The expansion of the rib cage (without the inhalation) sucks the abdominal muscles and viscera up into the thorax and hollows the belly (some teachers say to actively but slowly lift abdominals, or navel, toward the spine).
The sternum can not fully ascend on inspiration, and
expansion of the rib cage is limited anteriorly.
Not exact matches
She then began training Canadian clients and physiotherapists in hypopressive technique — a series
of flexed postures and movements, breaths, held exhalations and
rib cage expansions.
While the external intercostal muscles are the primary movers
of the
ribs during inhalation, many other muscles assist with
rib cage expansion and sternal elevation, including the rhomboids, middle and lower trapezius, and serratus anterior (5).