Quadriceps, Glutes
Calves, Hamstrings, Core
Watch Tutorial
https://www.youtube.com/shorts/tQrRH2eyV-E
https://www.youtube.com/shorts/sXSMzukW-is
https://www.youtube.com/shorts/TbESH4eGL7I
https://www.youtube.com/shorts/52cwLAr1uII
https://www.youtube.com/shorts/4aRja4b4Ss4
https://www.youtube.com/shorts/3ODQAlh-Xj8
https://www.youtube.com/shorts/Y9Mj_O_kZ4g
https://www.youtube.com/shorts/bTSUXIzUsPs
https://www.youtube.com/shorts/tIdtpJd3EWo
Stand on box edge (12-18 inches).
Step/drop off box (don't jump down).
Land softly on ground, both feet.
Immediately upon landing, jump vertically as high as possible.
Minimize ground contact time.
Land softly again.
Reset and repeat.