Back Extension
backBodyweight
Back Extension is a bodyweight back movement. It primarily trains the Erector Spinae, with the Glutes and Hamstrings assisting. In Rebar it is logged as weight × reps, so every set contributes to your volume, your estimated 1RM and your Strength Index. It is also called hyperextension, hyper extension, back extensions.
Movement details
Primary muscle
Erector Spinae
Secondary
Glutes, Hamstrings
Equipment
Bodyweight
Tracked as
Weight × reps
Category
lower back
Also known as
hyperextensionhyper extensionback extensionshypers
Track your Back Extension
Log it in Rebar and this page becomes your record for the lift: every session, your heaviest set, and estimated-1RM progression over time.
More Erector Spinae exercises
Movements whose primary mover is also the Erector Spinae.
More back with a bodyweight
Same equipment, same area — useful when the rack is busy.