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Mouth vs nose

Some exhale through the nose, some through the mouth and some through both at the same time. Both is somewhat better (it's faster, deeper and prevents water coming in) but maybe needs more practice to be done properly.

Rhythm

Anything from 1:1 to 5:1 is very common but 3:1 is considered the most efficient* (3:1 is 3 strokes for 1 breath). When you use even strokes (2:1, 4:1 etc) it is very difficult to keep a straight path but other than that (as far is I know) it is a matter of style and personal preference.

*I think olympic freestylers use 2:1 though*I think olympic freestylers use 2:1 though

Breathing side

Always breath to the side of the arm that is out of the water.

edit: I'm not sure if you are asking that but you should DEFINITELY breath out while under water; usually straight down.

Mouth vs nose

Some exhale through the nose, some through the mouth and some through both at the same time. Both is somewhat better (it's faster, deeper and prevents water coming in) but maybe needs more practice to be done properly.

Rhythm

Anything from 1:1 to 5:1 is very common but 3:1 is considered the most efficient* (3:1 is 3 strokes for 1 breath). When you use even strokes (2:1, 4:1 etc) it is very difficult to keep a straight path but other than that (as far is I know) it is a matter of style and personal preference.

*I think olympic freestylers use 2:1 though

Breathing side

Always breath to the side of the arm that is out of the water.

Mouth vs nose

Some exhale through the nose, some through the mouth and some through both at the same time. Both is somewhat better (it's faster, deeper and prevents water coming in) but maybe needs more practice to be done properly.

Rhythm

Anything from 1:1 to 5:1 is very common but 3:1 is considered the most efficient* (3:1 is 3 strokes for 1 breath). When you use even strokes (2:1, 4:1 etc) it is very difficult to keep a straight path but other than that (as far is I know) it is a matter of style and personal preference.

*I think olympic freestylers use 2:1 though

Breathing side

Always breath to the side of the arm that is out of the water.

edit: I'm not sure if you are asking that but you should DEFINITELY breath out while under water; usually straight down.

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source | link

Mouth vs nose

Some exhale through the nose, some through the mouth and some through both at the same time. Both is somewhat better (it's faster, deeper and prevents water coming in) but maybe needs more practice to be done properly.

Rhythm

Anything from 1:1 to 5:1 is very common but 3:1 is considered the most efficient* (3:1 is 3 strokes for 1 breath). When you use even strokes (2:1, 4:1 etc) it is very difficult to keep a straight path but other than that (as far is I know) it is a matter of style and personal preference.

*I think olympic freestylers use 2:1 though

Breathing side

Always breath to the side of the arm that is out of the water.