Great class and creativity! Hamstrings on fire, in a good way. Loved the woodpecker, will certainly be stealing that one! Hamstring hinge a bit precarious on Allegro II as footbar lifts as you hinge, a little added challenge and concentration!! Fantastic class. Your gentle nature and instruction puts you into a false sense of security!!
Krasimira M Hi! You're right - not all exercises are ok for clients with lower back pain (or really any injury or pathology). The challenge with lower back pain is knowing the cause of it. A generalization (so please check with your client's doctor or PT) is that extension is contraindicated for spinal stenosis, spondylosis, spondylolisthesis, and some cases of herniated disks (depending on the direction of the herniation). I'm sure there are other contraindications as well. If I'm working with an injured client, I don't take them into any extremes of range (and this workout does in some cases). I hope that helps. My preference is always to ask someone's PT what NOT to do with them.