Eccentryx / Exercise Atlas / arms
Preacher curl machine
Pad supports upper arm fully; start with elbow nearly straight.
Muscles
- Primary
- biceps
- Supporting
- None listed
Mechanics
- Pattern
- elbow flexion
- Equipment
- machine
- Geometry
- Variable Range
- Energy model
- Glycolytic Pathway (10-90s)
- Target feel
- Short head loads hardest; elbow stays pinned through the full arc.
- Progression
- Add load or slow the eccentric to 3 s before moving up the stack.
- Regression
- EZ-bar curl if the machine seat doesn't fit.
Watch for
- Using the same arm angle as a free preacher — loses the stabilized advantage
- Stopping short of full elbow extension — skips the stretch
- Jerking out of the bottom
Substitutions
- Incline dumbbell curl
- EZ-bar curl
- Spider curl