Exercise Guide
How to do ez-barbell spider curl
Master the setup, range of motion, and tempo for safer, more effective reps.
Overview
The Spider Curl is the ultimate 'no-cheat' bicep exercise. By lying face-down on an incline bench, your arms hang straight down, making it physically impossible to use your back or legs to swing the weight.
This variation places a massive amount of tension on the biceps at the very top of the movement, where the muscle is most shortened. If you want to improve the 'peak' of your biceps and ensure your form is 100% honest, the spider curl is your best friend.
Why Use It
- Zero momentum: The bench blocks your body from swinging.
- Maximum tension at the top of the rep for a better bicep peak.
- Forces a huge mind-muscle connection because you can see your biceps working.
When to Use It
This is a perfect 'finisher.' Use it at the end of your arm workout when you want to completely exhaust the biceps with perfect form.
Instructions for Proper Form
Setup
- The Bench: Set an incline bench to a 45-degree angle.
- The Position: Lie face-down on the bench. Your chest should be at the very top of the pad so your arms can hang freely over the edge.
- The Grip: Pick up the EZ-bar with an underhand grip. Let your arms hang straight down toward the floor.
Execution
- The Curl: Keeping your upper arms vertical and still, curl the bar up toward your face.
- The Peak: Squeeze your biceps hard at the top. Because of the angle, this will feel much harder than a standard curl.
- The Reset: Slowly lower the bar back to the starting position until your arms are fully straight.
Coach's Note: Don't let your elbows tuck back toward your ribs. Keep them pointing straight at the floor throughout the whole move.
Common Mistakes
- Elbow Flare: Letting the elbows swing back toward the body, which uses the shoulders instead of the biceps.
- Head Movement: Tucking the chin or straining the neck to meet the bar.
- Partial Reps: Stopping the movement before the arms are fully straight at the bottom.
Mistakes by Level
Beginner
- Trying to use too much weight and hitting the bench with the bar.
- Lifting the chest off the pad.
Intermediate
- Swinging the weight at the bottom to get it started.
Advanced
- Failing to control the very end of the lowering phase.
Mechanics
Use these setup and execution anchors to keep the rep organized, repeatable, and easier to progress.
Movement Pattern
Isolation
Body Position
Prone
Load Style
Other
Muscles Worked
Primary
- Biceps
Secondary
- Brachialis
- Forearms
Stabilizers
- Upper-back
- Core
Setup Requirements
- Set an incline bench to about 45 degrees.
- Lie face-down (prone) with your chest supported by the top of the pad.
- Your arms should hang straight down toward the floor.
Form Checklist
- Is your chest staying in contact with the bench?
- Are your elbows staying still, or are they swinging back?
- Are you getting a full stretch at the bottom?
Range of Motion
Start from a full hang. Curl the bar up until your forearms touch your biceps. Lower slowly until your arms are straight.
Breathing Pattern
Exhale as you curl the bar up; inhale as you lower it back down.
Tempo Guidance
1 second up, 1 second squeeze, 2 seconds down.
Caution Notes
- Don't let the bar bang into the bench frame at the bottom.
Programming
Treat these guidelines as practical programming defaults, then scale load, volume, and frequency to match the rest of the training week.
Best For
- Isolating the biceps.
- Developing the bicep peak.
- Correcting 'cheating' habits in other curl variations.
Goal Tags
Rep Ranges
- 10-15 reps. This isn't a move for 'max weight'; it's for quality tension.
Set Guidance
2-3 sets is usually enough given the high intensity of the isolation.
Rest Guidance
60 seconds. Keep the intensity high.
Frequency
1-2 times per week.
Pairings
- Superset with overhead tricep extensions.
- Use as a follow-up to heavy barbell curls.
Audience Notes
- Intermediate to advanced lifters will appreciate the strictness of this move.
- Beginners should start very light to get the hang of the hanging arm position.
Substitution Targets
- Preacher curls
- Concentration curls
Variations
Use progressions to increase difficulty when you master the movement, and regressions if you struggle with proper form or face mobility limitations.
Regressions
Dumbbell Spider Curls
Easier to manage the weight and allows for a more natural wrist rotation.
Best for: Learning the movement pattern.
Progressions
Spider Curl with Pause
Adding a 2-second pause at the top increases the time under tension where the bicep is weakest.
Best for: Maximum muscle growth.
FAQ
Common Questions
Why is it called a Spider Curl?
Legend has it the name comes from the original 'Spider Bench' which had eight legs, but today it refers to any curl where you are leaning over the edge of a bench.
Does this work the long head or short head of the bicep?
Because your arms are in front of your body, it emphasizes the short head (the inner part) and the brachialis, helping with thickness and peak.
Alternatives
Start with the closest related options, then browse fallback alternatives that keep the same primary training focus.