This article is going to show how u can do weight watchers for free, but first off, lets see why weight watchers is so successful. The 4 pillars of success; Food, exercise, behavior & support.
1 Hip muscles. Lunges work all of the gluteal muscles in the hips, primarily the gluteus maximus that is used to extend your hips. Taking large steps during a lunge can further engage this muscle. The gluteus minimus and gluteus medius are also used to stabilize your body throughout the lunge.  Thigh muscles.
This exercise can be utilized to work out your hips, butt and several other muscles. All three of the hip, or gluteal muscles, are worked out during lunges. The gluteus maximus is the primary muscle worked and is used extensively to extend the hips. You can target this muscle more intensely during the exercise by using very large steps.