Loading the lower limbs in a unilateral fashion with emphasis on absorbing forces rapidly. This exercise is a progression from the commonly used Bulgarian split squat. It has been adapted and coached so that the athlete has to rapidly dissipate the landing forces on a single leg.
Training the hip extension musculature to control rapid flexion is a significant part to injury prevention. Fatigue in the system can create altered mechanics throughout the loaded sequence and lead to higher risk of injury.
The Jump height of both male and female dancers in the 21st Century is often a talking point of modern day choreography. However, if jump height is a common feature then we must also train landings for improved saftey and efficiency of movement.
Practise your landings.