{"version":"1.0","provider_name":"Bonpilates","provider_url":"https:\/\/www.bonpilates.com\/en\/","title":"Roll over + Jack Knife on Reformer Monitor - Bonpilates","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"m4IMI3Gjvv\"><a href=\"https:\/\/www.bonpilates.com\/en\/videos\/roll-over-jack-knife-on-reformer-monitor\/\">Roll over + Jack Knife on Reformer Monitor<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.bonpilates.com\/en\/videos\/roll-over-jack-knife-on-reformer-monitor\/embed\/#?secret=m4IMI3Gjvv\" width=\"600\" height=\"338\" title=\"&#8220;Roll over + Jack Knife on Reformer Monitor&#8221; &#8212; Bonpilates\" data-secret=\"m4IMI3Gjvv\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/www.bonpilates.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/www.bonpilates.com\/wp-content\/uploads\/2025\/03\/Roll-over-18.webp","thumbnail_width":1024,"thumbnail_height":576,"description":"The roll over and jack knife exercises are two common movements in training with the Reformer Monitor machine. These exercises work the strength and flexibility of the back and abdomen, and can also improve posture."}