\n                      <jats:italic>t<\/jats:italic>\n                      \u2010tests were used to compare the differences within and between groups.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      After 6\u2009weeks, the GAG showed a significant increase in the IEMG of GM by 118\u2009\u00b1\u200967.09\u2009\u03bcVs compared to CON (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05), and an increase in the CR of the GM by 6.75% (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). Additionally, the AT of the GM and BF was significantly reduced (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05), and the lower limb EP increased by 14.66% compared to the CON (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). Concurrently, there was a very significant reduction in the knee VAS pain score (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.01). The CON exhibited no significant changes in the EMG indices of the lower limbs, EP, and VAS before and after the 6\u2009weeks (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&gt;\u20090.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>A 6\u2010week gluteal muscle activation training program for patients with PFPS can adjust and optimize the IEMG, CR, and firing order of the lower limb muscle groups, enhance EP, and alleviate pain.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/os.14320","type":"journal-article","created":{"date-parts":[[2025,1,27]],"date-time":"2025-01-27T21:26:47Z","timestamp":1738013207000},"page":"744-752","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["A Study on the Effects of Gluteal Muscle Activation on the Electromyography of Lower Limb Muscles in Young Male Patients With Patellofemoral Pain Syndrome"],"prefix":"10.1111","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4591-807X","authenticated-orcid":false,"given":"Wu","family":"Yue","sequence":"first","affiliation":[{"name":"Tianjin Key Laboratory of Exercise Physiology and Sports Medicine Institute of Sport, Exercise &amp; Health, Tianjin University of Sport  Tianjin China"},{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University  Beijing China"},{"name":"Beijing Key Laboratory of Sports Injuries  Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ren","family":"Shuang","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University  Beijing China"},{"name":"Beijing Key Laboratory of Sports Injuries  Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huang","family":"Hongshi","sequence":"additional","affiliation":[{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University  Beijing China"},{"name":"Beijing Key Laboratory of Sports Injuries  Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8909-2022","authenticated-orcid":false,"given":"Ao","family":"Yingfang","sequence":"additional","affiliation":[{"name":"Tianjin Key Laboratory of Exercise Physiology and Sports Medicine Institute of Sport, Exercise &amp; Health, Tianjin University of Sport  Tianjin China"},{"name":"Department of Sports Medicine Peking University Third Hospital, Institute of Sports Medicine of Peking University  Beijing China"},{"name":"Beijing Key Laboratory of Sports Injuries  Beijing China"},{"name":"Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gou","family":"Bo","sequence":"additional","affiliation":[{"name":"School of Exercise and Health Sciences, Xi'an Physical Education University  Xian China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,1,27]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2023.19675"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102015\u2010095607"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.csm.2014.12.011"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0190892"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.4102\/sajp.v74i1.452"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports\u20102017\u2010098890"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546519889347"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40279\u2010022\u201001781\u20101"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.2003.33.11.639"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598\u2010024\u201078074\u20102"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.2015.5091"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.3389\/fphys.2021.664071"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1186\/s40798\u2010023\u201000671\u20108"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.2519\/jospt.2012.3987"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0105246"},{"key":"e_1_2_9_17_1","first-page":"88","article-title":"Patellofemoral Pain Syndrome","volume":"99","author":"Gaitonde D. 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