{"id":13287,"date":"2025-05-28T15:32:18","date_gmt":"2025-05-28T20:32:18","guid":{"rendered":"https:\/\/prepstrengthcoach.com\/?p=13287"},"modified":"2025-05-28T15:34:08","modified_gmt":"2025-05-28T20:34:08","slug":"stop-x-protect-knees-by-improving-deceleration","status":"publish","type":"post","link":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/","title":{"rendered":"STOP-X: Protect Knees By Improving Deceleration"},"content":{"rendered":"\n<p class=\"\">Knee injuries\u2014especially ACL tears\u2014remain a persistent threat to athletes at all levels. While speed and strength dominate most training programs, injury reduction is a true mark of great coaching. STOP-X Training is a science-backed system designed to reduce knee injury risk by addressing movement patterns that put athletes in danger.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-what-is-stop-x\">What is STOP-X?<\/h3>\n\n\n\n<p class=\"\">STOP-X is a training system developed by the German Knee Society (DKG) to reduce the risk of ACL and other serious knee injuries. STOP-X, short for &#8220;stopping under external load,&#8221; focuses on teaching athletes how to control momentum, absorb force, and stop safely. It emphasizes the deceleration phase of movement\u2014whether stopping from a sprint, cutting to change directions, or landing from a jump.<\/p><div class=\"pscsite-billboard-ad-in-content\" style=\"text-align: center;\" id=\"pscsite-2811018911\"><div data-cfpa=\"12108\" data-cfpw=\"12108\" id=\"pscsite-2127340355\"><a data-bid=\"1\" data-no-instant=\"1\" href=\"https:\/\/prepstrengthcoach.com\/supplier-partner-connect\/12108\" rel=\"noopener\" class=\"notrack\" target=\"_blank\" aria-label=\"Speedster950x250Final5\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/01\/Speedster950x250Final5.gif?fit=950%2C250&#038;ssl=1\" alt=\"\"  width=\"950\" height=\"250\"   \/><\/a><\/div><script type=\"text\/javascript\">;new advadsCfpAd( 12108 );<\/script><\/div>\n\n\n\n<p class=\"\">STOP-X training typically involves external loads (like bands, cables, or sleds) paired with fast-paced movements that must be halted with control and intent. It is also used to correct knee valgus\u2014the inward, X-shaped collapse of the knees during dynamic movement, a key risk factor for injury. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-benefits-of-stop-x-training\">Benefits of STOP-X Training<\/h3>\n\n\n\n<p class=\"\">Since its introduction, the STOP-X program has been the subject of various studies assessing its effectiveness in improving knee alignment, balance, and neuromuscular control among athletes. Research has demonstrated that incorporating STOP-X exercises leads to significant reductions in knee valgus angles and enhancements in both static and dynamic balance, thereby decreasing the risk of ACL injuries.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Reduced Injury Risk<\/strong><br>Research shows STOP-X can reduce general knee injuries by up to 27% and ACL injuries by up to 51%.<\/li>\n\n\n\n<li class=\"\"><strong>Knee Valgus<\/strong><br>Correcting dynamic valgus is central to injury prevention. STOP-X helps athletes land, jump, and cut without letting the knees collapse inward.<\/li>\n\n\n\n<li class=\"\"><strong>Improved Neuromuscular Control<\/strong><br>Through consistent progression, athletes improve their ability to coordinate movement between joints and muscle groups\u2014leading to more stable, efficient motion.<\/li>\n\n\n\n<li class=\"\"><strong>Hip and Lower Body Strength<\/strong><br>The program prioritizes hip stabilization, glute activation, and quad\/hamstring balance\u2014all critical to knee alignment.<\/li>\n\n\n\n<li class=\"\"><strong>Balance and Coordination<\/strong><br>Core balance work builds proprioception, helping athletes stay in control during unexpected or reactive movements.<\/li>\n\n\n\n<li class=\"\"><strong>Change of direction efficiency<\/strong> <br>Improved balance means athletes are able to stop, start, and change direction faster.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-example-stop-x-exercises\">Example STOP-X Exercises<\/h3>\n\n\n\n<p class=\"\">STOP-X training fits nicely into warm-ups, off-season programs, or return-to-play protocols. Here are some examples of STOP-X exercises:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\"><strong>Banded Sprints to Sudden Stops<\/strong><br>Attach a light resistance band to the waist. Sprint forward and stop on cue. Focus on control and posture.<\/li>\n\n\n\n<li class=\"\"><strong>Deceleration Lunges with Load<\/strong><br>Step into a lunge while holding dumbbells or a barbell. Emphasize slowing down the descent and pausing at the bottom.<\/li>\n\n\n\n<li class=\"\"><strong>Eccentric Drop Landings<\/strong><br>Drop from a low box and land into a controlled squat position, absorbing force through the hips and knees.<\/li>\n\n\n\n<li class=\"\"><strong>Slideboard Lateral Stops<\/strong><br>Perform lateral shuffles or slides with the goal of braking quickly and returning to center.<\/li>\n\n\n\n<li class=\"\"><strong>Sled Push with Deceleration Zones<\/strong><br>Push a sled with speed, then decelerate into a controlled stop at a designated marker.<\/li>\n\n\n\n<li class=\"\"><strong>Hop and Holds<\/strong><br>Jump on one leg and hold after landing to improve single-leg stability.<\/li>\n\n\n\n<li class=\"\"><strong>Balance Training<\/strong><br>Single-leg stance drills, unstable surface work, or eyes-closed exercises.<\/li>\n\n\n\n<li class=\"\"><strong>Hip Stabilization<\/strong><br>Glute bridges, side-lying abductions, monster walks with bands, single-leg squats and step-downs.<\/li>\n\n\n\n<li class=\"\"><strong>Strength Training<\/strong><br>Bulgarian split squats, nordic hamstring curls, deadlifts and Romanian deadlifts.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\"><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-stop-x-in-high-school-strength-training\">STOP-X in High School Strength Training<\/h3>\n\n\n\n<p class=\"\">In high-speed sports, the ability to stop safely is just as important as the ability to go fast. Most injuries\u2014ACL tears, ankle sprains, muscle strains\u2014occur during uncontrolled deceleration. STOP-X training teaches athletes how to decelerate effectively, leading to more resilient, faster, and safer athletes.<\/p>\n\n\n\n<p class=\"\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-sources\">Sources<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Rostami, M., Sedaghati, P. &amp; Daneshmandi, H. The effectiveness of the STOP-X training program on the knee valgus angle and balance in female basketball players with dynamic knee valgus: a randomized controlled trial.\u00a0<em>BMC Sports Sci Med Rehabil<\/em>\u00a016, 52 (2024). <a href=\"https:\/\/doi.org\/10.1186\/s13102-024-00844-2\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1186\/s13102-024-00844-2<\/a><\/li>\n\n\n\n<li class=\"\">Hasani Chenari, R., Mohammad Ali Nasab Firouzjah, E. &amp; Roshani, S. The effect of Stop X exercises on balance, strength and range of motion of male adolescent football players with dynamic knee valgus. Sci Rep 15, 18213 (2025). <a href=\"https:\/\/doi.org\/10.1038\/s41598-025-00840-7\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/doi.org\/10.1038\/s41598-025-00840-7<\/a><\/li>\n<\/ul>\n<div class=\"pscsite-billboard-ad-end-of-content\" style=\"text-align: center;padding-top: 30px;\" id=\"pscsite-112524872\"><div data-cfpa=\"12108\" data-cfpw=\"12108\" id=\"pscsite-690625095\"><a data-bid=\"1\" data-no-instant=\"1\" href=\"https:\/\/prepstrengthcoach.com\/supplier-partner-connect\/12108\" rel=\"noopener\" class=\"notrack\" target=\"_blank\" aria-label=\"Speedster950x250Final5\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/01\/Speedster950x250Final5.gif?fit=950%2C250&#038;ssl=1\" alt=\"\"  width=\"950\" height=\"250\"   \/><\/a><\/div><script type=\"text\/javascript\">;new advadsCfpAd( 12108 );<\/script><\/div>","protected":false},"excerpt":{"rendered":"<p>Developed by the German Knee Society, STOP-X is a research-backed system designed to reduce knee injuries\u2014particularly ACL tears\u2014by targeting dynamic knee valgus and improving neuromuscular control. <\/p>\n","protected":false},"author":2,"featured_media":13300,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[29,20,361,8,25,15,262,34],"tags":[],"class_list":["post-13287","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-best-practices","category-drills","category-exercises","category-articles","category-plyometrics","category-programming","category-safety","category-warm-ups","et-has-post-format-content","et_post_format-et-post-format-standard"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>STOP-X: Protect Knees By Improving Deceleration | Prep Strength Coach<\/title>\n<meta name=\"description\" content=\"Developed by the German Knee Society, STOP-X is a research-backed system designed to reduce knee injuries\u2014particularly ACL tears\u2014by targeting dynamic knee valgus and improving neuromuscular control.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"STOP-X: Protect Knees By Improving Deceleration\" \/>\n<meta property=\"og:description\" content=\"Developed by the German Knee Society, STOP-X is a research-backed system designed to reduce knee injuries\u2014particularly ACL tears\u2014by targeting dynamic knee valgus and improving neuromuscular control.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/\" \/>\n<meta property=\"og:site_name\" content=\"Prep Strength Coach\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=100084500187665\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-28T20:32:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-28T20:34:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1707\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Paul Sapienza\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@prepstrength\" \/>\n<meta name=\"twitter:site\" content=\"@prepstrength\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Paul Sapienza\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/\"},\"author\":{\"name\":\"Paul Sapienza\",\"@id\":\"https:\/\/prepstrengthcoach.com\/#\/schema\/person\/c73cefa67256c9dd12dfed51391d4219\"},\"headline\":\"STOP-X: Protect Knees By Improving Deceleration\",\"datePublished\":\"2025-05-28T20:32:18+00:00\",\"dateModified\":\"2025-05-28T20:34:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/\"},\"wordCount\":676,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1\",\"articleSection\":[\"Best Practices\",\"Drills\",\"Exercises\",\"Featured Articles\",\"Plyometrics\",\"Programming\",\"Safety\",\"Warm Ups\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/\",\"url\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/\",\"name\":\"STOP-X: Protect Knees By Improving Deceleration | Prep Strength Coach\",\"isPartOf\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1\",\"datePublished\":\"2025-05-28T20:32:18+00:00\",\"dateModified\":\"2025-05-28T20:34:08+00:00\",\"description\":\"Developed by the German Knee Society, STOP-X is a research-backed system designed to reduce knee injuries\u2014particularly ACL tears\u2014by targeting dynamic knee valgus and improving neuromuscular control.\",\"breadcrumb\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#primaryimage\",\"url\":\"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1\",\"contentUrl\":\"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1\",\"width\":2560,\"height\":1707},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\ud83c\udfe0\",\"item\":\"https:\/\/prepstrengthcoach.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"STOP-X: Protect Knees By Improving Deceleration\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/prepstrengthcoach.com\/#website\",\"url\":\"https:\/\/prepstrengthcoach.com\/\",\"name\":\"Prep Strength Coach\",\"description\":\"Best practices, coaching philosophy and product info for the high school strength and conditioning coach.\",\"publisher\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/prepstrengthcoach.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/prepstrengthcoach.com\/#organization\",\"name\":\"Prep Strength Coach\",\"alternateName\":\"Three Cycle Media\",\"url\":\"https:\/\/prepstrengthcoach.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/prepstrengthcoach.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2022\/09\/prep-strength-coach-social.jpg?fit=1200%2C630&ssl=1\",\"contentUrl\":\"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2022\/09\/prep-strength-coach-social.jpg?fit=1200%2C630&ssl=1\",\"width\":1200,\"height\":630,\"caption\":\"Prep Strength Coach\"},\"image\":{\"@id\":\"https:\/\/prepstrengthcoach.com\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/profile.php?id=100084500187665\",\"https:\/\/x.com\/prepstrength\",\"https:\/\/www.facebook.com\/footballcoachdaily\",\"https:\/\/www.facebook.com\/footballproductreview\",\"https:\/\/twitter.com\/coachingstrong\",\"https:\/\/twitter.com\/strengthcoach4u\",\"https:\/\/twitter.com\/3cyclestrength\",\"https:\/\/www.facebook.com\/threecyclestrength\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/prepstrengthcoach.com\/#\/schema\/person\/c73cefa67256c9dd12dfed51391d4219\",\"name\":\"Paul Sapienza\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/prepstrengthcoach.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/541e7783e3ba271605d1d2eccad84810d53f658e0dd711a4e574f01a7b121b18?s=96&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/541e7783e3ba271605d1d2eccad84810d53f658e0dd711a4e574f01a7b121b18?s=96&r=g\",\"caption\":\"Paul Sapienza\"},\"description\":\"Paul Sapienza is an editor and producer with Prep Strength Coach and Three Cycle Media. As a graduate of the Computer Science program at the University of Wisconsin, Paul explores the intersection of content creation, video production, web development and application development within Three Cycle Media. He continually produces compelling content and other digital media for high school strength coaches and strives to learn more about their profession on a daily basis. He can be reached at psapienza@threecyclemedia.com.\",\"sameAs\":[\"https:\/\/www.prepstrengthcoach.com\"],\"url\":\"https:\/\/prepstrengthcoach.com\/author\/psapienza\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"STOP-X: Protect Knees By Improving Deceleration | Prep Strength Coach","description":"Developed by the German Knee Society, STOP-X is a research-backed system designed to reduce knee injuries\u2014particularly ACL tears\u2014by targeting dynamic knee valgus and improving neuromuscular control.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/","og_locale":"en_US","og_type":"article","og_title":"STOP-X: Protect Knees By Improving Deceleration","og_description":"Developed by the German Knee Society, STOP-X is a research-backed system designed to reduce knee injuries\u2014particularly ACL tears\u2014by targeting dynamic knee valgus and improving neuromuscular control.","og_url":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/","og_site_name":"Prep Strength Coach","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=100084500187665","article_published_time":"2025-05-28T20:32:18+00:00","article_modified_time":"2025-05-28T20:34:08+00:00","og_image":[{"width":2560,"height":1707,"url":"https:\/\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg","type":"image\/jpeg"}],"author":"Paul Sapienza","twitter_card":"summary_large_image","twitter_creator":"@prepstrength","twitter_site":"@prepstrength","twitter_misc":{"Written by":"Paul Sapienza","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#article","isPartOf":{"@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/"},"author":{"name":"Paul Sapienza","@id":"https:\/\/prepstrengthcoach.com\/#\/schema\/person\/c73cefa67256c9dd12dfed51391d4219"},"headline":"STOP-X: Protect Knees By Improving Deceleration","datePublished":"2025-05-28T20:32:18+00:00","dateModified":"2025-05-28T20:34:08+00:00","mainEntityOfPage":{"@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/"},"wordCount":676,"commentCount":0,"publisher":{"@id":"https:\/\/prepstrengthcoach.com\/#organization"},"image":{"@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1","articleSection":["Best Practices","Drills","Exercises","Featured Articles","Plyometrics","Programming","Safety","Warm Ups"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/","url":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/","name":"STOP-X: Protect Knees By Improving Deceleration | Prep Strength Coach","isPartOf":{"@id":"https:\/\/prepstrengthcoach.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#primaryimage"},"image":{"@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1","datePublished":"2025-05-28T20:32:18+00:00","dateModified":"2025-05-28T20:34:08+00:00","description":"Developed by the German Knee Society, STOP-X is a research-backed system designed to reduce knee injuries\u2014particularly ACL tears\u2014by targeting dynamic knee valgus and improving neuromuscular control.","breadcrumb":{"@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#primaryimage","url":"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1","contentUrl":"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1","width":2560,"height":1707},{"@type":"BreadcrumbList","@id":"https:\/\/prepstrengthcoach.com\/articles\/stop-x-protect-knees-by-improving-deceleration\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\ud83c\udfe0","item":"https:\/\/prepstrengthcoach.com\/"},{"@type":"ListItem","position":2,"name":"STOP-X: Protect Knees By Improving Deceleration"}]},{"@type":"WebSite","@id":"https:\/\/prepstrengthcoach.com\/#website","url":"https:\/\/prepstrengthcoach.com\/","name":"Prep Strength Coach","description":"Best practices, coaching philosophy and product info for the high school strength and conditioning coach.","publisher":{"@id":"https:\/\/prepstrengthcoach.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/prepstrengthcoach.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/prepstrengthcoach.com\/#organization","name":"Prep Strength Coach","alternateName":"Three Cycle Media","url":"https:\/\/prepstrengthcoach.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/prepstrengthcoach.com\/#\/schema\/logo\/image\/","url":"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2022\/09\/prep-strength-coach-social.jpg?fit=1200%2C630&ssl=1","contentUrl":"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2022\/09\/prep-strength-coach-social.jpg?fit=1200%2C630&ssl=1","width":1200,"height":630,"caption":"Prep Strength Coach"},"image":{"@id":"https:\/\/prepstrengthcoach.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=100084500187665","https:\/\/x.com\/prepstrength","https:\/\/www.facebook.com\/footballcoachdaily","https:\/\/www.facebook.com\/footballproductreview","https:\/\/twitter.com\/coachingstrong","https:\/\/twitter.com\/strengthcoach4u","https:\/\/twitter.com\/3cyclestrength","https:\/\/www.facebook.com\/threecyclestrength"]},{"@type":"Person","@id":"https:\/\/prepstrengthcoach.com\/#\/schema\/person\/c73cefa67256c9dd12dfed51391d4219","name":"Paul Sapienza","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/prepstrengthcoach.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/541e7783e3ba271605d1d2eccad84810d53f658e0dd711a4e574f01a7b121b18?s=96&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/541e7783e3ba271605d1d2eccad84810d53f658e0dd711a4e574f01a7b121b18?s=96&r=g","caption":"Paul Sapienza"},"description":"Paul Sapienza is an editor and producer with Prep Strength Coach and Three Cycle Media. As a graduate of the Computer Science program at the University of Wisconsin, Paul explores the intersection of content creation, video production, web development and application development within Three Cycle Media. He continually produces compelling content and other digital media for high school strength coaches and strives to learn more about their profession on a daily basis. He can be reached at psapienza@threecyclemedia.com.","sameAs":["https:\/\/www.prepstrengthcoach.com"],"url":"https:\/\/prepstrengthcoach.com\/author\/psapienza\/"}]}},"jetpack_featured_media_url":"https:\/\/i0.wp.com\/prepstrengthcoach.com\/wp-content\/uploads\/2025\/05\/pexels-mart-production-8033009-scaled.jpg?fit=2560%2C1707&quality=89&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/posts\/13287","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/comments?post=13287"}],"version-history":[{"count":5,"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/posts\/13287\/revisions"}],"predecessor-version":[{"id":13338,"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/posts\/13287\/revisions\/13338"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/media\/13300"}],"wp:attachment":[{"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/media?parent=13287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/categories?post=13287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prepstrengthcoach.com\/wp-json\/wp\/v2\/tags?post=13287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}