The Front Squat Position Walking Lunge is a great exercise to develop overall strength - including explosive strength for sprinting and dynamic stability. Moving forward makes this exercise, used correctly, a dynamic correspondence exercise. Dynamic correspondence exercises enhance sport performance by simulating the amplitude, direction, force production, movement dynamics and muscular contractions of the movements you make on the playing field. 
The Front Squat Position Walking Lunge reinforces explosiveness at the hips – a must have for sprinting, throwing, and batting - strengthens up the legs and core, and even the upper body from the shoulders to the wrists. This baseball exercise requires a combination of mobility, static stability, and dynamic stability – working your body as a whole unit rather than separately, just as you do in virtually all sport movements. Remember, If your legs and core are not strong and stable enough, you will not throw or hit as hard and will be more susceptible to shoulder and elbow injuries.
The Front Squat Position Walking Lunge is a triple extension movement. When you move forward with your leg, your ankles, knees, and hip joints must extend simultaneously. Those same joints have to work together when you sprint to first base or make that diving catch, for example.