Basketball requires quickness and attentiveness, but it also requires a lot of power. Basketball exercises most of the muscles in the body, but the arm muscles are the most strongly depended upon while shooting a shot. Even though shooters say that they don't feel their arms, they actually use them during shooting. Shooting a ball requires strength. Stronger muscles can exert more force over a longer period of time than weaker muscles, so it makes sense that people who practice shooting often report feeling stronger arms after training. However, not all people with strong arms are good shooters; conversely, not everyone with weak arms is a poor shooter. There are many other factors involved in being a good shooter, such as hand-eye coordination and reflexes, but muscle strength is still very important. There are two types of shots used in basketball: jumpers and layups. Both require strength to be effective. Jumpers are usually pulled up from behind the arc (distance between the foul lines is about 21 feet or 6.4 m), while layups come down from above the free-throw line (about foot-and-a-half or 5 meters). Although both shots depend on strength, there are certain movements used for each type of shot that could be done before shooting to improve your chances of making the basket.