circumax-heavy-training-equipped
Mike explains that in raw lifting, you can build strength effectively using doubles and triples without maxing out. However, in equipped lifting, the gear is designed to store and return energy only when the bar is heavy enough to deform the suit/shirt deep into the movement. If you try to train with 70-80%, the suit either doesn't stretch at all on the descent, making you unable to hit depth, or doesn't provide the usual pop on the ascent, leading to a completely different technique. Therefore, Louis Simmons' insistence on frequent heavy training (what he called 'circumax') wasn't reckless; it was a necessary solution to the physics of specialized equipment. The Westside method's sustainability came from rotating exercises and using accommodating resistance (bands/chains) to manage fatigue while still exposing lifters to peak forces.
The mechanical properties of supportive gear (elastic rebound, stopping power at depth) are load-dependent: below 90% the suit/shirt doesn't stretch enough to provide the assistive force curve, altering movement pattern and feel. Consistent heavy loading also drives neuromuscular adaptations specific to maximal force production and stability under extreme loads, which lighter work cannot replicate.
Your equipment, your bench shirt, your squat suit, your deadlift suit does not work properly as designed unless you are in excess of 90% of your one rep max.

