in judo a submission (win) can be obtained when a strangle or shime-waza technique is used. ‘Shime’ is a Japanese term which implies ‘closing’, in judo there are two forms of closing techniques :
- Choke – pressure is applied to the front of the neck over the wind pipe, to stop breathing and therefore oxygen reaching the lungs (and carbon dioxide leaving the lungs).
- Strangle – pressure is applied to the side of the neck over the carotid arteries  to restrict blood flow to the brain
Judoka should recognise when a strangle is on and can not be escaped from and ‘tap up’. It is never ‘good form’ or clever to be strangled into unconsciousness and especially in practice sessions the judoka applying the shime must be aware of the techniques effect and if their partner does not submit then pressure should be released.
FACING YOUR PARTNER
Nami-Juji-jime_normal cross grip, with the thumbs inside the jacket
Gyaku-Juji-jime_reverse cross grip, with the fingers inside the jacket
kata-Juji-jime_1/2 cross strangle, one hand fingers in, other hand thumb in.
ryote-jime _ two handed choke using your fists (gripping the jacket) to apply pressure to the carotid arteries (this can also be applied from the rear)
tsuki-komi-jime _ push/pull strangle
FROM BEHIND
okuri-eri-jime _ sliding collar choke
kata-ha-jime_ single wing choke
hadaka-jime_naked strangle
sode-jime_ gripping your own sleeves, one arm in front of uke’s throat one behind.
FROM THE SIDE
sangaku-jime _ using your legs to create a triangle which encloses uke’s neck and one arm
suso-jime_using the skirt of the jacket
sode-guruma-jime– cross grip using the front and rear shoulder pad areas
koshi-jime_variation of okuri-eri-jime, but started from kneeling by the side of uke who is ‘on all fours’, tori uses his/her hip for control
jokoku-jime_ variation of okuri-eri-jime, uke on ‘on all fours’, tori dives over the top to roll uke.
Some shime-waza’s can be applied whilst standing but tori must have good control and not use the techniques to unbalance or throw uke.