ab builder curling your torso up from a decline bench
the decline lets your torso drop below horizontal, so the abs are loaded in a
longer position than a floor sit-up can reach
steeper is longer: the bench angle is the load here as much as anything you
hold
Execution
Lie back on a decline bench with your legs hooked over the pads, hands across
your chest or behind your head.
lower your torso back until you feel the stretch across your abs
curl your shoulders up, rounding your spine as you rise
keep curling until your torso is upright
lower under control back into the stretch
pause briefly in the stretched position before the next rep
Set the bench angle once and keep it. Steeper is a longer range and not the same
exercise as shallow, so if you change the angle, pick Changed technique or
equipment in the exercise menu.