{"id":1797,"date":"2021-05-20T12:42:23","date_gmt":"2021-05-20T12:42:23","guid":{"rendered":"https:\/\/andreasphysioblog.com\/?p=1797"},"modified":"2021-07-22T22:19:44","modified_gmt":"2021-07-22T22:19:44","slug":"travelling-sports-medicine-guidelines-for-illness-and-jet-lag","status":"publish","type":"post","link":"https:\/\/andreasphysioblog.com\/?p=1797","title":{"rendered":"Travelling sports medicine. Guidelines for illness and jet-lag"},"content":{"rendered":"<header class=\"entry-header\">\n<h1 class=\"entry-title\">Travelling sports medicine. Guidelines for illness and\u00a0jet-lag<\/h1>\n<\/header>\n<div class=\"entry-body\">\n<div class=\"entry-content\">\n<h2><strong><img decoding=\"async\" class=\"alignnone size-full wp-image-7141\" src=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png?w=825\" sizes=\"(max-width: 825px) 100vw, 825px\" srcset=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png?w=825 825w, https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png?w=150 150w, https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png?w=300 300w, https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png?w=768 768w, https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png?w=1024 1024w, https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png 1580w\" alt=\"Sk\u00e6rmbillede 2016-03-01 kl. 13.38.32\" data-attachment-id=\"7141\" data-permalink=\"https:\/\/physioblogandreasbjerregaard.com\/2016\/01\/09\/travelling-sports-medicine-guidelines-for-illness-and-jet-lag\/skaermbillede-2016-03-01-kl-13-38-32\/\" data-orig-file=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png\" data-orig-size=\"1580,484\" 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;0&quot;}\" data-image-title=\"Sk\u00e6rmbillede 2016-03-01 kl. 13.38.32\" data-image-description=\"\" data-medium-file=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png?w=300\" data-large-file=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-03-01-kl-13-38-32.png?w=825\" \/>Jet lag \u2013 Introduction<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p>\u201cJet lag\u201d occurs as a result of travel across several time zones<\/p>\n<p>Definition of \u201cJet lag\u201d: A transient clinical syndrome (collection of symptoms) that occurs in response to a disruption of normal biological rhythms and classically results in non-specific symptoms \u2022 Develops in most individuals when they travel across three or more time zones<\/p>\n<p>Characterized by two phases:<\/p>\n<ul>\n<li>De-synchronization phase: development of circadian dysrhythmia\n<ul>\n<li><em>Disruption (de-synchronization) of the normal biological clock (circadian rhythms) by external cues (light and dark cycles) \u2013 crossing several time zones rapidly (few hours e.g. intercontinental flights) affects circadian rhythms \u2013 external cues of the previous time zone have to be adjusted to the new time zone \u2013 Development of \u201cjet lag\u201d<\/em><\/li>\n<\/ul>\n<\/li>\n<li>Resynchronization phase: adaptation to the new time zone\n<ul>\n<li>Resynchronization \u2013 Occurs over a few days (factors to be discussed) \u2013 Re-setting of circadian rhythms \u2013 Correlates with the resolution of the symptoms of jet lag.\u00a0More time zones crossed, the longer it takes to resynchronize the circadian rhythms \u2013 Rule of thumb \u2013 it takes approximately 1 day per time zone crossed to resynchronize<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Basic physiology of circadian rhythms<\/h2>\n<ul>\n<li>An inherent \u201cbody clock\u201d is situated at the base of the Hypothalamus (in the suprachiasmatic nuclei)<\/li>\n<li>The body clock regulates the body\u2019s normal rhythm \u2013 24 hours long (\u201ccircadian rhythm\u201d)<\/li>\n<li>Rhythm \u2013 implies that the body clock has to be continually \u201cadjusted\u201d to be in synchrony with the day\u2019s 24-hour solar day<\/li>\n<li>Synchrony is achieved by \u201czeitgebers\u201d (time givers).<\/li>\n<li>There is an inherent periodicity of 24 to 26 hours, and exists in a number of physiological systems in the body<\/li>\n<li>Function \u2013 internal time indicators for the body<\/li>\n<li>Circadian rhythms are important in the normal regulation of physical and psychological parameters such as body temperature, blood cortisol levels, and alertness (sleep and wake cycle)<\/li>\n<\/ul>\n<h2>Symptoms of Jet lag<\/h2>\n<p>\u2022 General malaise \u2022 Headaches \u2022 Insomnia \u2022 Fatigue \u2022 Lethargy \u2022 Apathy \u2022 Dizziness \u2022 Non-specific gastrointestinal distress \u2022 Reduced appetite \u2022 Poor mental and psychological task performance \u2022 Reduced athletic performance<\/p>\n<figure id=\"attachment_6545\" class=\"wp-caption aligncenter\" data-shortcode=\"caption\" aria-describedby=\"caption-attachment-6545\"><a href=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-01-09-kl-14-55-26.png\" rel=\"attachment wp-att-6545\"><img decoding=\"async\" class=\"wp-image-6545 size-medium\" src=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-01-09-kl-14-55-26.png?w=300&amp;h=161\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-01-09-kl-14-55-26.png?w=300&amp;h=161 300w, https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-01-09-kl-14-55-26.png?w=600&amp;h=322 600w, https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-01-09-kl-14-55-26.png?w=150&amp;h=80 150w\" alt=\"Sk\u00e6rmbillede 2016-01-09 kl. 14.55.26\" width=\"300\" height=\"161\" data-attachment-id=\"6545\" data-permalink=\"https:\/\/physioblogandreasbjerregaard.com\/2016\/01\/09\/travelling-sports-medicine-guidelines-for-illness-and-jet-lag\/skaermbillede-2016-01-09-kl-14-55-26\/\" data-orig-file=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-01-09-kl-14-55-26.png\" data-orig-size=\"880,472\" 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;0&quot;}\" data-image-title=\"Sk\u00e6rmbillede 2016-01-09 kl. 14.55.26\" data-image-description=\"\" data-medium-file=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-01-09-kl-14-55-26.png?w=300\" data-large-file=\"https:\/\/andreasbjerregaard.files.wordpress.com\/2016\/01\/skc3a6rmbillede-2016-01-09-kl-14-55-26.png?w=825\" \/><\/a><figcaption id=\"caption-attachment-6545\" class=\"wp-caption-text\">Clinical guidelines<\/figcaption><\/figure>\n<p><strong>Clinical guidelines: Advice to reduce illness in the travelling athlete<\/strong><\/p>\n<p>Be aware of the higher risk periods for illness (? It is the destination not the travel) 2. Knowledge of expected illness and types 3. Travelling: \u2022 Know the destination (altitude, pollution, allergens, food) \u2022 Medical screening of athletes (respiratory illness, allergies, past history of illness, dermatological screening) \u2022 Vaccinate \/ chemoprophylaxis \u2022 Hand sanitizers \u2022 Avoid hand shaking \u2022 ? Probiotics 4. Planning of medical support \u2013 medical kit, nutrition, fluids 5. Establish contact with medical colleagues\/services in destination countries 6. Educate athletes \u2022 Foods \u2013 e.g. bottled water, unpeeled fruits \u2022 Report symptoms early (isolation) \u2022 Personal hygiene (e.g. hand washing \/ sanitizers)<\/p>\n<div class=\"embed-soundcloud\"><iframe title=\"Ivan Vicelich by F-MARC\" src=\"https:\/\/w.soundcloud.com\/player\/?visual=true&amp;url=https%3A%2F%2Fapi.soundcloud.com%2Ftracks%2F243855520&amp;show_artwork=true&amp;maxwidth=825&amp;maxheight=1000&amp;dnt=1\" width=\"825\" height=\"400\" frameborder=\"no\" scrolling=\"no\" data-mce-fragment=\"1\"><\/iframe><\/div>\n<p><a href=\"http:\/\/www.chronobiology.ch\/wp-content\/uploads\/publications\/2007_10.pdf\">Coping with jet-lag: A Position Statement for the European College of Sport Science<\/a><\/p>\n<p><a href=\"http:\/\/cid.oxfordjournals.org\/content\/58\/10\/1347.long\">Illness in Travelers Returned From Brazil: The GeoSentinel Experience and Implications for the 2014 FIFA World Cup and the 2016 Summer Olympics<\/a><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Travelling sports medicine. Guidelines for illness and\u00a0jet-lag Jet lag \u2013 Introduction &nbsp; \u201cJet lag\u201d occurs as a result of travel across several time zones Definition of \u201cJet lag\u201d: A transient clinical syndrome (collection of symptoms) that occurs in response to a disruption of normal biological rhythms and classically results in non-specific symptoms \u2022 Develops in most individuals when they travel across three or more time zones Characterized by two phases: De-synchronization phase: development of circadian dysrhythmia Disruption (de-synchronization) of the normal biological clock (circadian rhythms) by external cues (light and dark cycles) \u2013 crossing several time zones rapidly (few hours e.g. intercontinental flights) affects circadian rhythms \u2013 external cues of the previous time zone have to be adjusted to the new time zone \u2013 Development of \u201cjet lag\u201d Resynchronization phase: adaptation to the new time zone Resynchronization \u2013 Occurs over a few days (factors to be discussed) \u2013 Re-setting of circadian rhythms \u2013 Correlates with the resolution of the symptoms of jet lag.\u00a0More time zones crossed, the longer it takes to resynchronize the circadian rhythms \u2013 Rule of thumb \u2013 it takes approximately 1 day per time zone crossed to resynchronize Basic physiology of circadian rhythms An inherent \u201cbody clock\u201d is situated at the base of the Hypothalamus (in the suprachiasmatic nuclei) The body clock regulates the body\u2019s normal rhythm \u2013 24 hours long (\u201ccircadian rhythm\u201d) Rhythm \u2013 implies that the body clock has to be continually \u201cadjusted\u201d to be in synchrony with the day\u2019s 24-hour solar day Synchrony is achieved by \u201czeitgebers\u201d (time givers). There is an inherent periodicity of 24 to 26 hours, and exists in a number of physiological systems in the body Function \u2013 internal time indicators for the body Circadian rhythms are important in the normal regulation of physical and psychological parameters such as body temperature, blood cortisol levels, and alertness (sleep and wake cycle) Symptoms of Jet lag \u2022 General malaise \u2022 Headaches \u2022 Insomnia \u2022 Fatigue \u2022 Lethargy \u2022 Apathy \u2022 Dizziness \u2022 Non-specific gastrointestinal distress \u2022 Reduced appetite \u2022 Poor mental and psychological task performance \u2022 Reduced athletic performance Clinical guidelines Clinical guidelines: Advice to reduce illness in the travelling athlete Be aware of the higher risk periods for illness (? It is the destination not the travel) 2. Knowledge of expected illness and types 3. Travelling: \u2022 Know the destination (altitude, pollution, allergens, food) \u2022 Medical screening of athletes (respiratory illness, allergies, past history of illness, dermatological screening) \u2022 Vaccinate \/ chemoprophylaxis \u2022 Hand sanitizers \u2022 Avoid hand shaking \u2022 ? Probiotics 4. Planning of medical support \u2013 medical kit, nutrition, fluids 5. Establish contact with medical colleagues\/services in destination countries 6. Educate athletes \u2022 Foods \u2013 e.g. bottled water, unpeeled fruits \u2022 Report symptoms early (isolation) \u2022 Personal hygiene (e.g. hand washing \/ sanitizers) Coping with jet-lag: A Position Statement for the European College of Sport Science Illness in Travelers Returned From Brazil: The GeoSentinel Experience and Implications for the 2014 FIFA World Cup and the 2016 Summer Olympics &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":1800,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""},"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[14],"tags":[396,369],"class_list":["post-1797","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-travel","tag-jetlag","tag-travel"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":7}},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"Travelling sports medicine. 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