Are jerky movements normal for a 1 year old?

Typically not. The jerky movements would need to be observed and several things evaluated by history, physical exam and blood tests. A consultation with a neurologist would be recommended.
Depends. Nervous system maturity progresses from top down & center out.Infants/toddlers are more prone to less refined movements and must look at their fingers to voluntarily grasp and release things.They often drop things & by the age they show interest in coloring cannot stay within the lines until older. Any random, large scale jerking would be unexpected and require evaluation.

Related Questions

Please tell me, are jerky movements normal for a 1 year old?

Depends. When children or people in general fall into deep sleep they can have jerky movements. If the child will develop a fever she or he can develop chills. Otherwise you should talk with the child pediatrician about it. Read more...