I tried 25 jump squats into stabilization after 90 minutes of walking and wish I did them before walking. Those are really hard when you're already fatigued.
Got 645 reps here with those high knees in the cardio bucket. Solid all around workout making me look like I'm lazy.
Yup squat jumps sure are hard and you feel kind of numb in your legs if you do many reps of squat jumps. But effective exercise though