How to Do a Jackknife | Ab Workout
1:36
How to Do a Jackknife | Ab Workout
2.5M viewsJun 12, 2012
YouTubeHowcast
Jackknife | Core Power & Stability Workout!
0:12
Jackknife | Core Power & Stability Workout!
3.4K viewsFeb 28, 2025
YouTubePerformance Fit Pilates
How To Perform Do Jack Knives Core Exercise With A Dumbbell
0:41
How To Perform Do Jack Knives Core Exercise With A Dumbbell
12.4K viewsMar 10, 2021
YouTubeWhats Up Dude
How to Do Jackknife Sit Ups for Beginners | Ab & Core Exercise
1:51
How to Do Jackknife Sit Ups for Beginners | Ab & Core Exercise
32K viewsJan 28, 2020
YouTubeBrian Syuki
Jack Knife Crunch - Watch all active muscles
4:56
Jack Knife Crunch - Watch all active muscles
69.1K viewsSep 18, 2019
YouTubeMuscle & Motion
🔥 Jackknife Variations for Core Strength & Control! 🔥
0:18
🔥 Jackknife Variations for Core Strength & Control! 🔥
844 views3 months ago
YouTubePerformance Fit Pilates
How to Do JackKnife Situp Exercise for Abs and Core by Will Safford
1:47
Find in video from 00:14Jackknife Position and Cues
How to Do JackKnife Situp Exercise for Abs and Core by Will Safford
489 viewsMar 28, 2021
YouTubeStrong And Fit
0:51
Jackknife Sit Up - Core / Abs - Bodybuilding.com
248.3K viewsAug 16, 2013
YouTubeBodybuilding.com
2:03
Jack knife Sit Up | Core Exercise
10.9K viewsJul 5, 2020
YouTubeAnthony Mayatt
0:42
Jack Knife Crunch (Lv 1)
234.1K viewsFeb 10, 2011
YouTubeFitnessBlender
See more
Static thumbnail place holder