re: Kids Baseball- Kids getting their hands rung/jarred by the bat..

Are they swinging with their arms only? I know its pitching machine, so they don't have many of the fundamentals down, but if you can coach them up on stepping into their swing and making better contact, it might help.

There really isn't a lot of meat behind a swing that is done with only their arms. I umpired on that field for about two or three years. Some of the kids will get it, others will still look like they do right now, in the last game of the season.