Back pain magical exercises

Physiotherapist are having a magic broom to cure your back pain. This magical thing is simple set of five magical back exercises.
These exercises can be done everywhere not necessarily need clinical setups.
1. Knee to chest bending.
2. Both knee to chest.
3. Leg raise to 15 degree
4. spinal rotations exercises
5. Bridging exercises.

Consult your physiotherapist before starting these exercises as in some cases these may be contraindicated.