Freestyle swimming is a good example of exercise because it works various muscle groups. Other forms of swimming are also good exercise.
Because of the resistance of the water. However, in exercise terms, swimming is far better than other sports as it is non jarring.
Freestyle swimming came about because some people can swim really quickly but not necessarily in one style. Freestyle swimming allows people to swim in varied styles as long as they beat a certain time trial.
Many people prefer freestyle. They prefer it because it is efficient. They also prefer it because it it is fast.
freestyle is used themost, partly because its the easiest and partly because it's the fastest. Butterfly is just as fast as freestyle but it tires you out alot faster.
Swimming because there is more resistance
Swimming is the best exercise because it's a total body workout.
Because you have to move around. Usually any physical movement is exercise.
Swimming, Surely is the best exercise for asthma. It will not completely cure the disease but will definitely reduce it. Because by doing swimming it will be a good breathing exercise.
Swimming is a good exercise because swimming recruits all the major muscle groups,including the shoulders, back, abdominals, legs hips, and gluts!!
because it helps build your muscles
it depends on how you define strenuous. swimming is much better for your joints, as well, swimming probably uses more musles than running, as it is a whole body exercise. when swimming, you are forced to hold your breath, which exercises yor lungs and therefore the rest of your body much more than if you were running. there is also much more resistance when swimming (because of the water) making if much harder to swim a distance (ie.400m) than it would be to run it. (the world record time for 400m freestyle is 3:40.7, whereas, in track, it's 00:43.19 so obviosly, its alot more difficult to swim.)