Sissy Squat Machine Superior Leg Extension Substitute for Strong & Defined Quads & Glutes

LEG EXTENSIONS DONE PROPERLY: Think of this exercise as a mix of reverse knee extensions and hack squats. Works amazingly well to target all 4 heads

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I hate squats, will leg extension and weighted lunges work just as well in building muscle? - Quora

The hardest unweighted leg movements compiled into a video, and examined in this post : r/bodyweightfitness

Element Fitness Sissy Squat Machine – Gronk Fitness Products

FFITTECH Leg Extension & Curl FSM67B