
supine position pulling one knee to chest while extending opposite leg to stretch hip flexors
Lie on back with both leg straight forward and arms by side. Lift both foot off the floor and bend the both knee towards the chest using both arms, release one leg keeping knee straight on floor. Hold one knee and feel for stretch in front of hip of lowered leg. Straight the knee on floor to repeat.
Nothing here is a prescription. Your physiotherapist decides which of these are yours, and when.