Well, if your familiar with any okinawan or chinese arts you may have heard of the sanchin kata.
The sanchin kata is basicly a set of moves (whitch often vary style to style, school to school) in whitch as you do them you use 'dynamic tension', also known as simply 'sanchin breathing'.
To do sanchin breathing alone (as in just the breathing) you must tense every muscle possible in your tandem (abdomen) as hard as you can, most people often tense their throat as well but I think this is optional, as you tense you breath in slowly until your lungs are cpmpletly full, then rembering to keep the tension, breath out, keeping everything tense and focused on the breathing.
While doing a kata you would do this breathing on every move, from start to finish.
How im thinking of applying this to meditation is rather than doing normal breathing *breathe in, breath out*, Doing sanchin breathing instead. Due to the large amounts of homework Ive been getting, Ive not had the time to do any meditation of any kind, when I do get the time Im sure It will be worth it.
The way of the warrior is a resolute acceptance of death. -Musashi