{"id":39894,"date":"2022-05-13T13:34:08","date_gmt":"2022-05-13T20:34:08","guid":{"rendered":"https:\/\/www.avawomen.com\/avaworld\/?p=39894"},"modified":"2022-05-24T14:55:43","modified_gmt":"2022-05-24T21:55:43","slug":"bbt-wearable","status":"publish","type":"post","link":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/","title":{"rendered":"Wearable BBT: Is it just as accurate as oral BBT?"},"content":{"rendered":"<p data-renderer-start-pos=\"1\">If you&#8217;ve ever struggled to remember to take your temperature when tracking ovulation, you may have wondered whether it&#8217;s possible to track your <a href=\"https:\/\/www.avawomen.com\/avaworld\/what-is-basal-body-temperature\/\">basal body temperature<\/a> (BBT) with a wearable like the <a href=\"http:\/\/avawomen.com\/fertility\">Ava bracelet<\/a>. But how does wearable temperature compare to oral temperature?<\/p>\n<p data-renderer-start-pos=\"1\">It turns out that Ava&#8217;s wrist skin temperature (Ava-WST) comes out on top. That\u2019s because the Ava bracelet is more sensitive than oral temperature in detecting <a href=\"https:\/\/www.avawomen.com\/avaworld\/what-is-ovulation\/\">ovulation<\/a>, according to our peer reviewed paper published in the <a class=\"sc-jKJlTe dPfAtb\" title=\"https:\/\/www.jmir.org\/2021\/6\/e20710\" href=\"https:\/\/www.jmir.org\/2021\/6\/e20710\" data-renderer-mark=\"true\">Journal of Medical Internet Research<\/a>.<\/p>\n<p data-renderer-start-pos=\"364\">The study, which was the first to compare wrist skin temperature to BBT in detecting ovulation, found that Ava-WST had a higher true positive rate than BBT: Ava was able to identify ovulatory temperature shifts that BBT missed.<\/p>\n<p data-renderer-start-pos=\"594\">Typically, tests with a higher true positive rate (also called sensitivity) also have a higher false positive rate (resulting in lower specificity) and this was the case here: Ava-WST misidentified some ovulatory cycles that BBT did not misidentify. Ava-WST\u2019s higher sensitivity and lower specificity makes it particularly well suited to women planning a pregnancy, since it was less likely to miss a true <a href=\"https:\/\/www.avawomen.com\/avaworld\/when-to-take-ovulation-test\/\">positive ovulation<\/a>.<\/p>\n<h2 data-renderer-start-pos=\"594\">The Study: Wearable BBT vs Oral BBT<\/h2>\n<p data-renderer-start-pos=\"1032\">The prospective study included 193 cycles collected from 57 healthy women. Participants wore the Ava bracelet, a wearable BBT tracker, nightly. They also measured BBT orally and immediately upon waking using the Lady-Comp digital thermometer. An at-home luteinizing hormone test was used as the reference for ovulation.<\/p>\n<p data-renderer-start-pos=\"1321\">The most important findings from the study:<\/p>\n<ul class=\"ak-ul\" data-indent-level=\"1\">\n<li>\n<p data-renderer-start-pos=\"1368\">Ava-WST was more sensitive than BBT in detecting an ovulatory temperature shift (sensitivity 0.62 vs 0.23; P&lt;.001<span id=\"16c7ca14-eb19-4575-98d3-7db1c7efc1ff\" data-renderer-mark=\"true\" data-mark-type=\"annotation\" data-mark-annotation-type=\"inlineComment\" data-id=\"16c7ca14-eb19-4575-98d3-7db1c7efc1ff\">)<\/span><\/p>\n<\/li>\n<li>\n<p data-renderer-start-pos=\"1486\">Ava-WST had a higher true-positive rate (54.9% vs 20.2%) for detecting ovulation; however, it also had a higher false-positive rate (8.8% vs 3.6%), resulting in lower specificity (0.26 vs 0.70; P=.002).*<\/p>\n<\/li>\n<li>\n<p data-renderer-start-pos=\"1693\">Ava-WST had a greater increase during the luteal phase compared with BBT (range of increase: 0.50 \u00b0C vs 0.20 \u00b0C). Ava-WST increased in a steeper and more continuous manner during the post-ovulatory\/luteal phase<\/p>\n<\/li>\n<li>\n<p data-renderer-start-pos=\"1907\">Ava-WST had a greater and more rapid decrease during the menstrual phase (from 36.13 \u00b0C to 35.80 \u00b0C) than BBT (from 36.31 \u00b0C to 36.27 \u00b0C).<\/p>\n<\/li>\n<\/ul>\n<p data-renderer-start-pos=\"2049\"><span style=\"font-size: 10pt;\">*While \u201ctrue positive rate\u201d and \u201csensitivity\u201d are often used synonymously, this paper used slightly different definitions for the two terms. \u201cTrue positive rate\u201d in the paper refers to the proportion of correctly identified ovulatory cycles out of all cycles (ovulatory and anovulatory). \u201cSensitivity\u201d refers to the proportion of correctly identified ovulatory cycles out of all ovulatory cycles.\u00a0<\/span><\/p>\n<h2 data-renderer-start-pos=\"2049\">Tracking Fertility with Temperature<\/h2>\n<p data-renderer-start-pos=\"2485\">Human body temperature follows a circadian rhythm, meaning it varies over the course of a day, reaching a nocturnal minimum. In women with ovulatory menstrual cycles, this circadian temperature pattern is superimposed on a menstrual temperature pattern. Temperature increases during the post-ovulatory luteal phase compared with the pre-ovulatory follicular phase. In addition, temperature is modulated by lifestyle factors such as physical activity, meals, sleep, and ambient temperature.<\/p>\n<p data-renderer-start-pos=\"2976\">As a practical matter, it can be challenging to disentangle circadian, lifestyle, and menstrual-related effects on temperature. As a daily point measurement, BBT curves are sensitive to missing values and the precise time of measurement; an ovulatory temperature shift may go undetected because a rise in body temperature may not have occurred yet at the time of measurement.<\/p>\n<h2 data-renderer-start-pos=\"2976\">Wearable BBT versus Oral BBT: What&#8217;s the Difference?<\/h2>\n<p data-renderer-start-pos=\"3413\">There are a number of important differences between BBT and Ava-WST, some of which make Ava-WST better suited to detecting ovulatory temperature shifts:<\/p>\n<div class=\"sc-chPdSV gWxTLm\">\n<div class=\"sc-kgoBCf bnPMnF\">\n<div class=\"pm-table-container sc-kGXeez eIIwaK\" data-layout=\"default\"><\/div>\n<\/div>\n<\/div>\n<div class=\"pm-table-container sc-kpOJdX kAzjOl\" data-layout=\"default\">\n<div class=\"pm-table-wrapper\">\n<table data-number-column=\"false\">\n<colgroup>\n<col \/>\n<col \/>\n<col \/><\/colgroup>\n<tbody>\n<tr>\n<th class=\"ak-renderer-tableHeader-sortable-column\" colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\" aria-sort=\"none\">\n<div class=\"ak-renderer-tableHeader-sortable-column__button\" tabindex=\"0\" role=\"button\" aria-disabled=\"false\">\n<figure class=\"ak-renderer-tableHeader-sorting-icon ak-renderer-tableHeader-sorting-icon__no-order\" aria-hidden=\"true\">\n<div role=\"presentation\">\n<figure class=\"sc-cSHVUG fawPjw\">\n<div class=\"sorting-icon-svg__no_order table-sorting-icon-inactive sc-kAzzGY cJlpxs\"><\/div>\n<\/figure>\n<\/div>\n<\/figure>\n<\/div>\n<\/th>\n<th class=\"ak-renderer-tableHeader-sortable-column\" colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\" aria-sort=\"none\">\n<div class=\"ak-renderer-tableHeader-sortable-column__button\" tabindex=\"0\" role=\"button\" aria-disabled=\"false\">\n<p data-renderer-start-pos=\"3574\"><strong data-renderer-mark=\"true\">Ava-WST<\/strong><\/p>\n<figure class=\"ak-renderer-tableHeader-sorting-icon ak-renderer-tableHeader-sorting-icon__no-order\" aria-hidden=\"true\">\n<div role=\"presentation\">\n<figure class=\"sc-cSHVUG fawPjw\">\n<div class=\"sorting-icon-svg__no_order table-sorting-icon-inactive sc-kAzzGY cJlpxs\"><\/div>\n<\/figure>\n<\/div>\n<\/figure>\n<\/div>\n<\/th>\n<th class=\"ak-renderer-tableHeader-sortable-column\" colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\" aria-sort=\"none\">\n<div class=\"ak-renderer-tableHeader-sortable-column__button\" tabindex=\"0\" role=\"button\" aria-disabled=\"false\">\n<p data-renderer-start-pos=\"3585\"><strong data-renderer-mark=\"true\">BBT<\/strong><\/p>\n<figure class=\"ak-renderer-tableHeader-sorting-icon ak-renderer-tableHeader-sorting-icon__no-order\" aria-hidden=\"true\">\n<div role=\"presentation\">\n<figure class=\"sc-cSHVUG fawPjw\">\n<div class=\"sorting-icon-svg__no_order table-sorting-icon-inactive sc-kAzzGY cJlpxs\"><\/div>\n<\/figure>\n<\/div>\n<\/figure>\n<\/div>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3594\"><strong>Physical location<\/strong><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3615\">Wrist skin<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3630\">Oral<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3640\"><strong>Timescale of measurement<\/strong><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3668\">Continuous nightly measurement<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3703\"><span id=\"a3179905-1029-498e-8c09-f142c9bd8979\" data-renderer-mark=\"true\" data-mark-type=\"annotation\" data-mark-annotation-type=\"inlineComment\" data-id=\"a3179905-1029-498e-8c09-f142c9bd8979\">Point measurement<\/span> immediately after waking<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3751\"><strong>User involvement<\/strong><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3771\">Temperature taken passively, without user involvement<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3828\">Temperature taken manually by user<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3868\"><strong><span id=\"70f086bb-8e0c-4491-a9fb-a67f27c367ae\" data-renderer-mark=\"true\" data-mark-type=\"annotation\" data-mark-annotation-type=\"inlineComment\" data-id=\"70f086bb-8e0c-4491-a9fb-a67f27c367ae\">Absolute value range<\/span><\/strong><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3892\">91 \u2013 98 degrees Fahrenheit<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3922\"><a class=\"sc-jKJlTe dPfAtb\" title=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC5689497\/\" href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC5689497\/\" data-renderer-mark=\"true\">97 \u2013 99 degrees Fahrenheit<\/a><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3954\"><strong>Magnitude of increase after ovulation<\/strong><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"3995\">0.50 \u00b0C<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\" data-colwidth=\"226.67\">\n<p data-renderer-start-pos=\"4006\">0.20 \u00b0C<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p data-renderer-start-pos=\"4018\">The different modes of measurement as well as the different circadian rhythms of Ava-WST and BBT might explain the different performance of the two methods for identifying ovulation.<\/p>\n<p data-renderer-start-pos=\"4203\">Oral BBT decreases continuously during sleep, reaching a nadir around 5AM, then rising sharply after waking. Point measurements such as BBT are susceptible to variations in waking times and compliance because a single measurement is located on the sliding scale of the circadian rhythm.<\/p>\n<p data-renderer-start-pos=\"4493\">In contrast, the circadian rhythm of a wearable BBT tracker like Ava features a sharp increase before lights off, a plateau at a higher temperature during sleep, and then a sharp drop immediately after rising. Sleep propensity is accompanied by an increased skin blood flow and less cold-induced vasoconstriction, particularly in the distal skin areas that are most strongly involved in the regulation of heat loss, thus increasing the skin temperature. Once awake, cold-induced vasoconstriction is restored, thereby decreasing the skin temperature.<\/p>\n<p data-renderer-start-pos=\"5021\">Ava-WST excludes the first 90 and last 30 minutes of recorded data, allowing it to capture the nocturnal steady state when temperature is maintained at a high level. This removed much of the effect of circadian rhythm and allowed the temperature changes to reflect mostly menstrual rhythm.<\/p>\n<h2 data-renderer-start-pos=\"5021\">More Than Just Temperature<\/h2>\n<p data-renderer-start-pos=\"5380\">While this study looked at the performance of temperature in isolation from other parameters, in the real world, Ava-WST and BBT are integrated into more complex systems that increase their accuracy in detecting ovulation, as well as their overall utility for tracking fertility.<\/p>\n<p data-renderer-start-pos=\"5662\">The wearable BBT was recorded by the <a href=\"http:\/\/avawomen.com\">Ava bracelet<\/a>, which also measures heart rate, heart rate variability, breathing rate, and <span id=\"ba28f0af-3924-46c3-978b-72a41c0d3642\" data-renderer-mark=\"true\" data-mark-type=\"annotation\" data-mark-annotation-type=\"inlineComment\" data-id=\"ba28f0af-3924-46c3-978b-72a41c0d3642\">skin perfusion<\/span>. This study looked only at the performance of temperature, but in the real world, the device makes <a href=\"https:\/\/www.avawomen.com\/avaworld\/ava-algorithm\/\">fertility predictions based on a machine learning algorithm<\/a> that incorporates multiple physiological parameters, improving its accuracy. The Ava bracelet was shown in <a class=\"sc-jKJlTe dPfAtb\" title=\"https:\/\/www.jmir.org\/2019\/4\/e13404\/\" href=\"https:\/\/www.jmir.org\/2019\/4\/e13404\/\" data-renderer-mark=\"true\">prior research<\/a> to detect the fertile window of the menstrual cycle with <a href=\"https:\/\/www.avawomen.com\/avaworld\/ava-publishes-peer-reviewed-clinical-paper\/\">90 percent accuracy<\/a>.<\/p>\n<p data-renderer-start-pos=\"6155\">Interpreting BBT alongside other fertility signs such as <a href=\"https:\/\/www.avawomen.com\/avaworld\/hidden-messages-cervical-mucus\/\">cervical mucus<\/a>, cycle history, and <a href=\"https:\/\/www.avawomen.com\/avaworld\/ovulation-tests\/\">LH tests<\/a> can help users overcome ambiguity about the day of ovulation, <span id=\"a1282e62-e9c3-416b-bb25-650ac9a4e3d2\" data-renderer-mark=\"true\" data-mark-type=\"annotation\" data-mark-annotation-type=\"inlineComment\" data-id=\"a1282e62-e9c3-416b-bb25-650ac9a4e3d2\">improving the performance compared to relying on BBT alone<\/span>.<\/p>\n<p data-renderer-start-pos=\"6375\">For example, the symptothermal method of fertility tracking, which combines BBT measurement and cervical mucus observations, was evaluated as a contraceptive in <a class=\"sc-jKJlTe dPfAtb\" title=\"https:\/\/academic.oup.com\/humrep\/article\/22\/5\/1310\/2914315?login=true\" href=\"https:\/\/academic.oup.com\/humrep\/article\/22\/5\/1310\/2914315?login=true\" data-renderer-mark=\"true\">one study<\/a>. The study found that women who abstained from sex during the fertile window defined by the method had an unintended pregnancy rate of 0.43%.<\/p>\n<p data-renderer-start-pos=\"6690\">Temperature is a lagging indicator of fertility; the <a href=\"https:\/\/www.avawomen.com\/avaworld\/how-to-use-basal-body-temperature-to-determine-ovulation\/\">observable rise in temperature<\/a> occurs only after the fertile window is closed for the current menstrual cycle. Tracking leading indicators of fertility\u2014LH and cervical mucus in the case of fertility awareness based method, or a multi-parameter machine learning algorithm in the case of the Ava bracelet\u2014is necessary for real time detection of fertile days.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you&#8217;ve ever struggled to remember to take your temperature when tracking ovulation, you may [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":39895,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[890,772,900,33],"tags":[87,167],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v17.3 (Yoast SEO v18.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Wearable BBT: Is it just as accurate as oral BBT? - Ava<\/title>\n<meta name=\"description\" content=\"Can you track BBT with a wearable? A new study finds that wrist skin temperature is more sensitive than oral BBT for detecting ovulation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Wearable BBT: Is it just as accurate as oral BBT?\" \/>\n<meta property=\"og:description\" content=\"Can you track BBT with a wearable? A new study finds that wrist skin temperature is more sensitive than oral BBT for detecting ovulation.\" \/>\n<meta property=\"og:url\" content=\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/\" \/>\n<meta property=\"og:site_name\" content=\"Ava\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/avabracelet\" \/>\n<meta property=\"article:published_time\" content=\"2022-05-13T20:34:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-05-24T21:55:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/avablog-assets-production.s3.amazonaws.com\/wp-offloaded-content\/wearable-BBT-thermometer.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"928\" \/>\n\t<meta property=\"og:image:height\" content=\"606\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@avawomen\" \/>\n<meta name=\"twitter:site\" content=\"@avawomen\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Lindsay Meisel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#organization\",\"name\":\"Ava Women\",\"url\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/\",\"sameAs\":[\"https:\/\/www.facebook.com\/avabracelet\",\"https:\/\/instagram.com\/avawomen\/\",\"https:\/\/www.linkedin.com\/company\/ava-ag\",\"https:\/\/www.youtube.com\/channel\/UCZ1BceGFRgHo0kIZGaRWHsQ\",\"https:\/\/www.pinterest.com\/avawomen\/\",\"https:\/\/twitter.com\/avawomen\"],\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.avawomen.com\/avaworld\/wp-content\/uploads\/2015\/12\/Logo_Ava_black_violet_rgb1.png\",\"contentUrl\":\"https:\/\/www.avawomen.com\/avaworld\/wp-content\/uploads\/2015\/12\/Logo_Ava_black_violet_rgb1.png\",\"width\":300,\"height\":80,\"caption\":\"Ava Women\"},\"image\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/logo\/image\/\"}},{\"@type\":\"WebSite\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#website\",\"url\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/\",\"name\":\"Ava\",\"description\":\"Fertility Tracker\",\"publisher\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#primaryimage\",\"url\":\"https:\/\/avablog-assets-production.s3.amazonaws.com\/wp-offloaded-content\/wearable-BBT-thermometer.jpeg\",\"contentUrl\":\"https:\/\/avablog-assets-production.s3.amazonaws.com\/wp-offloaded-content\/wearable-BBT-thermometer.jpeg\",\"width\":928,\"height\":606,\"caption\":\"wearable BBT thermometer\"},{\"@type\":\"WebPage\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#webpage\",\"url\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/\",\"name\":\"Wearable BBT: Is it just as accurate as oral BBT? - Ava\",\"isPartOf\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#primaryimage\"},\"datePublished\":\"2022-05-13T20:34:08+00:00\",\"dateModified\":\"2022-05-24T21:55:43+00:00\",\"description\":\"Can you track BBT with a wearable? A new study finds that wrist skin temperature is more sensitive than oral BBT for detecting ovulation.\",\"breadcrumb\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"http:\/\/www.avawomen.com\/avaworld\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Wearable BBT: Is it just as accurate as oral BBT?\"}]},{\"@type\":\"Article\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#article\",\"isPartOf\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#webpage\"},\"author\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/person\/61dc7fd2b260b5e02e4e7daa06a2ade9\"},\"headline\":\"Wearable BBT: Is it just as accurate as oral BBT?\",\"datePublished\":\"2022-05-13T20:34:08+00:00\",\"dateModified\":\"2022-05-24T21:55:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#webpage\"},\"wordCount\":1081,\"publisher\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#organization\"},\"image\":{\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/avablog-assets-production.s3.amazonaws.com\/wp-offloaded-content\/wearable-BBT-thermometer.jpeg\",\"keywords\":[\"BBT\",\"tracking your cycle\"],\"articleSection\":[\"Ava Bracelet\",\"Getting Pregnant\",\"Science &amp; clinical studies\",\"Tracking Your Cycle\"],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/person\/61dc7fd2b260b5e02e4e7daa06a2ade9\",\"name\":\"Lindsay Meisel\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/2.gravatar.com\/avatar\/8f1e5715074f222fa2a65a4eba523793?s=96&d=mm&r=g\",\"contentUrl\":\"http:\/\/2.gravatar.com\/avatar\/8f1e5715074f222fa2a65a4eba523793?s=96&d=mm&r=g\",\"caption\":\"Lindsay Meisel\"},\"description\":\"Lindsay Meisel is the Head of Content at Ava. She has over a decade of experience writing about science, technology, and health, with a focus on women's health and the menstrual cycle. Her work has been featured on The Fertility Hour, The Birth Hour, The Breakthrough Journal, and The Rumpus.\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Wearable BBT: Is it just as accurate as oral BBT? - Ava","description":"Can you track BBT with a wearable? A new study finds that wrist skin temperature is more sensitive than oral BBT for detecting ovulation.","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":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/","og_locale":"en_US","og_type":"article","og_title":"Wearable BBT: Is it just as accurate as oral BBT?","og_description":"Can you track BBT with a wearable? A new study finds that wrist skin temperature is more sensitive than oral BBT for detecting ovulation.","og_url":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/","og_site_name":"Ava","article_publisher":"https:\/\/www.facebook.com\/avabracelet","article_published_time":"2022-05-13T20:34:08+00:00","article_modified_time":"2022-05-24T21:55:43+00:00","og_image":[{"width":928,"height":606,"url":"https:\/\/avablog-assets-production.s3.amazonaws.com\/wp-offloaded-content\/wearable-BBT-thermometer.jpeg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@avawomen","twitter_site":"@avawomen","twitter_misc":{"Written by":"Lindsay Meisel","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Organization","@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#organization","name":"Ava Women","url":"http:\/\/www.avawomen.com\/avaworld\/fr\/","sameAs":["https:\/\/www.facebook.com\/avabracelet","https:\/\/instagram.com\/avawomen\/","https:\/\/www.linkedin.com\/company\/ava-ag","https:\/\/www.youtube.com\/channel\/UCZ1BceGFRgHo0kIZGaRWHsQ","https:\/\/www.pinterest.com\/avawomen\/","https:\/\/twitter.com\/avawomen"],"logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/www.avawomen.com\/avaworld\/wp-content\/uploads\/2015\/12\/Logo_Ava_black_violet_rgb1.png","contentUrl":"https:\/\/www.avawomen.com\/avaworld\/wp-content\/uploads\/2015\/12\/Logo_Ava_black_violet_rgb1.png","width":300,"height":80,"caption":"Ava Women"},"image":{"@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/logo\/image\/"}},{"@type":"WebSite","@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#website","url":"http:\/\/www.avawomen.com\/avaworld\/fr\/","name":"Ava","description":"Fertility Tracker","publisher":{"@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"http:\/\/www.avawomen.com\/avaworld\/fr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"ImageObject","inLanguage":"en-US","@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#primaryimage","url":"https:\/\/avablog-assets-production.s3.amazonaws.com\/wp-offloaded-content\/wearable-BBT-thermometer.jpeg","contentUrl":"https:\/\/avablog-assets-production.s3.amazonaws.com\/wp-offloaded-content\/wearable-BBT-thermometer.jpeg","width":928,"height":606,"caption":"wearable BBT thermometer"},{"@type":"WebPage","@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#webpage","url":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/","name":"Wearable BBT: Is it just as accurate as oral BBT? - Ava","isPartOf":{"@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#website"},"primaryImageOfPage":{"@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#primaryimage"},"datePublished":"2022-05-13T20:34:08+00:00","dateModified":"2022-05-24T21:55:43+00:00","description":"Can you track BBT with a wearable? A new study finds that wrist skin temperature is more sensitive than oral BBT for detecting ovulation.","breadcrumb":{"@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/"]}]},{"@type":"BreadcrumbList","@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"http:\/\/www.avawomen.com\/avaworld\/"},{"@type":"ListItem","position":2,"name":"Wearable BBT: Is it just as accurate as oral BBT?"}]},{"@type":"Article","@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#article","isPartOf":{"@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#webpage"},"author":{"@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/person\/61dc7fd2b260b5e02e4e7daa06a2ade9"},"headline":"Wearable BBT: Is it just as accurate as oral BBT?","datePublished":"2022-05-13T20:34:08+00:00","dateModified":"2022-05-24T21:55:43+00:00","mainEntityOfPage":{"@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#webpage"},"wordCount":1081,"publisher":{"@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#organization"},"image":{"@id":"http:\/\/www.avawomen.com\/avaworld\/bbt-wearable\/#primaryimage"},"thumbnailUrl":"https:\/\/avablog-assets-production.s3.amazonaws.com\/wp-offloaded-content\/wearable-BBT-thermometer.jpeg","keywords":["BBT","tracking your cycle"],"articleSection":["Ava Bracelet","Getting Pregnant","Science &amp; clinical studies","Tracking Your Cycle"],"inLanguage":"en-US"},{"@type":"Person","@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/person\/61dc7fd2b260b5e02e4e7daa06a2ade9","name":"Lindsay Meisel","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"http:\/\/www.avawomen.com\/avaworld\/fr\/#\/schema\/person\/image\/","url":"http:\/\/2.gravatar.com\/avatar\/8f1e5715074f222fa2a65a4eba523793?s=96&d=mm&r=g","contentUrl":"http:\/\/2.gravatar.com\/avatar\/8f1e5715074f222fa2a65a4eba523793?s=96&d=mm&r=g","caption":"Lindsay Meisel"},"description":"Lindsay Meisel is the Head of Content at Ava. She has over a decade of experience writing about science, technology, and health, with a focus on women's health and the menstrual cycle. Her work has been featured on The Fertility Hour, The Birth Hour, The Breakthrough Journal, and The Rumpus."}]}},"_links":{"self":[{"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/posts\/39894"}],"collection":[{"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/comments?post=39894"}],"version-history":[{"count":0,"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/posts\/39894\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/media\/39895"}],"wp:attachment":[{"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/media?parent=39894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/categories?post=39894"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.avawomen.com\/avaworld\/wp-json\/wp\/v2\/tags?post=39894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}