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StrengthBeginner
Machine Preacher Curls
Equipment
Machine
Target Muscles
Biceps
Category
Strength
Muscle Group
Arms
Force Type
pull
Mechanics
isolation
Target Muscles
Biceps
Breathing
Exhale as you pull the weight toward your body, inhale as you extend back to the start.
Common Mistakes
- •Rushing through reps instead of using a controlled tempo
- •Holding your breath during the movement
- •Not using the full range of motion
Safety Tips
- •Keep your core engaged to protect your lower back
- •Start with a weight you can control, not your one-rep max
- •Maintain proper posture and alignment throughout the movement
Variations
- •Adjust the seat position to align the pivot with your joint
- •Use a slower tempo and squeeze at the peak contraction
- •Try one leg / one arm at a time
Alternatives
- •Choose another exercise that targets the biceps
Progressions
- •Master the basic form with bodyweight before adding external load
- •Increase the weight by 5-10% once you can complete all reps with clean form
- •Slow down the eccentric (lowering) phase to 3-4 seconds
- •Reduce rest periods between sets to increase workout density
- •Add an extra set or rep each week (progressive overload)
Regressions
- •Reduce the weight to focus strictly on technique
- •Decrease the range of motion if you feel joint discomfort
- •Increase rest intervals to ensure full recovery between sets
Beginner Tips
- •Master proper form before increasing weight
- •Focus on slow, controlled movements — don't chase speed
- •Start with 2-3 sets of 10-12 reps to build a solid foundation
- •Record yourself to check your form
Pro Tips
- Warm up with lighter sets of the same exercise to prime the nervous system
- Stay tight throughout — brace your core before every single rep
- Focus on the mind-muscle connection — consciously squeeze the target muscle at the peak of each rep