‘Multidirectional Lunges’ Dance or everyday activities for that matter, are never in the linear plane, in other words front on. This is a fantastic exercise to strengthen your butt muscles and your legs for movements in the multidirectional plane. This trains us to use our butt muscles more when we engage in movements such as turning, stepping to the side, traveling moves etc to help stabilize our knees in movement.
References & Resources:
‘How to Eat, Move and Be Healthy’ By Paul Chek
‘Conditioning for Dance’ By Eric Franklin
 
Fig.1
Fig.2
Fig.3
Fig.4
Fig.1 -With core activated by drawing in belly button, lunge forward, bending the rear leg ensuring it is in line with your hip. Arms reaching overhead are optional otherwise leave by your side. Push off front foot and return to starting position.
Fig.2 - Lunge to side at a 45 degree angle. Ensure knee of front leg tracks over 2nd toe of same foot.
Rotate torso and reach arms to the side of bent leg.
Fig.3 - Lunge to side, extending opposite leg. Arms reaching
to the side of bent
 leg. Slight rotation
of torso.
Fig.4 - Lunge to the rear at 45 degree angle. Repeat arms.
Return to starting position and repeat on other leg.
 
Tips:
Ensure that your front knee doesn't lean over your front foot by bending your rear leg and maintaining your torso upright when lowering your body. For those who wish a challenge, hold a medicine ball or dumbbell as you’re rotating you torso! This lunge is more challenging the the standard lunge forward so take your time and only rotate your torso within your range of movement.