The Bruegger exercise (some people spell it Brugger) is an exercise that activates the phasic muscles. According to Vladamir Janda some muscles can be categorized as phasic and some as tonic. During our work we typically spend an inordinate amount of time in a flexed forward position. Because of the mostly repetitive nature of our work lives, we tend to underuse some muscles while overusing others. Those muscles that are typically overused or "hypertonic" are those in the tonic category. I list those in "How to Improve Posture".
The tonic category of muscles in the upper body includes the neck extensors, pectoral muscles, upper trapezius, levator scapulae etc. These muscles pull your head forward, shoulders forward and up, arms in, and flex the wrists and fingers. The Brugger exercise uses the antagonistic muscles, those that extend the thumb, fingers, wrist, and extend and externally rotate the shoulders.
Think of the two categories of muscles as generating forces
that should work harmoniously to allow for a balanced posture just as
the bass and treble knobs on a radio should be balanced to create
harmonious sounds. Turn up the bass too high and the sound is no longer
harmonious as the treble gets drowned out. Likewise if the treble is
turned up too high or the bass too low.
By "turning up" the activity in the phasic group of muscles
we can, through reciprocal inhibition "turn down" activity in the tonic
group of muscles allowing for further stretching and a more balanced
posture.
To achieve the starting position:
Exercise:
Perform
this exercise slowly taking a full 4 seconds to bring your hands back,
hold for 2 seconds and take a full 4 seconds to come back to the
starting position with your elbows bend, hands in front of you. Repeat
this for 2 minutes or until you feel you are no longer able to complete
the repetitions smoothly as instructed.