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  1. How to Do Knee Ups and Strengthen Your Core - wikiHow

  2. Abs Workout: Knee-Ups - YouTube

  3. Knee Ups (ab toning) - YouTube

  4. How to Do Knee Ups for Ab Strength (Form + Benefits)

  5. Body Conditioning: Exercises, Instructions, and More - Healthline

  6. The Knee-Up Lunge - YouTube

  7. Perfect Your Form: Benefits of Knee Push Ups Explained - Greatist

  8. Leg Pull-In Knee-ups – WorkoutLabs Exercise Guide

  9. High Knees | Illustrated Exercise Guide - SPOTEBI

  10. Seated Bench Leg Pull-Ins / Flat Bench Knee-ups - WorkoutLabs