1. U should do some stretching b4, and lunges hits ur glutes, hips, and thighs. make sure u do warm up b4.
2. standing Calf raises, seated calf raises, Lie on the leg press machine and move the weight using ur calves and keep a sliight bend in the knees, Donkey raises,
3. I think u mean ur forearm, u can do wrist curls using db or barbell.
