ab crunches work out your ab muscles.
Using an exercise bike works your glutes and hip flexors, plus leg muscles.
This depends on what muscles you want to exercise. Your legs contains many muscles including quadriceps, and tibialis. There are few exercises that can at the same time exercise them all. Probably one of the only exercises that can do that is swimming, because swimming works on all your muscles.
Because exercise works Ur muscles which causes the fat cells to shrink! :)
Skateboarding works a lot of different muscles because it is indeed a sport. Its a great form of exercise because it works muscles you may not normally use, especially when doing tricks.
Aerobic exercise
Primarily the lower chest muscles
The gazelle exercise machine works the entire body, such as the glutes, thighs, calves, biceps, triceps, abdominal muscles, deltoids, and pretty much anything else in your body.
it is an exercise that uses uses muscles from all major muscles. Legs, back, core, chest, and arms are all used.
Womens gymnastics good exercise is a good and healthy way to workout. The best way to get a good exercise is gymnastics. It works out the whole body and tones the muscles.
One can use an exercise ball in various ways to assist in getting into shape. The benefit of the exercise ball is that it works ones core muscles, which are muscles in ones stomach that most people do not use. The ball assists with balance and strength.
Core exercise is important, because it help strengths the core muscles. Core muscle training will also strengthen other muscles during the training.