1.0OsteoMaghttps://osteomag.ca/en/André Alepinhttps://osteomag.ca/en/author/andrealepin/Eccentric muscle injury Ostéobloguerich600338<blockquote class="wp-embedded-content" data-secret="bOyO4ONTyD"><a href="https://osteomag.ca/en/eccentric-muscle-injury/">Eccentric muscle injury</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://osteomag.ca/en/eccentric-muscle-injury/embed/#?secret=bOyO4ONTyD" width="600" height="338" title="“Eccentric muscle injury” — OsteoMag" data-secret="bOyO4ONTyD" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
/* <![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
//# sourceURL=https://osteomag.ca/wp-includes/js/wp-embed.min.js
/* ]]> */
</script>
https://osteomag.ca/wp-content/uploads/2022/04/muscle-injury.webp1200675An eccentric muscle contraction (lengthening) occurs when a force applied to the muscle exceeds the momentary force produced by the muscle itself. This will result in forced lengthening of the muscle-tendon system during contraction (the muscle is forced to lengthen due to the high external load). During this process, the muscle absorbs the energy developed by an external load, which is why eccentric action is also called "negative work" as opposed to concentric contraction (shortening) or "positive work." Repeated eccentric muscle contraction during exercise contributes to microscopic damage to muscles and tendons, leading to chronic muscle strains, muscle rupture, and tendinopathy.