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Stair climbing - Wikipedia

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title="Climbing">climbing</a> of a <a href="/wiki/Flight_of_stairs" class="mw-redirect" title="Flight of stairs">flight of stairs</a>. It is often described as a "low-impact" <a href="/wiki/Exercise" title="Exercise">exercise</a>, often for people who have recently started trying to get in shape. A common exhortation in <a href="/wiki/Health" title="Health">health</a> <a href="/wiki/Popular_culture" title="Popular culture">pop culture</a> is "Take the stairs, not the <a href="/wiki/Elevator" title="Elevator">elevator</a>". </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Force_Plate-Mounted_Stairs_by_AMTI.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Force_Plate-Mounted_Stairs_by_AMTI.jpg/220px-Force_Plate-Mounted_Stairs_by_AMTI.jpg" decoding="async" width="220" height="146" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Force_Plate-Mounted_Stairs_by_AMTI.jpg/330px-Force_Plate-Mounted_Stairs_by_AMTI.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a8/Force_Plate-Mounted_Stairs_by_AMTI.jpg/440px-Force_Plate-Mounted_Stairs_by_AMTI.jpg 2x" data-file-width="3008" data-file-height="2000" /></a><figcaption>The Force Plate-Mounted Stairs by AMTI are primarily used for research into gait disorders when a subject is walking up and down a set of stairs. Stair ambulation is an essential component of mobility in individuals, making its study critical to determining appropriate clinical intervention.</figcaption></figure> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Energy_expenditure">Energy expenditure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stair_climbing&amp;action=edit&amp;section=1" title="Edit section: Energy expenditure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In one study based on mean oxygen uptake and <a href="/wiki/Heart_rate" title="Heart rate">heart rate</a>, researchers estimated that ascending a 15&#160;cm (5.9 inches) step expends 0.46 kJ (0.11 kcal) for the average person, and descending a step expends 0.21 kJ (0.05 kcal). The study concluded that stair-climbing met the minimum requirements for <a href="/wiki/Cardiorespiratory_fitness" title="Cardiorespiratory fitness">cardiorespiratory benefits</a>, and considered stair-climbing suitable for promotion of physical activity.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Competitive_sport">Competitive sport</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stair_climbing&amp;action=edit&amp;section=2" title="Edit section: Competitive sport"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Stair climbing has developed into the organized sport <a href="/wiki/Tower_running" title="Tower running">tower running</a>. Every year several stair climbing races are held around the world with the competitors running up the stairs of some of the world's tallest buildings and towers (e.g., the <a href="/wiki/Empire_State_Building" title="Empire State Building">Empire State Building</a>, <a href="/wiki/Gran_Hotel_Bali" title="Gran Hotel Bali">Gran Hotel Bali</a>), or on outside stairs such as the <a href="/wiki/Niesen" title="Niesen">Niesenbahn Stairway</a>. World class athletes from the <a href="/wiki/Running" title="Running">running</a> and <a href="/wiki/Cycle_sport" title="Cycle sport">cycling</a> worlds regularly compete in such events. Some have specialized exclusively in stair climbing races. Prizes, awards, and other accolades are given for the top performers by gender and age group. Stair climbing is one of the most grueling of sports, requiring competitors to move their entire body weight vertically, as well as horizontally. The results of more than 160 races on all continents are evaluated each year for the Towerrunning World Cup. The most important - about 18 so called "Masters Races" - have a predefined factor of 1.5 to 2.5, whereas all other races are given 0.4, 0.7 or 1 depending on class and internationality of the participants. 2010 World Cup winners were Melissa Moon (NZL) and Thomas Dold (GER). 2011 winners are Dold (3rd time) and Cristina Bonacina (ITA). The World Cup Final 2012 was hosted on December 8 in Bogota (COL). </p><p>An annual competition, 'Girnar Arohan Spardha', is held in <a href="/wiki/Junagadh" title="Junagadh">Junagadh</a>, <a href="/wiki/India" title="India">India</a>, and involves a race to climb and descend the steps of the <a href="/wiki/Girnar" title="Girnar">Girnar mountain</a>. </p><p><a href="/wiki/ESPN8_The_Ocho" title="ESPN8 The Ocho">ESPN8 The Ocho</a> has a televised event called "Slippery Stairs".<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Infants_and_safe_stair_descent">Infants and safe stair descent</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stair_climbing&amp;action=edit&amp;section=3" title="Edit section: Infants and safe stair descent"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Falling down a flight of stairs or just a couple of steps is very common during infants’ first exposure to stair descent. Infants are more likely to fall down stairs than any other age group.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> In the United States, approximately 73,000 children between the ages of 6 months and 2 years have reported injury on stairs or steps in 2009.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p><p>Stair descent involves perceptual, cognitive and motor abilities.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> It relies heavily on visual information to enable balance and accuracy. Seeing obstacles ahead helps stair descent, but for infants the action of keeping their heavy head balanced enough to look down at their feet and the objective together, make the process very difficult. (Hurlke, 1998). Not seeing the task ahead causes confusion and disrupts concentration. </p><p>Infants tend to adopt one of several strategies closely associated with stair descent: </p> <ul><li>Scooting: where the infant sits on the step and thrusts forward using their bottom to land on the next step.</li> <li>Backing: where the infant turns around (to counter the motion of climbing), and slowly lowers one foot at a time to descend to the lower step. Backing distributes the weight evenly on all four limbs, but means that the child cannot see what it is doing.</li> <li>Walking: where a child descends in an upright position facing the bottom of the staircase, lowering one foot at a time to the next step.</li></ul> <p>Some limited norms for stair climbing motor milestones have been established, but the process had historically been viewed like any other motor milestone - as a universal skill acquired through development. </p><p>One study looked at the typical age onset for stair ascent and descent, and compared them to other developmental milestones. It also looked at the stair climbing strategies that infants use. Consisting of 732 infants, and including parental assessment and documentation of motor skill achievements, along with in-depth interviews parents about the strategies involved and child assessment using laboratory stair apparatus. The results showed that children younger than 9 months of age were unable to go up or down stairs at all, or were only able to go up. By around 13 months, most infants could go upstairs and about half could ascend and descend stairs. Infants typically learned to descend stairs after they have already learned to ascend, with only about 12% achieved both stair-climbing skills at the same time.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> </p><p>On average in this study, infants learned to crawl and cruise before learning to ascend stairs independently. Infants were able to climb up the stairs before they could walk, but walking tended to come before independent stair descent. While most of the infants had prior stair experience, the presence or absence of stairs in the home did not influence the onsets of crawling, cruising or stair descent. However, lack of exposure to stairs resulted in a significant time-lag between first learning to ascend and to descend. Differences in housing types created a so-called 'suburban advantage' (i.e. houses with stairs versus flats/apartments without). </p><p>Sliding backwards feet first is the safest approach to descending stairs due to the fact that the midline of the body is closer to the staircase providing an even weight distribution on all four limbs.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (May 2021)">citation needed</span></a></i>&#93;</sup> This might explain why it is exceptionally difficult for older people to descend stairs, because their midline is so far way due to longer arms and legs.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (May 2021)">citation needed</span></a></i>&#93;</sup> </p><p>Other research suggests that infants’ descent strategies may be related to their cognitive abilities.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> This is why most parents teach their children to back down stairs, even though it's the safest it is also the most cognitively difficult descent strategy. </p> <div class="mw-heading mw-heading2"><h2 id="Records">Records</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stair_climbing&amp;action=edit&amp;section=4" title="Edit section: Records"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>On 28 September 2014, Christian Riedl climbed <a href="/wiki/Tower_185" title="Tower 185">Tower 185</a> in Frankfurt, Germany 71 times in 12 hours for a total of 43,128&#160;ft (13.14&#160;km).<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup></li> <li>From 5–6 October 2007, Kurt Hess climbed <a href="/w/index.php?title=Esterli_Tower&amp;action=edit&amp;redlink=1" class="new" title="Esterli Tower (page does not exist)">Esterli Tower</a> in <a href="/wiki/Switzerland" title="Switzerland">Switzerland</a> 413 times in less than 24 hours for a total of 60,974&#160;ft (18.585&#160;km).<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stair_climbing&amp;action=edit&amp;section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFTehAziz2002" class="citation journal cs1">Teh, Kong Chuan; Aziz, Abdul Rashid (April 2002). "Heart rate, oxygen uptake, and energy cost of ascending and descending the stairs". <i>Medicine &amp; Science in Sports &amp; Exercise</i>. <b>34</b> (4): 695–699. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1249%2F00005768-200204000-00021">10.1249/00005768-200204000-00021</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/11932581">11932581</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Medicine+%26+Science+in+Sports+%26+Exercise&amp;rft.atitle=Heart+rate%2C+oxygen+uptake%2C+and+energy+cost+of+ascending+and+descending+the+stairs&amp;rft.volume=34&amp;rft.issue=4&amp;rft.pages=695-699&amp;rft.date=2002-04&amp;rft_id=info%3Adoi%2F10.1249%2F00005768-200204000-00021&amp;rft_id=info%3Apmid%2F11932581&amp;rft.aulast=Teh&amp;rft.aufirst=Kong+Chuan&amp;rft.au=Aziz%2C+Abdul+Rashid&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AStair+climbing" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://thespun.com/more/top-stories/a-slippery-stairs-competition-espn-on-saturday">"Video: "Slippery Stairs" Competition Goes Viral on ESPN"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Video%3A+%22Slippery+Stairs%22+Competition+Goes+Viral+on+ESPN&amp;rft_id=https%3A%2F%2Fthespun.com%2Fmore%2Ftop-stories%2Fa-slippery-stairs-competition-espn-on-saturday&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AStair+climbing" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text">National Safe Kids Campaign, 2004; Young, Torner, Schmitt, Peek-Asa, 2011</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text">U. S. Consumer Product Safety Commission, 2010</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSiegler2007" class="citation journal cs1">Siegler, Robert S. (2007-01-01). "Cognitive variability". <i>Developmental Science</i>. <b>10</b> (1): 104–109. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1467-7687.2007.00571.x">10.1111/j.1467-7687.2007.00571.x</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a>&#160;<a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1467-7687">1467-7687</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/17181707">17181707</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Developmental+Science&amp;rft.atitle=Cognitive+variability&amp;rft.volume=10&amp;rft.issue=1&amp;rft.pages=104-109&amp;rft.date=2007-01-01&amp;rft.issn=1467-7687&amp;rft_id=info%3Apmid%2F17181707&amp;rft_id=info%3Adoi%2F10.1111%2Fj.1467-7687.2007.00571.x&amp;rft.aulast=Siegler&amp;rft.aufirst=Robert+S.&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AStair+climbing" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBergerTheuringAdolph2007" class="citation journal cs1">Berger, Sarah E.; Theuring, Carolin; Adolph, Karen E. (2007-02-01). "How and when infants learn to climb stairs". <i>Infant Behavior &amp; Development</i>. <b>30</b> (1): 36–49. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.infbeh.2006.11.002">10.1016/j.infbeh.2006.11.002</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a>&#160;<a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1934-8800">1934-8800</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/17292778">17292778</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Infant+Behavior+%26+Development&amp;rft.atitle=How+and+when+infants+learn+to+climb+stairs&amp;rft.volume=30&amp;rft.issue=1&amp;rft.pages=36-49&amp;rft.date=2007-02-01&amp;rft.issn=1934-8800&amp;rft_id=info%3Apmid%2F17292778&amp;rft_id=info%3Adoi%2F10.1016%2Fj.infbeh.2006.11.002&amp;rft.aulast=Berger&amp;rft.aufirst=Sarah+E.&amp;rft.au=Theuring%2C+Carolin&amp;rft.au=Adolph%2C+Karen+E.&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AStair+climbing" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAdolph1997" class="citation journal cs1">Adolph, KE (1997). "Learning in the development of infant locomotion". <i>Monographs of the Society for Research in Child Development</i>. <b>62</b> (3): I–VI, 1–158. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.2307%2F1166199">10.2307/1166199</a>. <a href="/wiki/JSTOR_(identifier)" class="mw-redirect" title="JSTOR (identifier)">JSTOR</a>&#160;<a rel="nofollow" class="external text" href="https://www.jstor.org/stable/1166199">1166199</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a>&#160;<a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/9394468">9394468</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&#160;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:22980980">22980980</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Monographs+of+the+Society+for+Research+in+Child+Development&amp;rft.atitle=Learning+in+the+development+of+infant+locomotion.&amp;rft.volume=62&amp;rft.issue=3&amp;rft.pages=I-VI%2C+1-158&amp;rft.date=1997&amp;rft_id=info%3Apmid%2F9394468&amp;rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A22980980%23id-name%3DS2CID&amp;rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F1166199%23id-name%3DJSTOR&amp;rft_id=info%3Adoi%2F10.2307%2F1166199&amp;rft.aulast=Adolph&amp;rft.aufirst=KE&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AStair+climbing" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.guinnessworldrecords.com/world-records/stair-climbing-vertical-height-(12-hours)/">"Greatest vertical height stair climbing in 12 hours"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Greatest+vertical+height+stair+climbing+in+12+hours&amp;rft_id=http%3A%2F%2Fwww.guinnessworldrecords.com%2Fworld-records%2Fstair-climbing-vertical-height-%2812-hours%29%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AStair+climbing" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.guinnessworldrecords.com/records-3000/stair-climbing-vertical-height-in-24-hours/">"Stair climbing - vertical height in 24 hours"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Stair+climbing+-+vertical+height+in+24+hours&amp;rft_id=http%3A%2F%2Fwww.guinnessworldrecords.com%2Frecords-3000%2Fstair-climbing-vertical-height-in-24-hours%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AStair+climbing" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Stair_climbing&amp;action=edit&amp;section=6" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.towerrunning.com/races.php">Tower Running</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20111125144924/http://www.towerrunning.com/races.php">Archived</a> 2011-11-25 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></li> <li><a rel="nofollow" class="external text" href="http://stairclimbingsport.com/">Stair climbing sport</a></li> <li><a rel="nofollow" class="external text" href="http://monte8848.site90.net/">Stair Climbing Everest Club</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20111005090538/http://monte8848.site90.net/">Archived</a> 2011-10-05 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></li> <li><a rel="nofollow" class="external text" href="http://stairsport.com/">U.S.A. Stair Climbing Association</a></li> <li><a rel="nofollow" class="external text" href="http://www.subidahotelbali.com/">Gran Hotel Bali's Stair Climbing Competition</a></li> <li><a rel="nofollow" class="external text" href="http://www.eurekaclimb.com.au/">Eureka Tower Melbourne Climbing Competition</a></li> <li><a rel="nofollow" class="external text" href="http://www.vietnamrun.com/">Bitexco Vertical Run, Ho Chi Minh City, Vietnam</a></li></ul> <!-- NewPP limit report Parsed by mw‐web.eqiad.main‐db8f4f88b‐79dz7 Cached time: 20241030155341 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.195 seconds Real time usage: 0.248 seconds Preprocessor visited node count: 748/1000000 Post‐expand include size: 17081/2097152 bytes Template argument size: 1116/2097152 bytes Highest expansion depth: 12/100 Expensive parser function count: 2/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 25193/5000000 bytes Lua time usage: 0.121/10.000 seconds Lua memory usage: 4374051/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 208.528 1 -total 49.04% 102.253 4 Template:Cite_journal 34.73% 72.417 2 Template:Cn 24.67% 51.446 2 Template:Fix 15.47% 32.257 4 Template:Category_handler 6.64% 13.842 2 Template:Webarchive 5.62% 11.722 3 Template:Cite_web 4.25% 8.867 2 Template:Delink 1.44% 3.009 2 Template:Fix/category 0.83% 1.741 2 Template:Main_other --> <!-- Saved in parser cache with key enwiki:pcache:idhash:4741946-0!canonical and timestamp 20241030155341 and revision id 1242601348. 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