You'll need a yoga block.
Elevated seiza https://ibb.co/jfXBe5 :
You sit on the block with your foot knuckles at the limit of the block and you hold for 120 seconds.
curled seiza https://ibb.co/hkZ2mk :
You basically sit on the front palm part of your feet. 120s
squatted seiza https://ibb.co/m9g4z5 :
you sit on the frontal part of your foot. 120s
It's not that difficult but it's intense, make sure you don't feel pain doing it but rather unconfortable. If you feel pain don't do it. my explenation is very poor so you'll have to imitate the images lol.
This releases the hamstrings too and one can feel more flexible hamstrings after doing this as they are connected to the feet.
Elevated seiza https://ibb.co/jfXBe5 :
You sit on the block with your foot knuckles at the limit of the block and you hold for 120 seconds.
curled seiza https://ibb.co/hkZ2mk :
You basically sit on the front palm part of your feet. 120s
squatted seiza https://ibb.co/m9g4z5 :
you sit on the frontal part of your foot. 120s
It's not that difficult but it's intense, make sure you don't feel pain doing it but rather unconfortable. If you feel pain don't do it. my explenation is very poor so you'll have to imitate the images lol.
This releases the hamstrings too and one can feel more flexible hamstrings after doing this as they are connected to the feet.