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Carla DiGirolamo, MD's avatar

Hi Bryan! Thank you so much for your comment, the kind words, and for subscribing! So many times high-yield movements like isometric holds and weighted carries get lost when they are diamonds in the rough for those of us with aching joints, impact limitations and the like. Thanks again for the comment! -Dr. Carla

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Carla DiGirolamo, MD's avatar

Hey There! Thank you so much for your very astute comment and for reading! In this workout, the fatigue you point out generated by the hold shows up when you try to do the thrusters! Pairing a high-fatigue, full-body power movement like the thruster makes this exhausting in a very sneaky way! It's one of those "What the hell just happened?" workouts! <LOL>. Thanks again for the comment! Happy New Year!

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Neural Foundry's avatar

Love seeing isometric holds getting proper respect, especially for thier metabolic impact. Most people think of L-sits as pure strength but the metabolic demand from maintaining that much tension across so many muscle groups is no joke. The tricep activation piece gets overlooked alot because everyone fixates on the core and hip flexors, but supporting bodyweight through straight arms for time? That's low-key brutal for tricep endurance in a way that regular presses just dont replicate.

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Carla DiGirolamo, MD's avatar

Hey There! Thanks so much for your astute comment and for reading! Yes, isometric holds are no joke… and when you team them up with a full-body power movement like the thruster, you realize just how much fatigue the holds generate! Who knew! This workout is definitely a “What the hell just happened?” kind of workout! Thanks again for the comment! Cheers! -Dr. Carla

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Bryan Kelly's avatar

This is such a great breakdown. As a masters 400/800m runner still competing at a high level, I’ve come to appreciate how much these “simple” isometric movements reveal.

The L-sit is especially valuable because it builds the kind of deep, integrated strength that actually transfers to powerful, elastic movement without beating up the joints.

Appreciate how you’re making it accessible without dumbing it down. This kind of smart, skill-based work is what athletic aging should look like.

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Heather Hausenblas, PhD's avatar

I haven't tried the L-sit since high school. Will give it a try today

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