Strict Curl (Barbell, Back Against Wall)
The strict curl is a bicep isolation exercise performed with your back, glutes, and head pressed firmly against a wall to eliminate momentum. By removing the ability to swing the body, this movement places maximum tension directly on the biceps for pure strength and hypertrophy.
Since the wall eliminates momentum, Iridium treats RPE and load data from this exercise as a high-confidence baseline for your true bicep strength. The system aggregates this isolation volume with your recent compound pulling history to ensure you remain within your specific bicep Maximum Recoverable Volume. This prevents excessive accessory work from negatively impacting recovery for upcoming back sessions.
Form Cues
- Press your head, upper back, and glutes firmly against the wall
- Tuck your elbows into your sides before starting the lift
- Squeeze the barbell hard to activate your forearms
- Curl the weight up while keeping your lower back flat against the wall
- Lower the bar slowly to a full lockout
- Don't let your head or butt come off the wall at any point
- Don't swing your elbows forward excessively to move the weight
- Don't cut the range of motion short at the bottom
- Don't use your legs to drive the weight up
Common Mistakes
- Arching the lower back off the wall
- Pushing the head forward to strain the neck
- Flaring the elbows outward
- Using a grip that is too wide or too narrow
- Curling the wrist excessively at the top
Muscles Worked
This exercise primarily targets the biceps brachii (both the long and short heads) by enforcing strict isolation and preventing other muscle groups from assisting. The forearms and brachialis also work heavily to grip the bar and stabilize the elbow joint throughout the range of motion.
Primary
Secondary
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