StyrkiStyrki
AI CoachExercisesBlogHelp Center
Sign inGet the app
StyrkiStyrki
AI Coach|Exercises|PB Tracker|Blog|Help Center|Privacy Policy|Terms of Service

© 2026 Styrki. All rights reserved.

Exercise Library/Abs/Machine/Captain's Chair Knee Raises
Back to Library

Captain's Chair Knee Raises

MachineStrength

No video available

Captain's Chair Knee Raises are a bodyweight strength exercise performed on a captain's chair machine, where you grip the handles, hang with your back supported, and lift your knees toward your chest by contracting your core. The primary purpose is to build abdominal strength and improve core stability. It mainly targets the abs, with secondary engagement of the hip flexors, making it ideal for athletes, fitness enthusiasts, and anyone seeking to enhance midsection power and endurance without floor-based strain.

How to Perform Captain's Chair Knee Raises

  1. 1Stand facing the Captain's Chair machine and position your forearms on the padded supports with elbows bent at 90 degrees.
  2. 2Place your back firmly against the back pad, gripping the handles for stability.
  3. 3Lift your feet off the ground by bending your knees slightly, letting your body hang with legs straight or knees softly bent.
  4. 4Engage your core by pulling your belly button toward your spine; inhale to prepare.
  5. 5Exhale as you slowly raise your knees toward your chest, keeping them together and lifting to hip height without swinging.
  6. 6Pause briefly at the top for 1 second, squeezing your abs.
  7. 7Inhale as you lower your legs in a controlled manner back to the starting position.
  8. 8Key form tips: Keep movement slow and controlled to avoid momentum; maintain a neutral spine without arching your back; avoid shrugging shoulders—focus on abs, not hip flexors dominating. Common mistake: swinging legs—use strict form for max ab activation.

Muscles Worked

Front

Back

Primary
Secondary
Primary
Abs
Secondary
Hip flexor

Equipment Required

Machine

Track this exercise

Log your sets, track PRs, and monitor progress with Styrki.

Start tracking free

Quick answers

What muscles does Captain's Chair Knee Raises work?
Captain's Chair Knee Raises primarily targets the Abs. Secondary muscles worked include the Hip flexor.
What equipment do I need for Captain's Chair Knee Raises?
Captain's Chair Knee Raises requires Machine. Make sure to select an appropriate weight for your fitness level.
How do I perform Captain's Chair Knee Raises correctly?
Captain's Chair Knee Raises is performed in 8 steps. Start by: Stand facing the Captain's Chair machine and position your forearms on the padded supports with elbows bent at 90 degrees. See the full step-by-step instructions above for complete form guidance.
What type of exercise is Captain's Chair Knee Raises?
Captain's Chair Knee Raises is a strength training exercise designed to build muscle and increase force production. It primarily works the Abs.

More Abs Exercises

View All

Cobra Pose

Abs
BW

Get-up (Warm up)

Abs
BW
Burpees demonstration
Video

Burpees

Abs
BW

Learn More

View all training guides

Let AI program your Captain's Chair Knee Raises

Styrki picks your Captain's Chair Knee Raises sets, weights and progression with adaptive periodization — and auto-detects PRs across 8 record types. Free to track, free forever.

Get the iPhone appFree beta via Apple TestFlight · install takes about a minute

Browse more exercises