Skip to content
Crucible Fit
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Pricing
Get Crucible
  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing
  • FAQ
  • Training Guides
Get Crucible
Crucible Fit

A daily functional fitness test for iPhone, Apple Watch and Android. Stations, reps and the Crux, sized to your readiness and your kit.

Download on the App StoreGet it on Google Play

Crucible Fit

  • The Crucible
  • The Week
  • Programs
  • Train Your Way
  • Apple Watch
  • Pricing

Explore

  • Training Guides
  • Exercise Library
  • FAQ
  • Press
  • Support

Legal

  • Terms and Conditions
  • Privacy Policy
  • Consumer Health Data Notice

CRUCIBLE FIT™ and Crux by Crucible Fit are trademarks of Crucible Fit, LLC.

© 2026 Crucible Fit, LLC. All rights reserved. Apple, the Apple logo, iPhone and Apple Watch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc. Google Play and the Google Play logo are trademarks of Google LLC.

  1. Home
  2. /
  3. Exercises
  4. /
  5. Shoulders
  6. /
  7. Dumbbell Incline Inner Biceps Curl

Exercise guide

Dumbbell Incline Inner Biceps Curl

  • Beginner
  • Isolation
  • Rep-based
  • Shoulders
  • Upper arms

This variation emphasizes the short (inner) head of the biceps by placing the arms behind the torso and rotating the palms outward. The incline position provides a deep stretch, leading to greater muscle fiber recruitment and hypertrophy.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Dumbbell Incline Inner Biceps Curl demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Biceps

Secondary

  • Deltoids
  • Triceps

Equipment

  • Dumbbell

Setup

  1. Set an adjustable bench to a 45 to 60-degree incline.
  2. Sit back with your head and spine firmly against the pad and feet flat on the floor for stability.
  3. Hold a dumbbell in each hand with your arms hanging straight down toward the floor.
  4. Rotate your wrists so your palms are facing away from your body and angled slightly outward.

How to do it

  1. Exhale as you curl the weights toward your shoulders while keeping your elbows pinned in a fixed position behind your torso.
  2. Maintain the outward rotation of your palms throughout the entire upward movement to isolate the inner bicep.
  3. Squeeze your biceps hard at the top of the movement for a one-second peak contraction.
  4. Inhale as you slowly lower the dumbbells back to the starting position using a controlled 3-second tempo.

Form checklist

  • Keep your elbows stationary and pointed toward the floor; do not let them swing forward.
  • Ensure your back and head stay in constant contact with the bench.
  • Achieve a full range of motion by fully extending the arms at the bottom of every rep.
  • Avoid using momentum or arching your lower back to move the weight.

Pro tips

  • Focus on turning your pinky fingers toward the ceiling at the top of the movement to maximize the contraction of the short head.
  • Keep your shoulders retracted and depressed to prevent the front deltoids from assisting the lift.

Make it harder

  • Add a 2-second pause at the bottom of the movement to emphasize the weighted stretch.
  • Slow the eccentric phase down to 5 seconds to significantly increase time under tension.

Frequently asked

What muscles does the dumbbell incline inner biceps curl work?
The dumbbell incline inner biceps curl primarily targets the biceps, and also works the deltoids and triceps as secondary muscles.
What equipment do you need for the dumbbell incline inner biceps curl?
The dumbbell incline inner biceps curl uses dumbbell.
Is the dumbbell incline inner biceps curl good for beginners?
Yes. The dumbbell incline inner biceps curl is a beginner-friendly movement and a strong foundation to build on.

Related exercises

  • Arm Double CrossoverIntermediate · biceps, deltoids, and triceps
  • Arms Stretch On A SupportBeginner · biceps, deltoids, and pectorals
  • Band 45 Degrees Biceps CurlBeginner · biceps
  • Band 45 Degrees One Arm Biceps CurlBeginner · biceps

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

Download on the App StoreGet it on Google Play

See how a Crucible works