Basic - 10 minutes - Amy Bisazza You need to be a member to watch this video. Learn more Spinal flexes and sufi grind warm ups can be practised as preparation for the 30 minute session or as exercises by themselves. Both help to loosen and warm up the spine. Share DownloadClick here to learn about watching videos offline on your mobile devicesPlease click this link to confirm you want to download this video. It will be taken from your monthly allownace.