The forward lunge for Slastix is great to strengthen the legs specifically targeting the hamstrings, quadriceps, hip flexor muscles, gluteus maximus, and adductor muscles in your inner thighs. This exercise improves your core stabilization by engaging the stabilizer muscles in your core and back. This can help with mobility and injury prevention Learn more about properly executing this exercise with the video above.
Regression
Make this exercise easier by moving farther away from the anchor. This will increase the amount of tension that is helping pull you up out of the lunge.