A "gentle backbend" refers to a stretching exercise that involves bending your spine gently backward, but in a relaxed and comfortable manner. Full definition
He also recommends that those with scoliosis who weight train counter the downward pressure of the weights by following their routine with some time on an inversion table or with gentle backbends over a large therapeutic ball. (yogainternational.com)
In this gentle supine yoga practice, we focus on lengthening the spine, creating more range of motion in the hips and practicing a simple, very gentle backbend. (yogauonline.com)
Backbends are the most obvious poses for energizing — even gentle backbends can be stimulating. (yogajournal.com)