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. Bear Plank Kickback

Exercise guide

Bear Plank Kickback

  • Intermediate
  • Compound
  • Timed hold
  • Shoulders
  • Waist

The Bear Plank Kickback is a dynamic stability exercise that builds core strength and glute power by combining a quadruped hover with hip extension. It effectively challenges the obliques and deep abdominals to stabilize the spine while the glutes and hamstrings drive the movement.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Bear Plank Kickback demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Abs
  • Hamstrings
  • Obliques

Secondary

  • Erector spinae
  • Serratus anterior

Equipment

  • Body weight

Setup

  1. Start on all fours with your hands directly under your shoulders and knees under your hips.
  2. Tuck your toes and lift your knees 1-2 inches off the floor, keeping your back flat and shins parallel to the ground.
  3. Engage your core and push through your palms to create a stable base.

How to do it

  1. While maintaining the hover, exhale and lift one foot off the floor, kicking it back and upward until your leg is fully extended.
  2. Squeeze your glute at the top of the movement, ensuring your hips stay square to the floor and do not rotate.
  3. Inhale as you slowly return your knee to the hovering starting position without letting it touch the ground.
  4. Alternate legs for the next repetition, maintaining a controlled 2-1-2 tempo (2 seconds out, 1 second hold, 2 seconds back).

Form checklist

  • Keep your knees hovering only 1-2 inches off the floor throughout the entire set.
  • Maintain a neutral spine; do not let your lower back arch as you kick back.
  • Keep your neck in line with your spine by looking at a spot on the floor just ahead of your hands.
  • Ensure your weight remains centered and your hips don't shift side-to-side.

Pro tips

  • Imagine a glass of water sitting on your lower back; your goal is to move your legs without spilling a drop.
  • Focus on driving through the heel rather than the toes to maximize glute and hamstring recruitment.
  • Keep your arms locked and push the floor away to engage the serratus anterior for better upper body stability.

Make it harder

  • Place a mini-band around your thighs just above the knees to increase resistance on the glutes.
  • Perform the kickback with a 3-second isometric hold at the peak of the contraction to increase time under tension.

Frequently asked

What muscles does the bear plank kickback work?
The bear plank kickback primarily targets the abs, hamstrings, and obliques, and also works the erector spinae and serratus anterior as secondary muscles.
What equipment do you need for the bear plank kickback?
The bear plank kickback requires no equipment — just your body weight.
Is the bear plank kickback good for beginners?
The bear plank kickback is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Alternate Single Leg Raise PlankIntermediate · abs, deltoids, hamstrings, and obliques
  • Bear Plank Floating Leg ExtensionIntermediate · abs, deltoids, hamstrings, and obliques
  • Bear Plank Floating MarchIntermediate · abs, calves, deltoids, hamstrings, and obliques
  • Bear WalkIntermediate · abs, calves, deltoids, hamstrings, obliques, and pectorals

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