Hello, I'm a begginer at Aikido and currently ungraded, so i have a lot to learn, but recently i've had particular trouble with Forward and Backward Ukemi (i'm not sure of the correct names forgive me :L ) as whenever i lean foward on with my right arm foward when i go to roll my arm gives in and i faceplant the ground or the side of my back hits the mats, and i do the same thing with my backwards, i'm also left handed so i find performing ukemi fro this side unnatural (not to mention it hurts
) i'm not sure how to go about fixing this,could someone help me please??
If you're putting a lot of weight on your arm, such that it is collapsing under you, you're not ready to roll from standing. Practice rolling from a kneeling position, tucking your head and arm and connecting with your arm and shoulder together. Then make sure you go over the top (legs up, not to the side). The arm shouldn't have to do a lot of work.
I'm a fan of having beginners doing this from a kneeling position before rolling from a standing position.
I can't seem to visualize how you manage to mess up a backward ukemi in the same way, as there is no point in backward ukemi where your weight could go onto your arm.
Hope that helps a bit. If not, just ignore!