The FastFit™ Podcast

Ep.69 - Tonal vs. Isokinetic: Why We Refuse to Use Digital Weights

Play Episode Pause Episode

1x

00:00 / 00:26:50

RSS Feed

Share

Link

Embed

<blockquote class="wp-embedded-content" data-secret="exOIrgkjqh"><a href="https://www.fastfit.com/articles/podcast/ep-69-tonal-vs-isokinetic-why-we-refuse-to-use-digital-weights/">Ep.69 &#8211; Tonal vs. Isokinetic: Why We Refuse to Use Digital Weights</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.fastfit.com/articles/podcast/ep-69-tonal-vs-isokinetic-why-we-refuse-to-use-digital-weights/embed/#?secret=exOIrgkjqh" width="500" height="350" title="&#8220;Ep.69 &#8211; Tonal vs. Isokinetic: Why We Refuse to Use Digital Weights&#8221; &#8212; FastFit®" data-secret="exOIrgkjqh" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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://www.fastfit.com/wp-includes/js/wp-embed.min.js </script>

Part two with Jim Keen is all about the “digital weights” machines like Tonal that are everywhere right now. Jim explains why companies spend millions mimicking a barbell on a screen—and why that whole approach is fundamentally limited. The big takeaway: anytime you can select the resistance, it can’t match your real strength. It’s the clearest case yet for why we’re all in on isokinetics.