Seated No Countermovement Box Jump
The seated box jump is a great lower body power variation to use when look to develop starting power. By sitting down it prevents the use of stretch reflex and requires the athlete to only produce power with concentric effort.
Execution: Be sure that the athlete is starting in a loaded position with their feet firmly planted on the floor and hands back at the hips. Don’t allow them to lift the feet or rock to generate momentum before jumping. Land softly on the box with knees bent and feet facing straight ahead.
I personally like using this variation with strength athletes, recreational lifters and general population clients. It can be a great way to develop single rep power while also providing variation for the frequent general population trainee.