Machine Back Extension
backMachine
Machine Back Extension is a machine back movement. It primarily trains the Erector Spinae, with the Glutes 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 seated back extension, lower back machine.
Movement details
Primary muscle
Erector Spinae
Secondary
Glutes
Equipment
Machine
Tracked as
Weight × reps
Category
lower back
Also known as
seated back extensionlower back machine
Track your Machine 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 machine
Same equipment, same area — useful when the rack is busy.