{"id":405244,"date":"2019-12-05T23:55:15","date_gmt":"2019-12-06T06:55:15","guid":{"rendered":"https:\/\/www.swimmingworldmagazine.com\/news\/?p=405244"},"modified":"2019-12-06T01:38:18","modified_gmt":"2019-12-06T08:38:18","slug":"swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk","status":"publish","type":"post","link":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/","title":{"rendered":"Swimming World Presents &#8220;Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; By Dr. Rod Havriluk"},"content":{"rendered":"<h1 style=\"text-align: center;\"><span style=\"color: #008000;\"><strong>Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; <\/strong><\/span><\/h1>\n<p style=\"text-align: center;\"><span style=\"color: #008000;\"><strong>By Dr. Rod Havriluk<\/strong><\/span><\/p>\n<p>The youngest competitive swimmers (under age 10) are often trained with a similar regimen regardless of their potential in specific events.<\/p>\n<p>As swimmers age to become preteens, training often segregates swimmers by speed across all events, as opposed to sprint or distance specialty. Swimmers may not receive specialty training until the later teen years. Early identification of sprint vs. distance specialization can benefit swimmer training and also help to keep more swimmers in the sport.<\/p>\n<p><span style=\"color: #008000;\">VERTICAL JUMP SCORE AND MUSCLE FIBER COMPOSITION<\/span><br \/>\nThe vertical jump test (VJ) can help with early identification of event specialization. The VJ has long been considered a measure of explosive power as the score varies with muscle fiber composition.<\/p>\n<p>A higher VJ indicates a greater proportion of fast-twitch muscle fibers that \u201chave higher contraction speeds and produce more force per contraction\u201d (DeBruyn, 1979). A lower VJ indicates a greater proportion of slow-twitch fibers that are designed for generating less force over a longer time. Based on muscle fiber composition, swimmers with a higher VJ are better suited for sprinting, while swimmers with a lower VJ are better suited for distance events.<\/p>\n<p><span style=\"color: #008000;\">TESTING PROTOCOL<\/span><br \/>\nThe VJ testing procedure is fairly simple. A person stands with the preferred side next to a wall (see main graphic, left image). The arm is held overhead with the fingers straight and the palm against the wall. A mark is made on the wall at the end of the middle finger. The person then squats (middle image), jumps, reaches and marks the wall at as high a point as possible (right image). The distance between the two marks is the VJ score.<\/p>\n<p style=\"text-align: center;\"><strong>To read more about how to use your VJ Score to determine your event potential,<\/strong><br \/>\n<strong>Check out the December issue of Swimming World Magazine, available now!<\/strong><\/p>\n<h3 style=\"text-align: center;\"><a href=\"https:\/\/www.swimmingworldmagazine.com\/issues\/2019\/swimming-world-magazine-december-2019-issue-pdf-only\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"404430\" data-permalink=\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-2019-female-world-and-american-swimmer-of-the-year-regan-smith-on-the-cover-of-december-2019-issue\/swimming-world-december-2019-cover-2019-world-swimmers-of-the-year-regan-smith-800x1070\/\" data-orig-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070.jpg\" data-orig-size=\"800,1070\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Swimming World December 2019 Cover 2019 World Swimmers of the Year Regan Smith 800&#215;1070\" data-image-description=\"&lt;p&gt;Swimming World December 2019 Cover 2019 World Swimmers of the Year Regan Smith 800&#215;1070&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;December 2019 &lt;\/p&gt;\n\" data-medium-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-700x500.jpg\" data-large-file=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-766x1024.jpg\" class=\"aligncenter wp-image-404430 size-full\" src=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070.jpg\" alt=\"Swimming World December 2019 Cover 2019 World Swimmers of the Year Regan Smith 800x1070\" width=\"800\" height=\"1070\" srcset=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070.jpg 800w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-150x201.jpg 150w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-766x1024.jpg 766w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-300x401.jpg 300w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-450x602.jpg 450w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-673x900.jpg 673w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-374x500.jpg 374w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-245x327.jpg 245w, https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/11\/Swimming-World-December-2019-Cover-2019-World-Swimmers-of-the-Year-Regan-Smith-800x1070-533x713.jpg 533w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/h3>\n<h3 style=\"text-align: center;\">Get <em>Swimming World Magazine<\/em> and <em>Swimming World Biweekly<\/em> FREE When You<br \/>\n<a href=\"https:\/\/www.swimmingworldmagazine.com\/news\/product-category\/ishof-membership\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-saferedirecturl=\"https:\/\/www.google.com\/url?hl=en&amp;q=https:\/\/www.swimmingworldmagazine.com\/news\/product-category\/ishof-membership\/&amp;source=gmail&amp;ust=1522345712821000&amp;usg=AFQjCNGfwbLD2OaI21g28efcR0DZZlQSOQ\"><span style=\"color: #0000ff;\">Become A Member of the International Swimming Hall of Fame<\/span><\/a><\/h3>\n<h3 style=\"text-align: center;\">Want More? <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/www.swimmingworldmagazine.com\/news\/product\/2-year-print-and-total-access-download-past-24-issues-of-swimming-world-magazine-automatic-renewal\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-saferedirecturl=\"https:\/\/www.google.com\/url?hl=en&amp;q=https:\/\/www.swimmingworldmagazine.com\/news\/product\/2-year-print-and-total-access-download-past-24-issues-of-swimming-world-magazine-automatic-renewal\/&amp;source=gmail&amp;ust=1522345712821000&amp;usg=AFQjCNGUtYR-CDVRKQExnpkyfZ9KA7lw2g\">Subscribe With This Special 2-Year Offer!<\/a><\/span><\/h3>\n<h3 style=\"text-align: center;\">New! 1-Year Digital Only Subscription for just $39.95 <a href=\"https:\/\/www.swimmingworldmagazine.com\/news\/product\/swimming-world-vault-digital-only-subscription\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-saferedirecturl=\"https:\/\/www.google.com\/url?hl=en&amp;q=https:\/\/www.swimmingworldmagazine.com\/news\/product\/swimming-world-vault-digital-only-subscription\/&amp;source=gmail&amp;ust=1522345712821000&amp;usg=AFQjCNFABDX1wfngxBgFclk9e7ThsWDuyA\"><span style=\"color: #ff0000;\">Order Now<\/span>!<\/a><\/h3>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.swimmingworldmagazine.com\/news\/product\/swimming-world-magazine-december-2019-issue-pdf-only\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-auth=\"NotApplicable\"><span style=\"color: #0000ff;\">Non-Subscribers Can Download This Issue For Only $5.94<\/span><\/a><\/p>\n<p><span style=\"color: #000000;\">FEATURES<\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>016 THE TOP 10 PERFORMANCES OF 2019<\/strong><\/span><br \/>\n<strong>by David Rieder<\/strong><br \/>\nThis year\u2019s list of top performances in swimming comes exclusively from the 2019 FINA World Championships in Gwangju, where world records went down, the world\u2019s best swimmers established themselves with signature performances, and teenagers took down legends in their best events. The list includes the top five performances for both female and male swimmers, with all swimmers eligible to appear only once.<\/p>\n<p><span style=\"color: #008000;\"><strong>020 2019 SWIMMERS OF THE YEAR<\/strong><\/span><br \/>\n<strong>by John Lohn, Dan D\u2019Addona, Craig Lord and David Rieder<\/strong><br \/>\nWorld &amp; American: Regan Smith &amp; Caeleb Dressel, European: Katinka Hosszu &amp; Adam Peaty, Pacific Rim: Ariarne Titmus &amp; Daiya Seto, African: Tatjana Schoenmaker &amp; Chad le Clos<\/p>\n<p><span style=\"color: #008000;\"><strong>026 TAKEOFF TO TOKYO: WHEN BACKSTROKE WENT ROGUE<\/strong><\/span><br \/>\n<strong>by John Lohn<br \/>\n<\/strong>It\u2019s been more than 30 years since the underwater dolphin kick altered the landscape of the backstroke event, and never more so than at the 1988 Olympic Games in Seoul did it play a greater role.<\/p>\n<p>COACHING<\/p>\n<p><span style=\"color: #008000;\"><strong>010 LESSONS WITH THE LEGENDS: XU YIMING<\/strong><\/span><br \/>\n<strong>by Michael J. Stott<\/strong><\/p>\n<p><span style=\"color: #008000;\"><strong>014 SWIMMING TECHNIQUE CONCEPTS: THE VERTICAL JUMP TEST FOR EVENT SELECTION<\/strong><\/span><br \/>\n<strong>by Rod Havriluk<\/strong><br \/>\nThe vertical jump is a relatively simple test that reflects a swimmer\u2019s muscle fiber composition, which, in turn, can help select a swimmer\u2019s most competitive events. Using the VJ test to identify swimmers likely to excel in sprint or distance events may not only improve performance at an early age, but also avoid losing sprinters who are averse to distance training and distance swimmers who are discouraged by sprinting.<\/p>\n<p><span style=\"color: #008000;\"><strong>041 Q&amp;A WITH COACH BYRON MacDONALD<\/strong><\/span><br \/>\n<strong>by Michael J. Stott<\/strong><\/p>\n<p><span style=\"color: #008000;\"><strong>042 HOW THEY TRAIN KYLIE MASSE<\/strong><\/span><br \/>\n<strong>by Michael J. Stott<\/strong><\/p>\n<p>TRAINING<\/p>\n<p><span style=\"color: #008000;\"><strong>013 DRYSIDE TRAINING: HOLIDAY TRAINING<\/strong><\/span><br \/>\n<strong>by J.R. Rosania<\/strong><\/p>\n<p>JUNIOR SWIMMER<\/p>\n<p><span style=\"color: #008000;\"><strong>038 GOLDMINDS: WHAT MAKES GOOD COACHES GREAT?<\/strong><\/span><br \/>\n<strong>by Wayne Goldsmith<\/strong><br \/>\nCoaches change lives. They can inspire ordinary people to achieve remarkable and extraordinary things.<\/p>\n<p><span style=\"color: #008000;\"><strong>045 UP &amp; COMERS: RYAN HOGAN<\/strong><\/span><br \/>\n<strong>by Shoshanna Rutemiller<\/strong><\/p>\n<p>COLUMNS&amp; SPECIAL SECTIONS<\/p>\n<p><span style=\"color: #008000;\"><strong>008 A VOICE FOR THE SPORT<\/strong><\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>009 BEYOND THE YARDS<\/strong><\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>029 HOLIDAY GIFT GUIDE<\/strong><\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>044 HASTY HIGH POINTERS<\/strong><\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>046 DADS ON DECK<\/strong><\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>047 GUTTERTALK<\/strong><\/span><\/p>\n<p><span style=\"color: #008000;\"><strong>048 PARTING SHOT<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; By Dr. Rod Havriluk The youngest competitive swimmers (under age 10) are often trained with a similar regimen regardless of<\/p>\n","protected":false},"author":5977,"featured_media":405249,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"dois","enabled":false},"version":2}},"categories":[3,16],"tags":[58913,27708,67640,119166,54417,119832],"class_list":["post-405244","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-featured","category-swimming-world-magazine","tag-dr-rod-havriluk","tag-rod-havriluk","tag-swimming-technique-concepts","tag-swimming-world-december-2019","tag-swimming-world-magazine","tag-the-vertical-jump-test"],"jetpack_publicize_connections":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v24.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Swimming World Presents &quot;Swimming Technique Concepts: The Vertical Jump Test For Event Selection&quot; By Dr. Rod Havriluk - Swimming World<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Swimming World Presents &quot;Swimming Technique Concepts: The Vertical Jump Test For Event Selection&quot; By Dr. Rod Havriluk\" \/>\r\n<meta property=\"og:description\" content=\"Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; By Dr. Rod Havriluk The youngest competitive swimmers (under age 10) are often trained with a similar regimen regardless of\" \/>\r\n<meta property=\"og:url\" content=\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/\" \/>\r\n<meta property=\"og:site_name\" content=\"Swimming World\" \/>\r\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SwimmingWorld\" \/>\r\n<meta property=\"article:published_time\" content=\"2019-12-06T06:55:15+00:00\" \/>\r\n<meta property=\"article:modified_time\" content=\"2019-12-06T08:38:18+00:00\" \/>\r\n<meta property=\"og:image\" content=\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg\" \/>\r\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\r\n\t<meta property=\"og:image:height\" content=\"720\" \/>\r\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\r\n<meta name=\"author\" content=\"Lauren Serowik\" \/>\r\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\r\n<meta name=\"twitter:creator\" content=\"@swimmingworld\" \/>\r\n<meta name=\"twitter:site\" content=\"@swimmingworld\" \/>\r\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Lauren Serowik\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\r\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/\"},\"author\":{\"name\":\"Lauren Serowik\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/person\/fb77c58dbbf5395dc2574a8e9668f7e1\"},\"headline\":\"Swimming World Presents &#8220;Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; By Dr. Rod Havriluk\",\"datePublished\":\"2019-12-06T06:55:15+00:00\",\"dateModified\":\"2019-12-06T08:38:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/\"},\"wordCount\":712,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg\",\"keywords\":[\"Dr. Rod Havriluk\",\"Rod Havriluk\",\"Swimming Technique Concepts\",\"Swimming World December 2019\",\"Swimming World Magazine\",\"The Vertical Jump Test\"],\"articleSection\":[\"-Home Slider\",\"Swimming World Magazine\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/\",\"url\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/\",\"name\":\"Swimming World Presents \\\"Swimming Technique Concepts: The Vertical Jump Test For Event Selection\\\" By Dr. Rod Havriluk - Swimming World\",\"isPartOf\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg\",\"datePublished\":\"2019-12-06T06:55:15+00:00\",\"dateModified\":\"2019-12-06T08:38:18+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#primaryimage\",\"url\":\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg\",\"contentUrl\":\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg\",\"width\":1000,\"height\":720,\"caption\":\"Swimming World December 2019 Swimmers of the Year - Swimming Technique Concepts - The Vertical Jump Test For Event Selection - Rod Havriluk\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.swimmingworldmagazine.com\/news\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Swimming World Presents &#8220;Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; By Dr. Rod Havriluk\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#website\",\"url\":\"https:\/\/www.swimmingworldmagazine.com\/news\/\",\"name\":\"Swimming World\",\"description\":\"The Global Leader in Aquatic News\",\"publisher\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.swimmingworldmagazine.com\/news\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#organization\",\"name\":\"Swimming World\",\"url\":\"https:\/\/www.swimmingworldmagazine.com\/news\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2022\/01\/SWorld_BLKBKG-1.jpg\",\"contentUrl\":\"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2022\/01\/SWorld_BLKBKG-1.jpg\",\"width\":1799,\"height\":900,\"caption\":\"Swimming World\"},\"image\":{\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SwimmingWorld\",\"https:\/\/x.com\/swimmingworld\",\"https:\/\/instagram.com\/swimmingworldmag\/\",\"https:\/\/www.youtube.com\/user\/SwimmingWorldSPI\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/person\/fb77c58dbbf5395dc2574a8e9668f7e1\",\"name\":\"Lauren Serowik\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/e2a3ecb4f7e9f9a5761ddfc64ca452a8?s=96&d=blank&r=pg\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/e2a3ecb4f7e9f9a5761ddfc64ca452a8?s=96&d=blank&r=pg\",\"caption\":\"Lauren Serowik\"},\"url\":\"https:\/\/www.swimmingworldmagazine.com\/news\/author\/lauren1\/\"}]}<\/script>\r\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Swimming World Presents \"Swimming Technique Concepts: The Vertical Jump Test For Event Selection\" By Dr. Rod Havriluk - Swimming World","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.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/","og_locale":"en_US","og_type":"article","og_title":"Swimming World Presents \"Swimming Technique Concepts: The Vertical Jump Test For Event Selection\" By Dr. Rod Havriluk","og_description":"Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; By Dr. Rod Havriluk The youngest competitive swimmers (under age 10) are often trained with a similar regimen regardless of","og_url":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/","og_site_name":"Swimming World","article_publisher":"https:\/\/www.facebook.com\/SwimmingWorld","article_published_time":"2019-12-06T06:55:15+00:00","article_modified_time":"2019-12-06T08:38:18+00:00","og_image":[{"width":1000,"height":720,"url":"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg","type":"image\/jpeg"}],"author":"Lauren Serowik","twitter_card":"summary_large_image","twitter_creator":"@swimmingworld","twitter_site":"@swimmingworld","twitter_misc":{"Written by":"Lauren Serowik","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#article","isPartOf":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/"},"author":{"name":"Lauren Serowik","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/person\/fb77c58dbbf5395dc2574a8e9668f7e1"},"headline":"Swimming World Presents &#8220;Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; By Dr. Rod Havriluk","datePublished":"2019-12-06T06:55:15+00:00","dateModified":"2019-12-06T08:38:18+00:00","mainEntityOfPage":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/"},"wordCount":712,"commentCount":0,"publisher":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#organization"},"image":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#primaryimage"},"thumbnailUrl":"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg","keywords":["Dr. Rod Havriluk","Rod Havriluk","Swimming Technique Concepts","Swimming World December 2019","Swimming World Magazine","The Vertical Jump Test"],"articleSection":["-Home Slider","Swimming World Magazine"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/","url":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/","name":"Swimming World Presents \"Swimming Technique Concepts: The Vertical Jump Test For Event Selection\" By Dr. Rod Havriluk - Swimming World","isPartOf":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#primaryimage"},"image":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#primaryimage"},"thumbnailUrl":"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg","datePublished":"2019-12-06T06:55:15+00:00","dateModified":"2019-12-06T08:38:18+00:00","breadcrumb":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#primaryimage","url":"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg","contentUrl":"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg","width":1000,"height":720,"caption":"Swimming World December 2019 Swimmers of the Year - Swimming Technique Concepts - The Vertical Jump Test For Event Selection - Rod Havriluk"},{"@type":"BreadcrumbList","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/swimming-world-presents-swimming-technique-concepts-the-vertical-jump-test-for-event-selection-by-dr-rod-havriluk\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.swimmingworldmagazine.com\/news\/"},{"@type":"ListItem","position":2,"name":"Swimming World Presents &#8220;Swimming Technique Concepts: The Vertical Jump Test For Event Selection&#8221; By Dr. Rod Havriluk"}]},{"@type":"WebSite","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#website","url":"https:\/\/www.swimmingworldmagazine.com\/news\/","name":"Swimming World","description":"The Global Leader in Aquatic News","publisher":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.swimmingworldmagazine.com\/news\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#organization","name":"Swimming World","url":"https:\/\/www.swimmingworldmagazine.com\/news\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/logo\/image\/","url":"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2022\/01\/SWorld_BLKBKG-1.jpg","contentUrl":"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2022\/01\/SWorld_BLKBKG-1.jpg","width":1799,"height":900,"caption":"Swimming World"},"image":{"@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SwimmingWorld","https:\/\/x.com\/swimmingworld","https:\/\/instagram.com\/swimmingworldmag\/","https:\/\/www.youtube.com\/user\/SwimmingWorldSPI"]},{"@type":"Person","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/person\/fb77c58dbbf5395dc2574a8e9668f7e1","name":"Lauren Serowik","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.swimmingworldmagazine.com\/news\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/e2a3ecb4f7e9f9a5761ddfc64ca452a8?s=96&d=blank&r=pg","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/e2a3ecb4f7e9f9a5761ddfc64ca452a8?s=96&d=blank&r=pg","caption":"Lauren Serowik"},"url":"https:\/\/www.swimmingworldmagazine.com\/news\/author\/lauren1\/"}]}},"cc_featured_image_caption":{"caption_text":"","source_text":"","source_url":""},"jetpack_featured_media_url":"https:\/\/vmrw8k5h.tinifycdn.com\/news\/wp-content\/uploads\/2019\/12\/Swimming-World-December-2019-Swimmers-of-the-Year-Swimming-Technique-Concepts-The-Vertical-Jump-Test-For-Event-Selection-Rod-Havriluk.jpg","jetpack_shortlink":"https:\/\/wp.me\/p56Jja-1Hqc","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/posts\/405244","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/users\/5977"}],"replies":[{"embeddable":true,"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/comments?post=405244"}],"version-history":[{"count":0,"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/posts\/405244\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/media\/405249"}],"wp:attachment":[{"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/media?parent=405244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/categories?post=405244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.swimmingworldmagazine.com\/news\/wp-json\/wp\/v2\/tags?post=405244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}