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  3. Exercises
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  5. Shoulders
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  7. Cable Incline Inner Biceps Curl

Exercise guide

Cable Incline Inner Biceps Curl

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

This exercise targets the short head (inner) of the biceps by placing the arms behind the torso on an incline, providing a deep stretch and constant cable tension. The incline angle increases the range of motion and emphasizes the peak contraction for better muscle shape and thickness.

Reviewed by the Crucible Fit team · Updated June 2026

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

Muscles worked

Primary

  • Biceps

Secondary

  • Forearms

Equipment

  • Cable

Setup

  1. Position an incline bench at a 45-to-60-degree angle, facing away from a low cable pulley system.
  2. Attach a straight bar or two D-handles to the low pulley.
  3. Sit on the bench with your back and head firmly against the pad and feet flat on the floor for stability.
  4. Grasp the handles with an underhand (supinated) grip, allowing your arms to hang straight down and slightly behind your torso.

How to do it

  1. Exhale and curl the weight upward toward your shoulders while keeping your upper arms stationary and elbows pinned back.
  2. At the top of the movement, squeeze your biceps hard, focusing on the inner portion of the muscle.
  3. Inhale and slowly lower the weight back to the starting position using a controlled 3-second eccentric tempo.
  4. Fully extend your arms at the bottom to feel a deep stretch in the biceps before starting the next repetition.

Form checklist

  • Keep your elbows fixed in place; do not allow them to swing forward during the curl.
  • Maintain a neutral wrist position to avoid overtaxing the forearms.
  • Ensure your shoulder blades remain retracted and against the bench throughout the set.
  • Avoid arching your lower back or lifting your hips off the bench to create momentum.

Pro tips

  • Squeeze your triceps at the very bottom of the movement to ensure the biceps are fully lengthened and under maximum stretch.
  • Focus on 'turning' your pinkies toward the ceiling at the top of the curl to further isolate the inner bicep fibers.
  • Keep your head back against the pad to maintain cervical spine alignment and prevent neck strain.

Make it harder

  • Incorporate a 2-second isometric hold at the peak of the contraction on every rep.
  • Perform a '1.5 rep' style where you do a full rep followed by a half rep from the bottom to the midpoint.

Frequently asked

What muscles does the cable incline inner biceps curl work?
The cable incline inner biceps curl primarily targets the biceps, and also works the forearms as secondary muscles.
What equipment do you need for the cable incline inner biceps curl?
The cable incline inner biceps curl uses cable.
Is the cable incline inner biceps curl good for beginners?
The cable incline inner biceps curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

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.

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