{"id":707,"date":"2015-02-02T18:57:02","date_gmt":"2015-02-03T02:57:02","guid":{"rendered":"http:\/\/www.christofteuscher.com\/aagaa\/?p=707"},"modified":"2019-10-08T12:40:54","modified_gmt":"2019-10-08T19:40:54","slug":"resting-heart-rate-overtraining-and-recovery-an-experiment","status":"publish","type":"post","link":"https:\/\/christofteuscher.com\/aagaa\/resting-heart-rate-overtraining-and-recovery-an-experiment\/","title":{"rendered":"Resting heart rate, overtraining, and recovery: an experiment"},"content":{"rendered":"<div class='dropshadowboxes-container ' style='width:auto;'>\r\n                            <div class='dropshadowboxes-drop-shadow dropshadowboxes-rounded-corners dropshadowboxes-inside-and-outside-shadow dropshadowboxes-lifted-both dropshadowboxes-effect-default' style=' border: 1px solid #dddddd; height:; background-color:#ffffff;    '>\r\n                            Update (Oct 2019): This article has become rather outdated. With today&#8217;s wide variety of health monitoring devices (FitBit, Apple Watch, etc.), things have become a lot easier and better.\r\n                            <\/div>\r\n                        <\/div>\n<p>For over a year, I&#8217;ve been measuring my resting heart rate at the same time every morning. I&#8217;m using a simple <a href=\"http:\/\/www.amazon.com\/s\/ref=nb_sb_noss?url=search-alias%3Daps&amp;field-keywords=pulse+oximeter\" target=\"_blank\" rel=\"noopener noreferrer\">pulse oximeter<\/a> for that purpose because it&#8217;s fast and reliable. It&#8217;s also a great gadget to have if you are racing at higher elevations and want to keep an eye on your\u00a0<span class=\"a-list-item\">SpO2 (blood oxygen saturation level)<\/span> to determine if you are acclimatized properly.<\/p>\n<p>Recent research tells us (see also bibliography below) that the average weekly resting heart rate can be an indicator for overreaching and overtraining. The key is not to rely on punctual measures, but to average the daily measures for an entire week. There is simply too much noise in the data otherwise. This method is described in [<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23657173\" target=\"_blank\" rel=\"noopener noreferrer\">1<\/a>]. See also [<a href=\"http:\/\/www.runnersworld.com\/injury-prevention-recovery\/morning-heart-rate-and-functional-overtraining\" target=\"_blank\" rel=\"noopener noreferrer\">2<\/a>] for a more accessible description: &#8220;The key finding (echoing some earlier HRV studies) is that day-to-day measurements are simply too variable to extract reliable information from \u2013 but weekly averages can reliably show significant trends that reveal how your body is responding to the training load.&#8221; [<a href=\"http:\/\/runnersconnect.net\/running-injury-prevention\/overtraining-resting-heart-rate\" target=\"_blank\" rel=\"noopener noreferrer\">4<\/a>] states that &#8220;[t]he research suggests that by itself, your resting heart rate is likely not all that useful of a measurement.&#8221; However, the author only cites old and possibly outdated studies that did not use the method described in [<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23657173\" target=\"_blank\" rel=\"noopener noreferrer\">1<\/a>].<\/p>\n<p>So I was curious to find out if this heart rate business may work for me and started an experiment in Jan 2014.<\/p>\n<p>The plot below shows my weekly mileage (blue bars) and the average weekly resting heart rate (solid red line). I&#8217;ve deliberately left out the y-axis labels because they do not add to the story. As one can see, after big races and training weeks, the average weekly resting heart rate increases, then goes back to the average value within 1-2 weeks because of recovery and resting. Also, one can see that before big races, the average weekly resting heart rate decreases below average due to tapering. That tells me that my tapering is effective, with one exception: the last 100mi race on this plot was likely too close to the 120mi race. It does not look like I was fully recovered by then. That&#8217;s an important lesson for my future race planning.<\/p>\n<p>Another interesting conclusion from this data is that despite a gradually increasing weekly mileage (indicated by the dashed blue line), my\u00a0average weekly resting heart rate was slowly decreasing (dotted red line). I take this as a sign that my body successfully adapts and copes with the additional stress of increasing mileage. How far can I still push the envelope? We shall see.<\/p>\n<p>For statistics freaks: the relationship between the weekly mileage and the average weekly heart rate shows a significant negative correlation, r(41) = 0.38, p = 0.005. Note that this is not a solid statistical analysis. There are several artefacts that would need to be controlled for in a thorough analysis of these time series.<\/p>\n<p>In summary: collecting that data and watching the trends carefully has been a very valuable tool for a beginner like me to spot early signs of short- and long-term overtraining and to determine if I&#8217;m properly recovered for the next epic shit. The data simply allows me to back off if I see worrisome trends. Of course I realize that heart rate does not tell the entire story and that there are many other factors to consider in the way one trains and races.<\/p>\n<p>As a next step, I am interested to find out how the data correlates with (1) the heart rate data during actual runs and (2) with the perceived effort (which is different from the actual effort). As you can tell, I love data and numbers&#8230;<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2015\/02\/hr_stats.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-708\" src=\"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2015\/02\/hr_stats.png?resize=640%2C426&#038;ssl=1\" alt=\"hr_stats\" width=\"640\" height=\"426\" srcset=\"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2015\/02\/hr_stats.png?w=814&amp;ssl=1 814w, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2015\/02\/hr_stats.png?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2015\/02\/hr_stats.png?resize=624%2C415&amp;ssl=1 624w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><strong>Bibliography:<\/strong><\/p>\n<ol>\n<li><a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23657173\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23657173<\/a><\/li>\n<li><a href=\"http:\/\/www.runnersworld.com\/injury-prevention-recovery\/morning-heart-rate-and-functional-overtraining\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.runnersworld.com\/injury-prevention-recovery\/morning-heart-rate-and-functional-overtraining<\/a><\/li>\n<li><a href=\"http:\/\/running.competitor.com\/2014\/06\/training\/think-youre-overtraining-check-your-pulse_63593\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/running.competitor.com\/2014\/06\/training\/think-youre-overtraining-check-your-pulse_63593<\/a><\/li>\n<li><a href=\"http:\/\/runnersconnect.net\/running-injury-prevention\/overtraining-resting-heart-rate\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/runnersconnect.net\/running-injury-prevention\/overtraining-resting-heart-rate<\/a><\/li>\n<li><a href=\"http:\/\/www.humankinetics.com\/excerpts\/excerpts\/monitor-heart-rate-to-avoid-overtraining-and-staleness\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.humankinetics.com\/excerpts\/excerpts\/monitor-heart-rate-to-avoid-overtraining-and-staleness<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>For over a year, I&#8217;ve been measuring my resting heart rate at the same time every morning. I&#8217;m using a simple pulse oximeter for that purpose because it&#8217;s fast and reliable. It&#8217;s also a great gadget to have if you&hellip; <a href=\"https:\/\/christofteuscher.com\/aagaa\/resting-heart-rate-overtraining-and-recovery-an-experiment\/\" class=\"more-link\">Continue Reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"wprm-recipe-roundup-name":"","wprm-recipe-roundup-description":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[19,3],"tags":[236,237,240,242,241,239,238],"class_list":["post-707","post","type-post","status-publish","format-standard","hentry","category-running","category-ultra","tag-heart-rate","tag-hr","tag-overtraining","tag-oximeter","tag-pulse","tag-recovery","tag-training"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Resting heart rate, overtraining, and recovery: an experiment - Christof Teuscher<\/title>\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.christofteuscher.com\/aagaa\/resting-heart-rate-overtraining-and-recovery-an-experiment\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Resting heart rate, overtraining, and recovery: an experiment - Christof Teuscher\" \/>\n<meta property=\"og:description\" content=\"For over a year, I&#8217;ve been measuring my resting heart rate at the same time every morning. 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It's one big loop without any road crossings, no possibilities to resupply, and no easy bailout options.\u00a0Mike Woodmansee created the route as a \"bonus trek\" and long challenge, far from anything\u2026","rel":"","context":"In &quot;adventures&quot;","block_context":{"text":"adventures","link":"https:\/\/christofteuscher.com\/aagaa\/category\/adventures\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/07\/cougar_bridge_out.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/07\/cougar_bridge_out.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/07\/cougar_bridge_out.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/07\/cougar_bridge_out.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/07\/cougar_bridge_out.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/07\/cougar_bridge_out.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":6262,"url":"https:\/\/christofteuscher.com\/aagaa\/news-1st-75mi-steens-traverse-attempt\/","url_meta":{"origin":707,"position":1},"title":"NEWS: 1st 75mi Steens Traverse Attempt","author":"Christof Teuscher","date":"September 19, 2019","format":false,"excerpt":"Mountain is one of Oregon's great scenic and geological wonders, a 30mi long fault-block with a spectacular and rugged east face that rises one vertical mile above the equally spectacular Alvord Desert. Steens Mountain is the largest fault-block mountain in the northern Great Basin. A 59mi (95km) loop road, the\u2026","rel":"","context":"In &quot;adventures&quot;","block_context":{"text":"adventures","link":"https:\/\/christofteuscher.com\/aagaa\/category\/adventures\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/09\/steens_blm.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/09\/steens_blm.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/09\/steens_blm.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/09\/steens_blm.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/09\/steens_blm.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2019\/09\/steens_blm.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":8140,"url":"https:\/\/christofteuscher.com\/aagaa\/report-bear-puts-abrupt-end-to-1st-900mi-idaho-centennial-trail-fkt-attempt\/","url_meta":{"origin":707,"position":2},"title":"REPORT: Bear Puts Abrupt End to 1st 900mi Idaho Centennial Trail FKT Attempt","author":"Christof Teuscher","date":"July 14, 2021","format":false,"excerpt":"On Fri, Jul 2, 2021, at 5:00pm MT, I embarked on a 1st solo and self-supported FKT attempt of the ICT at the Nevada border. See announcement. Unfortunately, the attempt ended abruptly: a bear found, dug up, and completely annihilated one of my resupply caches at mile 321 (near Thunder\u2026","rel":"","context":"In &quot;adventures&quot;","block_context":{"text":"adventures","link":"https:\/\/christofteuscher.com\/aagaa\/category\/adventures\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2021\/07\/ict_closure.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2021\/07\/ict_closure.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2021\/07\/ict_closure.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2021\/07\/ict_closure.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2021\/07\/ict_closure.png?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":7287,"url":"https:\/\/christofteuscher.com\/aagaa\/news-4th-eagles-33-peak-bagging-fkt-attempt\/","url_meta":{"origin":707,"position":3},"title":"NEWS: 4th Eagle\u2019s 33 Peak Bagging FKT Attempt","author":"Christof Teuscher","date":"September 1, 2020","format":false,"excerpt":"For a totally inexplicable reason, I'm now going back for a 4th attempt with a new strategy and a new route. Also, with more food. Dotwatching You can track me at http:\/\/bit.ly\/Eagles33IV\u00a0if you are so inclined to. The planned start is on Wed, Sep 2, 2020. Once again, I will\u2026","rel":"","context":"In &quot;adventures&quot;","block_context":{"text":"adventures","link":"https:\/\/christofteuscher.com\/aagaa\/category\/adventures\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2020\/08\/4th_peak_pics.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2020\/08\/4th_peak_pics.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2020\/08\/4th_peak_pics.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2020\/08\/4th_peak_pics.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2020\/08\/4th_peak_pics.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2020\/08\/4th_peak_pics.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1629,"url":"https:\/\/christofteuscher.com\/aagaa\/1629-2\/","url_meta":{"origin":707,"position":4},"title":"Announcement: Cascades 11-over-10 Challenge Series","author":"Christof Teuscher","date":"November 18, 2015","format":false,"excerpt":"For more info, see:\u00a0https:\/\/christofteuscher.com\/aagaa\/cascades-11-10-challenge-series Facebook page:\u00a0https:\/\/www.facebook.com\/11over10","rel":"","context":"In &quot;adventures&quot;","block_context":{"text":"adventures","link":"https:\/\/christofteuscher.com\/aagaa\/category\/adventures\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":9463,"url":"https:\/\/christofteuscher.com\/aagaa\/news-180mi-unsupported-solo-single-and-out-back-arctic-circle-trail-fkt-attempts\/","url_meta":{"origin":707,"position":5},"title":"NEWS: 180mi unsupported, solo, one-way and out &#038; back Arctic Circle Trail FKT attempts","author":"Christof Teuscher","date":"August 13, 2022","format":false,"excerpt":"(travel permitting) I will attempt both an unsupported one-way (90mi) and out & back (180mi) Fastest Known Time (FKT) of the Arctic Circle Trail (ACT) in Greenland. Unsupported means I will carry all my food and supplies (except water) from the beginning to the end and will not receive any\u2026","rel":"","context":"In &quot;adventures&quot;","block_context":{"text":"adventures","link":"https:\/\/christofteuscher.com\/aagaa\/category\/adventures\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2022\/08\/act_announcement.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2022\/08\/act_announcement.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2022\/08\/act_announcement.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2022\/08\/act_announcement.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2022\/08\/act_announcement.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/christofteuscher.com\/aagaa\/wp-content\/uploads\/2022\/08\/act_announcement.png?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Christof Teuscher","author_link":"https:\/\/christofteuscher.com\/aagaa\/author\/cteusche\/"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/christofteuscher.com\/aagaa\/category\/running\/\" rel=\"category tag\">running<\/a> <a href=\"https:\/\/christofteuscher.com\/aagaa\/category\/ultra\/\" rel=\"category tag\">ultra<\/a>","rttpg_excerpt":"For more info, see:\u00a0https:\/\/christofteuscher.com\/aagaa\/cascades-11-10-challenge-series Facebook page:\u00a0https:\/\/www.facebook.com\/11over10","_links":{"self":[{"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/posts\/707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/comments?post=707"}],"version-history":[{"count":5,"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/posts\/707\/revisions"}],"predecessor-version":[{"id":6319,"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/posts\/707\/revisions\/6319"}],"wp:attachment":[{"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/media?parent=707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/categories?post=707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/christofteuscher.com\/aagaa\/wp-json\/wp\/v2\/tags?post=707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}