Originally Posted by Jo123ABC:
I also like the rock n play for lunch time but not for sleeping! I also always buckled it though too.
As for jumperoos... I don't think they cause motor delays. Both of my own kids LOVED them and they were both preemies who started walking at 10mo. I think it's all about how you use the stuff. People who depend on them to entertain or quiet their children are more of a problem than the toys/devices themselves. I don't see a problem with those who use them in moderation and with common sense.
Jumpers:
Those that suspend from a door frame pose dangers including head trauma, strangulation and whiplash.
All versions encourage standing on the tiptoes, which is not good for baby's feet, and excess jumping puts unnecessary stress on an infant's legs, hips and spines.