Exercise guide
Dumbbell Standing Single Spider Curl
- Intermediate
- Isolation
- Rep-based
- Shoulders
- Upper arms
The Standing Single Spider Curl is a focused isolation movement that targets the short head of the biceps by positioning the arm in front of the torso, maximizing peak contraction and tension.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand with feet shoulder-width apart, holding a dumbbell in one hand with a supinated (underhand) grip.
- Hinge forward at the hips until your torso is at a 45-to-60 degree angle, allowing the working arm to hang straight down perpendicular to the floor.
- Place your non-working hand on your hip or a stable surface for balance and support.
- Ensure your shoulder is pulled back and down, keeping the working arm completely vertical.
How to do it
- Exhale and curl the dumbbell toward your shoulder by flexing the elbow, keeping the upper arm perfectly stationary.
- Squeeze the bicep forcefully at the top of the movement for a one-second peak contraction.
- Inhale and slowly lower the weight back to the starting position using a controlled 3-second tempo.
- Complete the desired number of repetitions on one arm before switching to the other.
Form checklist
- Keep the elbow pinned in space; do not allow it to swing forward or backward during the curl.
- Maintain a flat back and engaged core to prevent lower back strain while hinged.
- Ensure the arm remains perpendicular to the floor throughout the entire range of motion.
- Avoid using momentum or 'swinging' the torso to lift the weight.
Pro tips
- Focus on rotating your pinky finger toward your shoulder at the top of the rep to maximize bicep peak activation.
- Imagine your upper arm is braced against an invisible board to ensure the movement only occurs at the elbow joint.
Make it harder
- Implement a 3-second isometric hold at the top of each repetition to increase time under tension.
- Use a '1.5 rep' style: curl to the top, lower halfway, curl back to the top, and then lower fully.
Frequently asked
- What muscles does the dumbbell standing single spider curl work?
- The dumbbell standing single spider curl primarily targets the biceps, and also works the deltoids as secondary muscles.
- What equipment do you need for the dumbbell standing single spider curl?
- The dumbbell standing single spider curl uses dumbbell.
- Is the dumbbell standing single spider curl good for beginners?
- The dumbbell standing single spider curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.