Primary exercise for the Hamstrings (Increase length), Glutes, and Quadriceps. This video aims for the MTNTOUGH Athlete to analyze their movement in the Walking Lunge biomechanically. Video your Lunge from the front and side angles to ensure you have a properly Braced Core (360 degrees), and Knees pushed out, and, most importantly, active feet (tripod). Stop before the knee touches the ground to prevent rebound and bruising of the knee. Biomechanical alignment is shoulder, hip (drop straight down), knee (front knee should be parallel to the surface, vertical shin) alignment. Proper stride length will ensure the back knee is within 8" to 14" behind the front heel. If you seek to strengthen the core, only carry the load one arm at a time. Apply the appropriate exercise prescription to turn your weakness into strength if you find a deficiency.