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.
When the motion is in the opposite direction, as with reverse lunges, the patella tendons are no longer taking the brunt of the decelerating force, which means you can focus more on the muscles youâre training than the achy knees that would otherwise come later. The Lunge Zone.