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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Element Fitness Sissy Squat Machine – Gronk Fitness Products
Stop Doing Sissy Squats: 12 Superior Alternatives — Advanced Human Performance Official Website
The hardest unweighted leg movements compiled into a video, and examined in this post : r/bodyweightfitness
WHY THE SISSY SQUAT? - If you're looking for a space-saving machine that is also easy to use without the hassle of loading weights but will strengthen
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Discover 6 Leg Extension Muscles Worked & Alternatives
FFITTECH Leg Extension & Curl FSM67B
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