Stand with feet wide apart in a plié squat position with outward toe rotation of about 30˚. The BOSU is between your feet, round side up. Go down to a plié squat position with your knees at about a 90˚ angle.
From the starting position jump up onto the BOSU to a squat position on the BOSU, without rotating your toes to the sides. Keep your body core firm and avoid bending forward too much. In the lower position your pelvis comes to knee level. Jump from the squat on the BOSU and simultaneously slightly spread your legs to land on the floor in a plié squat. Inhale in the lower position and exhale at the jump. Do the required number of repetitions alternating both versions of the squat.
Pay attention to body posture, a firm body core, a neutral position of your pelvis and eliminate bending at the waist.
Keep your knees in the direction of toes throughout the entire movement to avoid knee swinging during the jump and landing. The knees should not go beyond the fictitious toe line in the lower position of both squat versions.
Avoid excessive bending forward when doing the movement.
Use your hands in a natural way along with body movement and to keep balance on the BOSU.
Exercise sideways to the mirror to check and correct the technique.
To master the correct technique it is better to first learn the correct posture in a static squat and plié squat.