Do many top level Olympic lifters do these? Do they have much carryover to the jerk, or the snatch, general overhead strength, general strength. 22 Sep The behind the neck jerk is a viable training option for both beginner and advanced weightlifters. This jerk variation improves works to improve. 4 Dec Here's what you need to know about hypnic jerks (aka hypnagogic jerks), which strike as a person falls into a deep sleep.