Nice input on this topic.
Breathing and in particular " core stability" is a super interesting topic, when we look in fitness in general.
Six packs and looks dramatically outweights reality on core strength.
The second interesting part is , that even as we type this ,there are very great and influential coaches and exercise physiologists out there , strongly educate people, that respiration or the respiratory system as such is never a limitation in healthy people.
So it is nice to see, that some practical adjustment and some feed backs from certain people may at least start an open discussion in this direction.
Here some small thoughts to it.
If we talk a battle with historical ideas on lactate, wait ans see how we will have an interesting battle with core muscles and ideas.
Journal of Physiology (1997), 505.2, pp.539-548
Contraction of the human diaphragm during rapid
P. W. Hodges *, J. E. Butler, D. K. McKenzie and S. C. Gandevia t
Prince of Wales Medical Research Institute, Sydney, Australia and *Faculty of Health
Science, The University of Queensland, Brisbane, Australia
Diaphragm Recruitment during Nonrespiratory Activities
FADI AL-BILBEISI and F. DENNIS McCOOL
Departments of Medicine, Brown University Medical School, and Memorial Hospital of Rhode Island, Pawtucket, Rhode Island
Core Stability from the Inside Out
The core stabilization concept keeps being a hot topic for discussions. After more than a decade of core-training frenzy there is still very little evidence that core-training actually produces any positive effects. There is no universally accepted definition of what the make-up and function of the core is.
It all started with the Transversus Abdominis and the abdominal hollowing theory, where people were instructed to pull the belly-button in towards the spine when exercising. It has since been shown that abdominal bracing (tensing the abdominal wall as if preparing for being punched in the stomach) is superior to abdominal hollowing in regards to providing stability for the lumbar spine. Abdominal bracing is good, but it is still approaching the core from the outside in. The abdominal wall is the focus of the training. Real core activation has to come from the inside out.
Postural activity of the diaphragm is reduced in humans when respiratory demand increases
Paul W Hodges, Inger Heijnen, and Simon C Gandevia
Prince of Wales Medical Research Institute and University of New South Wales, Sydney, Australia
Corresponding author P. W. Hodges: Department of Physiotherapy, The University of Queensland, Brisbane, QLD 4072, Australia. Email: firstname.lastname@example.org
Received April 27, 2001; Accepted August 29, 2001.