Kicks used in Krav Maga are a very effective way to end a fight, and so well worth practicing. Guy Dar covers kicks reasonably well in his video series. There are two main kick weapons to practice – the foot and the knee.
Ideally you’ll be wearing shoes. Shoes will protect your feet from impact damage and makes your foot tougher so that it hurts your opponent more. If you are bare foot then make sure that you don’t land the kick with your toes first otherwise you’ll hurt yourself more than the other guy! If barefooted you still can make contact with your heel or your instep.
In a fight do not… I repeat do not kick above waist level. You can practice high kicks if you want (good for acquiring balance, stretch and power) but they have no place on the street. High kicks take longer to deliver, consume more energy, they can unbalance you (especially if you miss!) and they can leave you wide open to counter attack. They look good in the movies, and that’s where they belong, not on the street.
In many ways so long as you land a kick somewhere on them then it’s going to hurt them. I really like striking the shin bone – it’s close in, easy to hit, and it’ll hurt them like crazy: a fantastic target. And as they are hobbling around you follow up with a quick one, two (ALWAYS follow up with a quick one, two ok!?).
The groin / crotch is another obvious target, it’s higher for sure, so it carries a slightly higher risk, BUT it carries the tremendous advantage that it is difficult target to miss, and is a fairly safe target even if you are barefooted.
Likewise kicking them in the knee with your heel can be a devastating attack. Once they have a shattered knee cap you can finish the off a cinch. Also it’s another good one if you have bare feet since your heel is a very tough instrument.
At close quarters the knee is a truly powerful weapon. Hit them in the groin or thigh and they’ll go down.
Another close quarter weapon is your heel – for stomping on their upper foot or grinding down on their shin.
Practice low kicks like your life depends on, because one day it might!