squats strengthen your core.<p><a href="https:&#x2F;&#x2F;www.google.com&#x2F;webhp?ion=1&amp;espv=2&amp;ie=UTF-8#q=what%20are%20your%20core%20muscles" rel="nofollow">https:&#x2F;&#x2F;www.google.com&#x2F;webhp?ion=1&amp;espv=2&amp;ie=UTF-8#q=what%20...</a><p>&quot;quickness&quot; is absolutely about the core muscles.  This sort of quickness is not quite what the article was talking about, but for your case it&#x27;s relevant.<p>A major reason <i>why</i> squats are so beneficial is because it strengthens your core.