.

Very nice.

 

It’s an okay piece of equipment. It’s not a miracle machine and is not the best thing since sliced bread. If you want to use it, or if you enjoy using it, then that’s fine. You don’t need a huge range of motion on it.

I wouldn’t only use this machine as your single core exercise. More important is being able to brace your core under heavy load and have the ability to brace your core during all exercises, such as pull-ups, pulldowns, squats, deadlifts, and overhead presses. It’s one thing to be able to feel your abs while sitting in place on this machine, but are you able to feel your abs working during bigger movements, such as squats and jumping? If you can only feel your abs sitting on this machine, then that’s no good. I’m not a big fan of doing an entire workout sitting on machines. I notice a lot of fat people sit while at the gym. Seems to me that if they just come to the gym to sit and lift light weights, they might as well just stay home, sit on their sofa, march their feet in place, and lift some carpenter pencils overhead.

Yes, many fat people use this machine at my gym too. But so do many in shape folks as well. A lot of fat people eat a lot of pizza and burgers. But so do a lot of fit folks.

AI edit.

Ai says
Unlike many contemporaries who chased higher rep schemes of 10 to 12 for all exercises, Levrone strongly believed that his dense muscular growth came from going heavy with strict form.[1] His standard approach paired low-rep compound lifts with higher-volume accessory work to maximize both hypertrophy and strength. The breakdown of his rep ranges includes:

Compound Movements: Kept strictly in the 6 to 8 rep range (sometimes going even lower for maximal strength tests on exercises like the bench press or squat). This allowed him to move immense amounts of weight—such as bench pressing over 450 to 500 pounds—while stimulating deep muscle fibers.[1]


Isolation and Accessory Exercises: Typically performed in the
8 to 12 or 12 to 15 rep range (such as cable crossovers, pushdowns, lateral raises, and preacher curls) to flush the target muscle with blood and secure high set volume

Ai then goes on to say
Using lower weights with higher repetitions does not inherently target a different physical part or region of a muscle simply because the weight is lighter.[1] Instead, whether you lift a heavy weight for low reps or a light weight for high reps, the anatomical path of the movement—determined by joint angles, grip, and the line of pull—remains the primary driver of which region or head of a muscle is emphasized.


so it basically contradicts Levrones low weight for deeper muscle fibres

A muscle has no idea what you are lifting, it responds to intensity.

For the benefit of the new members, please define "intensity".