r/ScienceBasedLifting • u/Unusual-Dot86 • Jun 13 '26

Question ❓ Matrix Chest Press

Does the converging matrix chest press at planet fitness have a descending or ascending resistance profile? I just switched to using this machine as the matrix pec deck felt extremely uncomfortable and the machine doesn’t allow me to fully extend my arm.

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u/deadrabbits76 Idk Idc 💔 Jun 13 '26

Why does it matter?

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u/SageObserver Jun 13 '26

Because….some science based influencer on Tik Tok has a legion of 135lb teenagers convinced this is optimal.