The wall sit is a bit different from typical squats since you're holding a static or isometric position for a certain period of time, rather than working through an entire range of motion. (verywellfit.com)
So learn how to master that solid, isometric position before you move onto the push - up part. (dailyburn.com)
Then you can try and launch the same isometric position without the # 7000 vibrating surface and you will get some lactic acid accumulated in muscles engaged and will burn some calories. (personaltraining4u.net)