<figure class="chartlet-figure" data-viz="chart"><figcaption>Resting heart rate during training</figcaption><svg xmlns="http://www.w3.org/2000/svg" width="800" height="450" viewBox="0 0 800 450" id="chartlet-f879378624b73ac9" role="img" aria-labelledby="chartlet-f879378624b73ac9-title chartlet-f879378624b73ac9-description" class="chartlet-root"><title id="chartlet-f879378624b73ac9-title">Resting heart rate during training</title><desc id="chartlet-f879378624b73ac9-description">Time chart with 33 points from 2026-03-03 to 2026-04-26 and 2 series (Morning reading, Weekly mean). Highest: 65 (Morning reading in 2026-03-03, Morning reading in 2026-03-09). Lowest: 56 (Morning reading in 2026-04-25).</desc><style>.chartlet-root{--chartlet-text:#172033;--chartlet-muted:#344054;--chartlet-grid:#d9dee8;--chartlet-zero:#667085;--chartlet-accent:#2563eb;--chartlet-background:#fff;--chartlet-color-1:#2563eb;--chartlet-color-2:#c2410c;--chartlet-color-3:#475569;--chartlet-color-4:#111827;max-width:100%;height:auto;font-family:Inter,ui-sans-serif,system-ui,sans-serif;color:var(--chartlet-text)}#chartlet-f879378624b73ac9 .chartlet-title{font-size:22px;font-weight:650;fill:var(--chartlet-text)}#chartlet-f879378624b73ac9 .chartlet-label,#chartlet-f879378624b73ac9 .chartlet-tick,#chartlet-f879378624b73ac9 .chartlet-value,#chartlet-f879378624b73ac9 .chartlet-value-inverse,#chartlet-f879378624b73ac9 .chartlet-axis-title{font-size:12px;fill:var(--chartlet-muted)}#chartlet-f879378624b73ac9 .chartlet-value,#chartlet-f879378624b73ac9 .chartlet-value-inverse{font-weight:600}#chartlet-f879378624b73ac9 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.chartlet-line-series-3{stroke:var(--chartlet-color-3)}#chartlet-f879378624b73ac9 .chartlet-line-series-4{stroke:var(--chartlet-color-4)}#chartlet-f879378624b73ac9 .chartlet-point-series-1{fill:var(--chartlet-color-1)}#chartlet-f879378624b73ac9 .chartlet-hit{fill:transparent;stroke:none}#chartlet-f879378624b73ac9 .chartlet-band{stroke:none;fill-opacity:.18}#chartlet-f879378624b73ac9 .chartlet-band-series-1{fill:var(--chartlet-color-1)}#chartlet-f879378624b73ac9 .chartlet-band-series-2{fill:var(--chartlet-color-2)}#chartlet-f879378624b73ac9 .chartlet-band-series-3{fill:var(--chartlet-color-3)}#chartlet-f879378624b73ac9 .chartlet-band-series-4{fill:var(--chartlet-color-4)}#chartlet-f879378624b73ac9 .chartlet-hatch{stroke:none}#chartlet-f879378624b73ac9 .chartlet-hatch-line{stroke-width:1.2;opacity:.75}#chartlet-f879378624b73ac9 .chartlet-line-modeled{stroke-dasharray:7 5}#chartlet-f879378624b73ac9 .chartlet-line-thin{stroke-width:1}#chartlet-f879378624b73ac9 .chartlet-point-series-2{fill:var(--chartlet-color-2)}#chartlet-f879378624b73ac9 .chartlet-point-series-3{fill:var(--chartlet-color-3)}#chartlet-f879378624b73ac9 .chartlet-point-series-4{fill:var(--chartlet-color-4)}#chartlet-f879378624b73ac9 .chartlet-rule{fill:none;stroke:var(--chartlet-zero);stroke-width:1.5;stroke-dasharray:5 4}#chartlet-f879378624b73ac9 .chartlet-rule-label{font-size:12px;font-weight:600;fill:var(--chartlet-text);paint-order:stroke;stroke:var(--chartlet-background);stroke-width:3px;stroke-linejoin:round}</style><line x1="72" y1="414" x2="776" y2="414" class="chartlet-grid"/><text x="62" y="418" text-anchor="end" class="chartlet-tick">54</text><line x1="72" y1="354.667" x2="776" y2="354.667" class="chartlet-grid"/><text x="62" y="358.667" text-anchor="end" class="chartlet-tick">56</text><line x1="72" y1="295.333" x2="776" y2="295.333" class="chartlet-grid"/><text x="62" y="299.333" text-anchor="end" class="chartlet-tick">58</text><line x1="72" y1="236" x2="776" y2="236" class="chartlet-grid"/><text x="62" y="240" text-anchor="end" class="chartlet-tick">60</text><line x1="72" y1="176.667" x2="776" y2="176.667" class="chartlet-grid"/><text x="62" y="180.667" text-anchor="end" class="chartlet-tick">62</text><line x1="72" y1="117.333" x2="776" y2="117.333" class="chartlet-grid"/><text x="62" y="121.333" text-anchor="end" class="chartlet-tick">64</text><line x1="72" y1="58" x2="776" y2="58" class="chartlet-grid"/><text x="62" y="62" text-anchor="end" class="chartlet-tick">66</text><line x1="154.889" y1="58" x2="154.889" y2="414" class="chartlet-grid"/><text x="154.889" y="438" text-anchor="middle" class="chartlet-tick">2026-03-09</text><line x1="334.296" y1="58" x2="334.296" y2="414" class="chartlet-grid"/><text x="334.296" y="438" text-anchor="middle" class="chartlet-tick">2026-03-23</text><line x1="513.704" y1="58" x2="513.704" y2="414" class="chartlet-grid"/><text x="513.704" y="438" text-anchor="middle" class="chartlet-tick">2026-04-06</text><line x1="693.111" y1="58" x2="693.111" y2="414" class="chartlet-grid"/><text x="693.111" y="438" text-anchor="middle" class="chartlet-tick">2026-04-20</text><text x="72" y="38" text-anchor="start" class="chartlet-axis-title">Beats per minute</text><circle cx="84" cy="7" r="4" class="chartlet-point chartlet-point-series-1"/><text x="104" y="11" text-anchor="start" class="chartlet-legend">Morning reading</text><polyline points="219.76,7 243.76,7" class="chartlet-line chartlet-line-series-2"/><text x="251.76" y="11" text-anchor="start" class="chartlet-legend">Weekly mean</text><circle cx="78" cy="87.667" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-03 – Morning reading: 65</title></circle><circle cx="90.815" cy="147" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-04 – Morning reading: 63</title></circle><circle cx="116.444" cy="117.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-06 – Morning reading: 64</title></circle><circle cx="154.889" cy="87.667" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-09 – Morning reading: 65</title></circle><circle cx="167.704" cy="176.667" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-10 – Morning reading: 62</title></circle><circle cx="193.333" cy="206.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-12 – Morning reading: 61</title></circle><circle cx="231.778" cy="147" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-15 – Morning reading: 63</title></circle><circle cx="244.593" cy="176.667" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-16 – Morning reading: 62</title></circle><circle cx="270.222" cy="236" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-18 – Morning reading: 60</title></circle><circle cx="308.667" cy="147" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-21 – Morning reading: 63</title></circle><circle cx="334.296" cy="176.667" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-23 – Morning reading: 62</title></circle><circle cx="347.111" cy="236" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-24 – Morning reading: 60</title></circle><circle cx="385.556" cy="147" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-27 – Morning reading: 63</title></circle><circle cx="411.185" cy="236" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-29 – Morning reading: 60</title></circle><circle cx="436.815" cy="236" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-03-31 – Morning reading: 60</title></circle><circle cx="475.259" cy="206.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-03 – Morning reading: 61</title></circle><circle cx="500.889" cy="295.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-05 – Morning reading: 58</title></circle><circle cx="513.704" cy="236" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-06 – Morning reading: 60</title></circle><circle cx="552.148" cy="295.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-09 – Morning reading: 58</title></circle><circle cx="577.778" cy="206.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-11 – Morning reading: 61</title></circle><circle cx="603.407" cy="295.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-13 – Morning reading: 58</title></circle><circle cx="641.852" cy="295.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-16 – Morning reading: 58</title></circle><circle cx="667.481" cy="265.667" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-18 – Morning reading: 59</title></circle><circle cx="693.111" cy="325" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-20 – Morning reading: 57</title></circle><circle cx="731.556" cy="295.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-23 – Morning reading: 58</title></circle><circle cx="757.185" cy="354.667" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-25 – Morning reading: 56</title></circle><circle cx="770" cy="295.333" r="4" class="chartlet-point chartlet-point-series-1"><title>2026-04-26 – Morning reading: 58</title></circle><polyline points="90.815,117.333 180.519,155.9 270.222,176.667 359.926,185.567 449.63,227.1 539.333,259.733 629.037,286.433 718.741,325" class="chartlet-line chartlet-line-series-2"/><circle cx="90.815" cy="117.333" r="4" class="chartlet-point chartlet-point-series-2"><title>2026-03-04 – Weekly mean: 64</title></circle><circle cx="180.519" cy="155.9" r="4" class="chartlet-point chartlet-point-series-2"><title>2026-03-11 – Weekly mean: 62.7</title></circle><circle cx="270.222" cy="176.667" r="4" class="chartlet-point chartlet-point-series-2"><title>2026-03-18 – Weekly mean: 62</title></circle><circle cx="359.926" cy="185.567" r="4" class="chartlet-point chartlet-point-series-2"><title>2026-03-25 – Weekly mean: 61.7</title></circle><circle cx="449.63" cy="227.1" r="4" class="chartlet-point chartlet-point-series-2"><title>2026-04-01 – Weekly mean: 60.3</title></circle><circle cx="539.333" cy="259.733" r="4" class="chartlet-point chartlet-point-series-2"><title>2026-04-08 – Weekly mean: 59.2</title></circle><circle cx="629.037" cy="286.433" r="4" class="chartlet-point chartlet-point-series-2"><title>2026-04-15 – Weekly mean: 58.3</title></circle><circle cx="718.741" cy="325" r="4" class="chartlet-point chartlet-point-series-2"><title>2026-04-22 – Weekly mean: 57</title></circle></svg><p class="chartlet-source">Source: Sample data</p><details class="chartlet-data" data-viz-text><summary>Show chart data</summary><table><caption>Data for Resting heart rate during training</caption><thead><tr><th scope="col">Time</th><th scope="col">Morning reading</th><th scope="col">Weekly mean</th></tr></thead><tbody><tr><th scope="row">2026-03-03</th><td>65</td><td>Missing</td></tr><tr><th scope="row">2026-03-04</th><td>63</td><td>64</td></tr><tr><th scope="row">2026-03-06</th><td>64</td><td>Missing</td></tr><tr><th scope="row">2026-03-09</th><td>65</td><td>Missing</td></tr><tr><th scope="row">2026-03-10</th><td>62</td><td>Missing</td></tr><tr><th scope="row">2026-03-11</th><td>Missing</td><td>62.7</td></tr><tr><th scope="row">2026-03-12</th><td>61</td><td>Missing</td></tr><tr><th scope="row">2026-03-15</th><td>63</td><td>Missing</td></tr><tr><th scope="row">2026-03-16</th><td>62</td><td>Missing</td></tr><tr><th scope="row">2026-03-18</th><td>60</td><td>62</td></tr><tr><th scope="row">2026-03-21</th><td>63</td><td>Missing</td></tr><tr><th scope="row">2026-03-23</th><td>62</td><td>Missing</td></tr><tr><th scope="row">2026-03-24</th><td>60</td><td>Missing</td></tr><tr><th scope="row">2026-03-25</th><td>Missing</td><td>61.7</td></tr><tr><th scope="row">2026-03-27</th><td>63</td><td>Missing</td></tr><tr><th scope="row">2026-03-29</th><td>60</td><td>Missing</td></tr><tr><th scope="row">2026-03-31</th><td>60</td><td>Missing</td></tr><tr><th scope="row">2026-04-01</th><td>Missing</td><td>60.3</td></tr><tr><th scope="row">2026-04-03</th><td>61</td><td>Missing</td></tr><tr><th scope="row">2026-04-05</th><td>58</td><td>Missing</td></tr><tr><th scope="row">2026-04-06</th><td>60</td><td>Missing</td></tr><tr><th scope="row">2026-04-08</th><td>Missing</td><td>59.2</td></tr><tr><th scope="row">2026-04-09</th><td>58</td><td>Missing</td></tr><tr><th scope="row">2026-04-11</th><td>61</td><td>Missing</td></tr><tr><th scope="row">2026-04-13</th><td>58</td><td>Missing</td></tr><tr><th scope="row">2026-04-15</th><td>Missing</td><td>58.3</td></tr><tr><th scope="row">2026-04-16</th><td>58</td><td>Missing</td></tr><tr><th scope="row">2026-04-18</th><td>59</td><td>Missing</td></tr><tr><th scope="row">2026-04-20</th><td>57</td><td>Missing</td></tr><tr><th scope="row">2026-04-22</th><td>Missing</td><td>57</td></tr><tr><th scope="row">2026-04-23</th><td>58</td><td>Missing</td></tr><tr><th scope="row">2026-04-25</th><td>56</td><td>Missing</td></tr><tr><th scope="row">2026-04-26</th><td>58</td><td>Missing</td></tr></tbody></table></details></figure>