the good ones
The entire body. Soccer involves a lot of running which uses a majority of the body's muscles. Minor ones like the ones that wiggle your ears may not be used, however that is up to you.
Swimming uses almost every muscle in your body. It does not just use one main one.
A true soccer player would improve in soccer by practicing dribbling, skills, punting (goalkeepers), throw-ins, traps, Maradonna, everything that the sport soccer uses, or what you would you use in soccer.
The two main types of muscles are voluntary muscles and involuntary muscles. An voluntary muscle is a muscle that you use and work at your own will power such as your biceps or quads. In involuntary muscle is a muscle that is always being uses and you can not direct it otherwise, such as the heart.
The sport that uses the most muscles is ballet!
That Question dont make sense they use or there body so it would have to be almost every muscle
it is an exercise that uses uses muscles from all major muscles. Legs, back, core, chest, and arms are all used.
Probably swimming, uses most of the muscles and seldom causes harm to player or others.