{"id":8109,"date":"2025-09-08T09:54:53","date_gmt":"2025-09-08T09:54:53","guid":{"rendered":"https:\/\/www.ultrax.ai\/?p=8109"},"modified":"2026-03-11T14:43:14","modified_gmt":"2026-03-11T14:43:14","slug":"using-vald-technology-in-football-teams-part-4-nordbord","status":"publish","type":"post","link":"https:\/\/www.ultrax.ai\/hr\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/","title":{"rendered":"Using VALD Technology in Football Teams &#8211; Part 4 &#8211; NordBord\u00a0"},"content":{"rendered":"<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Using VALD Technology in Football Teams - Part 4 - NordBord\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/OWU_xjh3Ngo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>In the past three blogs, we explored the role of VALD technology in football, from jumping metrics to return-to-sport testing. Now, it&#8217;s time to shift the spotlight to one of the most talked-about muscle groups in the game: the hamstrings. <\/p>\n\n\n\n<p>We&#8217;ve all read the literature. The connection between high-speed running, sprinting actions, and hamstring injuries is well documented. In elite football, hamstring strains are among the most common non-contact injuries, often occurring during acceleration, max sprinting, or late-game fatigue. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">But here\u2019s the twist\u2014have you ever tested your own backyard? <\/h4>\n\n\n\n<p>We did. Across three different football academies, we collected internal injury data to better understand what\u2019s really happening. The results were surprising: in two of the youth clubs, quadriceps injuries were actually more frequent than hamstring injuries. Only one club followed the expected pattern, with hamstring issues leading the list. <\/p>\n\n\n\n<p>We collect the data with Ultrax software for the whole period. If you are interested what Ultrax can do, check it out here on the link:<a href=\"https:\/\/www.ultrax.ai\/hr\/science-hub\/\" target=\"_blank\" rel=\"noreferrer noopener\"> <\/a><a href=\"https:\/\/www.ultrax.ai\/hr\/science-hub\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.ultrax.ai\/science-hub\/<\/a>. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"904\" height=\"600\" src=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.59.41.png\" alt=\"\" class=\"wp-image-8118\" srcset=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.59.41.png 904w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.59.41-300x199.png 300w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.59.41-768x510.png 768w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.59.41-18x12.png 18w\" sizes=\"(max-width: 904px) 100vw, 904px\" \/><figcaption class=\"wp-element-caption\">Ultrax Medical Module<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">So, what does this mean? <\/h4>\n\n\n\n<p>While we shouldn\u2019t ignore the hamstrings, we also can\u2019t afford to follow the literature blindly without testing and understanding our own context. However, one thing remains clear\u2014we need to assess hamstring strength, particularly eccentric strength, and build robust training protocols to mitigate risk and improve performance. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Eccentric Strength: The Bigger Picture<\/strong> <\/h2>\n\n\n\n<p>When we talk about eccentric loading in football, it\u2019s not just about Nordics or hamstrings. Eccentric strength is involved in nearly every high-intensity action: sprinting, braking, changing direction, kicking, and landing. These actions expose the body to forces up to 6\u20138 times bodyweight. The ability to control and absorb (produce :D) those forces is critical\u2014not just for performance, but for injury prevention. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Eccentric Contractions, Testing &amp; Variables in Football<\/strong> <\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"466\" src=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-1024x466.png\" alt=\"vald nordbordnordic test\" class=\"wp-image-8111\" srcset=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-1024x466.png 1024w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-300x137.png 300w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-768x349.png 768w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-18x8.png 18w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow.png 1534w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. Eccentric Strength Tests<\/strong> <\/h2>\n\n\n\n<p>When assessing eccentric hamstring strength, the Nordic Hamstring Test remains a cornerstone. It\u2019s simple, reliable, and provides clear data\u2014especially when paired with technologies like the VALD NordBord. While several tests can provide additional insight into eccentric function (like the ones listed below), the Nordic is often the most accessible and repeatable option for football teams across all levels. <\/p>\n\n\n\n<p>Here are some of the tests that can complement Nordic strength assessments: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mid-Thigh Pull (MTP): Measures peak force and rate of force development (RFD) in the early contraction phase (100\u2013150ms) <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Run-Specific Isometric Test (RSIT): Tests isometric strength at joint angles that simulate sprint mechanics <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nordic Hamstring Test: Evaluates eccentric peak force, inter-limb asymmetry, and fatigue effects over time <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Braking Phase_ Force Plate : Horizontal deceleration capacity and braking impulse <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Change of Direction (COD) Test: Tracks deceleration and asymmetry pre-COD <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Eccentric Utilization Ratio (EUR): Compares CMJ and Squat Jump to reveal reliance on stretch-shortening cycle <\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why and When to Test Nordics?<\/strong> <\/h2>\n\n\n\n<p>In professional football settings, we recommend using the Nordic Hamstring Test: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>At the start of the preseason as part of a larger diagnostic battery <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiple times in the first 2\u20133 weeks to establish a strong baseline <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Regularly during the in-season (e.g., once per week or every 10\u201314 days) for monitoring trends and identifying outliers <\/li>\n<\/ul>\n\n\n\n<p>By establishing a player&#8217;s \u201cnormal range\u201d during the preseason, teams can later detect meaningful deviations that could signal fatigue, injury risk, or under-recovery. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Tracking Change: Using CV and SWC<\/strong> <\/h2>\n\n\n\n<p>Once baseline values are collected, we can monitor weekly changes using: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Coefficient of Variation (CV): Measures day-to-day or week-to-week variability in testing <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Smallest Worthwhile Change (SWC): The smallest change in value that\u2019s likely to be meaningful (often 0.2 \u00d7 between-player SD) <\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Example:<\/strong> <\/h3>\n\n\n\n<p>Let\u2019s say we test 4 players during the preseason: <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"399\" src=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-1-1024x399.png\" alt=\"TEST NORDICNORDBORD\" class=\"wp-image-8112\" srcset=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-1-1024x399.png 1024w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-1-300x117.png 300w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-1-768x299.png 768w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-1-18x7.png 18w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Table-no-shadow-1.png 1534w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>If Player C later records a force of 355N, that would exceed their SWC and signal a potential red flag, especially if combined with soreness, lower sleep scores, or increased fatigue. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>From Numbers to Readiness: Nordic + COMBINATORIX<\/strong> <\/h2>\n\n\n\n<p>This is where things get exciting. Nordic results don\u2019t exist in a vacuum\u2014they can be combined with other readiness metrics to form a more holistic player profile. <\/p>\n\n\n\n<p>For example, you can calculate a Z-score or composite readiness index based on: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Max force in the Nordics <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Freshness index (subjective collected data) <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pain status or soreness <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sleep duration or quality <\/li>\n<\/ul>\n\n\n\n<p>This creates a COMBINATORIX-style readiness score, which helps practitioners determine if the player is \u201cready to go\u201d or needs modification\u2014especially in high-risk weeks. In many professional clubs, Nordic testing is: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Run weekly on MD+3, often before small-sided games <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Used as part of an introductory training session early in the week <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tied to GPS or match load to interpret eccentric recovery demands <\/li>\n<\/ul>\n\n\n\n<p>Of course, this starts to blur the lines between monitoring and periodisation, but the key idea is simple: <\/p>\n\n\n\n<p>Know your players\u2019 baseline. Monitor weekly. Use data to adapt. <\/p>\n\n\n\n<p>Integrating GPS deceleration data with assessments of eccentric hamstring strength, such as the Nordic Hamstring Test, offers a approach to monitoring and enhancing player performance in football. However, accurately correlating these datasets presents challenges, particularly due to the difficulty in determining which leg bears the brunt of deceleration forces during analysis. This complexity underscores the need for further research to refine these methodologies. <\/p>\n\n\n\n<p>Deceleration actions in football are notably demanding. Research by Harper et al. highlights that decelerations can impose forces exceeding 9 times body weight on players . Such substantial forces not only elevate the risk of injury but are also associated with declines in performance levels.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"711\" src=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-1024x711.png\" alt=\"TESTINGNORDIC TESTvald nordbord\" class=\"wp-image-8113\" srcset=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-1024x711.png 1024w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-300x208.png 300w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-768x533.png 768w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-18x12.png 18w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD.png 1534w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-science-of-multi-directional-speed wp-block-embed-science-of-multi-directional-speed\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"KKqddghvIx\"><a href=\"https:\/\/sciofmultispeed.com\/deceleration-the-most-mechanically-demanding-task-in-multi-directional-sports\/\">Deceleration: The Most Mechanically Demanding Task in Multi-Directional Sports?<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Deceleration: The Most Mechanically Demanding Task in Multi-Directional Sports?&#8221; &#8212; Science of Multi-Directional Speed\" src=\"https:\/\/sciofmultispeed.com\/deceleration-the-most-mechanically-demanding-task-in-multi-directional-sports\/embed\/#?secret=2bvOIxJU2n#?secret=KKqddghvIx\" data-secret=\"KKqddghvIx\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Advanced analytical techniques, including machine learning and random forest models, have been employed to explore the relationship between deceleration patterns and soft tissue injuries. For instance, studies have demonstrated that variables like the number of decelerations can serve as significant predictors of injury risk. In one study, the number of decelerations had the highest predictive power for injuries compared to other variables, emphasizing the importance of monitoring this metric.<\/p>\n\n\n\n<p>These insights prompt a reevaluation of training drills, especially those conducted close to match days. Common practices on MD-1 and MD-2 involve 8v8 to 11v11 games in medium-sized spaces to manage player load. However, such drills often result in increased acceleration and deceleration actions. The available space allows players to reach higher speeds, necessitating greater deceleration forces. Additionally, the reduced area leads to more frequent ball interactions, thereby intensifying the drills. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"486\" src=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.26.15.png\" alt=\"vald performancenordbordnordic test \" class=\"wp-image-8115\" srcset=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.26.15.png 900w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.26.15-300x162.png 300w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.26.15-768x415.png 768w, https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-08-at-10.26.15-18x10.png 18w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">MD-1 <\/figcaption><\/figure>\n\n\n\n<p>Implementing constraints like limiting touches or introducing tactical objectives such as pressing or immediate ball repossession can further elevate the intensity. These modifications, while beneficial for tactical preparation, may inadvertently increase the physical demands on players, particularly concerning deceleration stresses.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Back to the Nordic Test<\/strong> <\/h2>\n\n\n\n<p>All of this brings me back to the Nordic Hamstring Test\u2014not just as a baseline screening tool, but as a regular monitoring method for eccentric hamstring strength throughout the season. <\/p>\n\n\n\n<p>In previous content, I\u2019ve talked about microdosing strength and optimizing warm-ups for performance and injury prevention (you can read more on:<a href=\"https:\/\/www.ultrax.ai\/hr\/uncategorized\/hidden-testing\/\" target=\"_blank\" rel=\"noreferrer noopener\"> <\/a><a href=\"https:\/\/www.ultrax.ai\/hr\/uncategorized\/hidden-testing\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.ultrax.ai\/uncategorized\/hidden-testing\/<\/a>). Now, I\u2019d like to take it a step further and propose how the Nordic test can be smartly integrated into the weekly football routine. <\/p>\n\n\n\n<p>I believe there is real value in using the Nordic test on MD-2 or MD-1, either before or after the training session, to observe how recent training loads have impacted hamstring function. Personally, I lean toward testing after the session, as it gives us a clearer picture of fatigue or recovery status. <\/p>\n\n\n\n<p>A few weeks ago, we ran a small experiment to explore this idea further. <\/p>\n\n\n\n<p>We tested a player\u2014one of my students and a former professional\u2014who has a history of two ACL injuries. He doesn\u2019t train at a professional intensity anymore, but he\u2019s active and familiar with the load. We used the VALD NordBord to measure his eccentric hamstring strength, and here\u2019s what happened: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nordic Hamstring Test after warm-up (pre-training): \u2192 ~350 \u00b1 20N <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Then we applied an RSA protocol: \u2192 1 set of 6 repetitions of 2x20m sprints (including one change of direction), with 30 seconds rest <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nordic Hamstring Test after RSA protocol (post-training): \u2192 15% drop in peak force <\/li>\n<\/ul>\n\n\n\n<p>That kind of drop\u2014especially in someone not exposed to regular high-intensity loads\u2014speaks volumes. It suggests that even short bursts of high-speed activity, sprinting, and deceleration can significantly fatigue the hamstrings and reduce their capacity to produce eccentric force. <\/p>\n\n\n\n<p>Now, we\u2019re taking it a step further with a new monitoring project in a women\u2019s football club. <\/p>\n\n\n\n<p>For the next 2\u20134 weeks, we\u2019ll test players: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Before and after training sessions <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Using CMJ (Countermovement Jump) and the Nordic Hamstring Test <\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>While also tracking: <\/li>\n<\/ul>\n\n\n\n<p>The goal is to understand how different training formats affect neuromuscular readiness, fatigue, and eccentric capacity in real-world team sport environments. <\/p>\n\n\n\n<p>By collecting this data consistently, we hope to build a smarter system of load management\u2014one where the Nordic test isn\u2019t just a pre-season screening tool, but a weekly pulse-check that helps us align training demands with each athlete\u2019s readiness and resilience. <\/p>\n\n\n\n<p>Let\u2019s see what the data reveals. One thing is certain: the more we integrate strength diagnostics with contextual understanding of training (e.g., drill design, session intensity, recovery status), the closer we get to real performance intelligence. <\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>In the past three blogs, we explored the role of VALD technology in football, from jumping metrics to return-to-sport testing. Now, it&#8217;s time to shift the spotlight to one of the most talked-about muscle groups in the game: the hamstrings. We&#8217;ve all read the literature. The connection between high-speed running, sprinting actions, and hamstring injuries [&hellip;]<\/p>","protected":false},"author":7,"featured_media":8116,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-8109","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trainings"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Using VALD Technology in Football Teams - Part 4 - NordBord\u00a0 | Ultrax AI<\/title>\n<meta name=\"description\" content=\"Learn how the VALD NordBord helps football teams assess eccentric hamstring strength, monitor asymmetries, and reduce injury risk through regular Nordic hamstring testing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ultrax.ai\/hr\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Using VALD Technology in Football Teams - Part 4 - NordBord\u00a0 | Ultrax AI\" \/>\n<meta property=\"og:description\" content=\"Learn how the VALD NordBord helps football teams assess eccentric hamstring strength, monitor asymmetries, and reduce injury risk through regular Nordic hamstring testing.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ultrax.ai\/hr\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/\" \/>\n<meta property=\"og:site_name\" content=\"Ultrax AI\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=100089183396893\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-08T09:54:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-11T14:43:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Tanja Matu\u0161inskij\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisao\/la\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tanja Matu\u0161inskij\" \/>\n\t<meta name=\"twitter:label2\" content=\"Procijenjeno vrijeme \u010ditanja\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minuta\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/\"},\"author\":{\"name\":\"Tanja Matu\u0161inskij\",\"@id\":\"https:\/\/www.ultrax.ai\/#\/schema\/person\/d15d95ef325e87f0e1462b79289af961\"},\"headline\":\"Using VALD Technology in Football Teams &#8211; Part 4 &#8211; NordBord\u00a0\",\"datePublished\":\"2025-09-08T09:54:53+00:00\",\"dateModified\":\"2026-03-11T14:43:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/\"},\"wordCount\":1531,\"publisher\":{\"@id\":\"https:\/\/www.ultrax.ai\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png\",\"articleSection\":[\"Trainings\"],\"inLanguage\":\"hr\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/\",\"url\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/\",\"name\":\"Using VALD Technology in Football Teams - Part 4 - NordBord\u00a0 | Ultrax AI\",\"isPartOf\":{\"@id\":\"https:\/\/www.ultrax.ai\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png\",\"datePublished\":\"2025-09-08T09:54:53+00:00\",\"dateModified\":\"2026-03-11T14:43:14+00:00\",\"description\":\"Learn how the VALD NordBord helps football teams assess eccentric hamstring strength, monitor asymmetries, and reduce injury risk through regular Nordic hamstring testing.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#breadcrumb\"},\"inLanguage\":\"hr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"hr\",\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#primaryimage\",\"url\":\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png\",\"contentUrl\":\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png\",\"width\":1920,\"height\":1080,\"caption\":\"NORDBORD TESTING NORDIC\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.ultrax.ai\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Using VALD Technology in Football Teams &#8211; Part 4 &#8211; NordBord\u00a0\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.ultrax.ai\/#website\",\"url\":\"https:\/\/www.ultrax.ai\/\",\"name\":\"Ultrax\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.ultrax.ai\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.ultrax.ai\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"hr\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.ultrax.ai\/#organization\",\"name\":\"Ultrax Technologies\",\"url\":\"https:\/\/www.ultrax.ai\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"hr\",\"@id\":\"https:\/\/www.ultrax.ai\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2024\/03\/Logo.svg\",\"contentUrl\":\"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2024\/03\/Logo.svg\",\"width\":230,\"height\":39,\"caption\":\"Ultrax Technologies\"},\"image\":{\"@id\":\"https:\/\/www.ultrax.ai\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/profile.php?id=100089183396893\",\"https:\/\/www.instagram.com\/ultrax.ai\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.ultrax.ai\/#\/schema\/person\/d15d95ef325e87f0e1462b79289af961\",\"name\":\"Tanja Matu\u0161inskij\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"hr\",\"@id\":\"https:\/\/www.ultrax.ai\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/1d35c70861c5ad09901ca6ee5dbc79b7b111328ba8cf235c6f728b591db34b62?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/1d35c70861c5ad09901ca6ee5dbc79b7b111328ba8cf235c6f728b591db34b62?s=96&d=mm&r=g\",\"caption\":\"Tanja Matu\u0161inskij\"},\"url\":\"https:\/\/www.ultrax.ai\/hr\/author\/tanjamatusinskij\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Using VALD Technology in Football Teams - Part 4 - NordBord\u00a0 | Ultrax AI","description":"Learn how the VALD NordBord helps football teams assess eccentric hamstring strength, monitor asymmetries, and reduce injury risk through regular Nordic hamstring testing.","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:\/\/www.ultrax.ai\/hr\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/","og_locale":"hr_HR","og_type":"article","og_title":"Using VALD Technology in Football Teams - Part 4 - NordBord\u00a0 | Ultrax AI","og_description":"Learn how the VALD NordBord helps football teams assess eccentric hamstring strength, monitor asymmetries, and reduce injury risk through regular Nordic hamstring testing.","og_url":"https:\/\/www.ultrax.ai\/hr\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/","og_site_name":"Ultrax AI","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=100089183396893","article_published_time":"2025-09-08T09:54:53+00:00","article_modified_time":"2026-03-11T14:43:14+00:00","og_image":[{"width":1920,"height":1080,"url":"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png","type":"image\/png"}],"author":"Tanja Matu\u0161inskij","twitter_card":"summary_large_image","twitter_misc":{"Napisao\/la":"Tanja Matu\u0161inskij","Procijenjeno vrijeme \u010ditanja":"8 minuta"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#article","isPartOf":{"@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/"},"author":{"name":"Tanja Matu\u0161inskij","@id":"https:\/\/www.ultrax.ai\/#\/schema\/person\/d15d95ef325e87f0e1462b79289af961"},"headline":"Using VALD Technology in Football Teams &#8211; Part 4 &#8211; NordBord\u00a0","datePublished":"2025-09-08T09:54:53+00:00","dateModified":"2026-03-11T14:43:14+00:00","mainEntityOfPage":{"@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/"},"wordCount":1531,"publisher":{"@id":"https:\/\/www.ultrax.ai\/#organization"},"image":{"@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#primaryimage"},"thumbnailUrl":"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png","articleSection":["Trainings"],"inLanguage":"hr"},{"@type":"WebPage","@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/","url":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/","name":"Using VALD Technology in Football Teams - Part 4 - NordBord\u00a0 | Ultrax AI","isPartOf":{"@id":"https:\/\/www.ultrax.ai\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#primaryimage"},"image":{"@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#primaryimage"},"thumbnailUrl":"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png","datePublished":"2025-09-08T09:54:53+00:00","dateModified":"2026-03-11T14:43:14+00:00","description":"Learn how the VALD NordBord helps football teams assess eccentric hamstring strength, monitor asymmetries, and reduce injury risk through regular Nordic hamstring testing.","breadcrumb":{"@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#breadcrumb"},"inLanguage":"hr","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/"]}]},{"@type":"ImageObject","inLanguage":"hr","@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#primaryimage","url":"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png","contentUrl":"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2025\/09\/NORDBORD-VALD-2.png","width":1920,"height":1080,"caption":"NORDBORD TESTING NORDIC"},{"@type":"BreadcrumbList","@id":"https:\/\/www.ultrax.ai\/trainings\/using-vald-technology-in-football-teams-part-4-nordbord\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.ultrax.ai\/"},{"@type":"ListItem","position":2,"name":"Using VALD Technology in Football Teams &#8211; Part 4 &#8211; NordBord\u00a0"}]},{"@type":"WebSite","@id":"https:\/\/www.ultrax.ai\/#website","url":"https:\/\/www.ultrax.ai\/","name":"Ultrax","description":"","publisher":{"@id":"https:\/\/www.ultrax.ai\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.ultrax.ai\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"hr"},{"@type":"Organization","@id":"https:\/\/www.ultrax.ai\/#organization","name":"Ultrax Technologies","url":"https:\/\/www.ultrax.ai\/","logo":{"@type":"ImageObject","inLanguage":"hr","@id":"https:\/\/www.ultrax.ai\/#\/schema\/logo\/image\/","url":"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2024\/03\/Logo.svg","contentUrl":"https:\/\/www.ultrax.ai\/wp-content\/uploads\/2024\/03\/Logo.svg","width":230,"height":39,"caption":"Ultrax Technologies"},"image":{"@id":"https:\/\/www.ultrax.ai\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=100089183396893","https:\/\/www.instagram.com\/ultrax.ai\/"]},{"@type":"Person","@id":"https:\/\/www.ultrax.ai\/#\/schema\/person\/d15d95ef325e87f0e1462b79289af961","name":"Tanja Matu\u0161inskij","image":{"@type":"ImageObject","inLanguage":"hr","@id":"https:\/\/www.ultrax.ai\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/1d35c70861c5ad09901ca6ee5dbc79b7b111328ba8cf235c6f728b591db34b62?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/1d35c70861c5ad09901ca6ee5dbc79b7b111328ba8cf235c6f728b591db34b62?s=96&d=mm&r=g","caption":"Tanja Matu\u0161inskij"},"url":"https:\/\/www.ultrax.ai\/hr\/author\/tanjamatusinskij\/"}]}},"acf":[],"_links":{"self":[{"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/posts\/8109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/comments?post=8109"}],"version-history":[{"count":0,"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/posts\/8109\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/media\/8116"}],"wp:attachment":[{"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/media?parent=8109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/categories?post=8109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ultrax.ai\/hr\/wp-json\/wp\/v2\/tags?post=8109"}],"curies":[{"name":"radni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}