50 Knee Tuck Crunches Challenge [Six Pack, Abdominals]

Knee Tuck Crunches is a great ABS exercise, working mainly your rectus abdominus muscle that is responsible for the infamous six pack. This challenge requires significant muscle effort so be careful and allow the muscle to rest properly.

Best of luck and let me know in the comments below how you're doing!

Abs exercise
Knee Crunches

[praisetashingamazarire]

Roberta's gym you the reason why I'm constant with my workouts

[sharonwilliams]

This is way more challenging than the bicycle exercise with this tutorial. I liked to died at 20 so every 20 I had to stop so I made it thru thank God and I know when I feel pain that means I'm working the muscles correctly. This exercise I'm definitely working in my exercise routine.

[thetruthhurts]

Roberta makes it look so easy and effortless. Stop showing off, Roberta!! 😂

[asprettyasapicture]

One of the most hardest exercise i have ever did.
But one of the most effective also!

I was just able to do 20/50!

[praisetashingamazarire]

Thank you Roberta's gym for this effective work out

[spartanthegreek]

Can you do more Challenges like this? I LOVE THEM

[imaginebubbles]

day 1: getting a smaller waist (completing other exercises too)
1. complete✅
2. complete✅
3. complete✅
4. complete✅
5. complete✅

[rahulalbertfrancis]

M doing this excercise since I hve seen this video of urs and it's been 7days and can really feel my belly fat has reduced more than expected...now i can wear my favourite outfits...i do 40/50 crunches...tq

[pradnyaalne]

29 December 2023: Done ✅ ❤

1 January 2024: Done ✅ ❤ Hardest 🔥 But I pushed through it ❤

6 January 2024: Done ✅ ❤ Hardest, However I pushed through 💪🏻

11 January 2024: Done ✅ ❤ Hardest, However I pushed through it 💪🏻

13 January 2024: Done ✅ ❤ Hardest, However I pushed through it 💪🏻🔥🥇

15 January 2024: Done ✅ ❤ Hardest, However I pushed through it 💪🏻🔥🥇

16 January 2024: Done ✅ ❤🔥💪🏻🥇

[nehaChaudhary-yute]

That's amezing and hard excercise tbh😢

[Sharfox]

Took me a hot minute to finish but I'll get there

[rubabali]

Thnx Roberta for very effective workout ❤❤👍👍

[AnitaKumari-mxjc]

Did anyone get benefit on doing these exercises?

[swigie]

75 hard chllenge
Day 1: 25/01/2025 ✅

[vidhiinavoid]

couldn't do more than 25 in the first attempt

[lisajones]

I wish you had a 100 count full situp that's a little slower

[sharonwilliams]

I don't like this one it challenges me and I don't like it. But I love the bicycle crunches challenge I do those 50 times 6 which gives three hundred a day. I do see results after a week

[khushimahto]

I do this daily three sets of twenty reps. Thought it would not be so hard to go fifty at once but damn my legs hurt. Yeah, not my abs but my legs hurt😂

Anyways, I'm done with this video as well.

[NenaJamal]

I could only do it by pausing for 2 to 3 seconds after 10.

[nimasubodhshah]

I could not do it.I stopped at 12.Maybe because I am a kid