My kid seems to have developed this trait in his swing. Could someone please elaborate on this and go over the pro and cons. Does this need correction ? How?
Original Post
Back side collapse usually means the kids body is swaying back and forth instead of rotating.This may also be seen as "hip slide" after the front heel drops.If the hips slide and the head stays back,you get more dramatic back side collapse.If the hips slide and the head comes forward,that usually looks like lunging.In the rotational swing,the body needs to be coiling as you go into front toe touch.This is what Epstein would call "winding the rubber band",for example.After the front heel drops,the forward weight shift stops,there is a last little bit of coil,then the uncoiling begins.Epstein drills are a good place to start to fix this.