|Back and leg stretch|
The Back and leg stretch is a good way to strect bot the muscles in the inside of the legs (adductors) as well as giving general spine mobility.
As well as the individual effects from both the back and legs it also helps the entiresystem ansd creates hip mobility.
As variations to this stretch, it becomes more difficult and the stretch moves more to the legs if it is started with the toes not pointed but the ankles pointing back (or flesed). As this stretch becomes easier you should widen the legs.