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Sitting Swimming Knee Raise on a Chair

Step by step instructions, muscle activation and variants for the Sitting Swimming Knee Raise on a Chair.

EasyAbsCore

About this exercise

The sitting swimming knee raise on a chair is a seated core exercise that mimics a flutter-kick swimming motion, alternately driving the knees upward while balanced on the edge of a chair. It targets the abs and deep core stabilizers with minimal equipment.

How to Perform

  • Sit on the edge of a chair with your back straight and hands gripping the sides of the seat for support
  • Lean back slightly to engage the core, keeping the spine neutral
  • Lift both feet off the floor, balancing on your sit bones
  • Drive your right knee upward toward your chest while extending the left leg forward
  • Switch legs in a smooth, alternating swimming motion
  • Keep the movement controlled and avoid rocking the torso
  • Continue alternating for the desired number of repetitions

Muscle Activation

Primary
AbsCore
Secondary
Obliques

About the Sitting Swimming Knee Raise on a Chair

The Sitting Swimming Knee Raise on a Chair is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.