Quadriceps
Calves, Glutes, Hamstrings, Core
Watch Tutorial
https://www.youtube.com/shorts/JmQMNabd_LY
https://www.youtube.com/shorts/iWTg-cRo8lk
https://www.youtube.com/shorts/uXPS2eO9JMY
Hold plate against chest.
Hold support with free hand.
Stand feet shoulder-width, rise onto toes.
Bend knees, lean torso back.
Keep line from knees to shoulders straight.
Lower until knees near floor.
Push through quads to return.
Repeat.