Dr. Paul Hodges undertook the difficult task of explaining the intricate connection between the respiratory / pelvic floor / and abdominal muscles. I have the difficult task of summarizing what he presented! Dr. Hodges has a presentation style I really enjoyed – pose a question first and then proceed to address that question.
Question 1 – Do the muscles of respiration and continence contribute to postural control of the trunk?
Yes. Many of the muscles of the trunk (diaphragm, scalenes, erector spinae, intercostals, pelvic floor muscles) and pelvic floor (anal, periurethral, vaginal) are active during breathing and they are modulated in concert with breathing. Dr. Hodges provided evidence of this by presenting recordings from many systematic studies which measured the all of the above muscles in tasks such as respiration, modifying posture, and when a mass was unexpectedly dropped into a box held by the participate.
Question 2 – Can postural control, respiration, and continence be coordinated?
It seems that concurrent modulation of all these muscles is normal and that tonic and phasic activity can be modulated concurrently by the nervous system. In chronic respiratory disease, posture is compromised with greater disturbances in the ability to balance in the medial/lateral direction (trunk and hip stability). One obvious example of coordination is when someone is sprinting or lifting something heavy – you don’t breath for a short time (Dr. Hodges had us stand on our toes, reach up as high as we could, and notice how we held our breath).
In low back pain, postural function is disturbed for sure. But why? It seems that there is reduced activity of the transversus abdominis muscles, which leads to delayed activation, less tonic activity, muscle atrophy, and cortical reorganization.
Question 3. What are the conseqeunces of poor coordination of postural muscles?
The immediate implication is that breathing disorders, back pain, incontinence are linked together. Sure enough, Dr. Hodges presented results from an epidemiological study showing that those who had a breathing disorders were more likely to develop low back pain!
Question 4. What are the implications for rehabilitation?
For low back pain:
For pelvic floor disorders:
For breathing disorders:
Although Dr. Hodges used the specific example of low back pain rehabilitation, the principles apply to other areas
Conclusions
Patients will present with a range of issues, but it is impossible to separate the systems. You must look at your patients as a whole and develop a strategy that addresses all of their problems.
Bottom line – YOU MUST BE A MULTISYSTEM THERAPIST
Question 1 – Do the muscles of respiration and continence contribute to postural control of the trunk?
Yes. Many of the muscles of the trunk (diaphragm, scalenes, erector spinae, intercostals, pelvic floor muscles) and pelvic floor (anal, periurethral, vaginal) are active during breathing and they are modulated in concert with breathing. Dr. Hodges provided evidence of this by presenting recordings from many systematic studies which measured the all of the above muscles in tasks such as respiration, modifying posture, and when a mass was unexpectedly dropped into a box held by the participate.
Question 2 – Can postural control, respiration, and continence be coordinated?
It seems that concurrent modulation of all these muscles is normal and that tonic and phasic activity can be modulated concurrently by the nervous system. In chronic respiratory disease, posture is compromised with greater disturbances in the ability to balance in the medial/lateral direction (trunk and hip stability). One obvious example of coordination is when someone is sprinting or lifting something heavy – you don’t breath for a short time (Dr. Hodges had us stand on our toes, reach up as high as we could, and notice how we held our breath).
In low back pain, postural function is disturbed for sure. But why? It seems that there is reduced activity of the transversus abdominis muscles, which leads to delayed activation, less tonic activity, muscle atrophy, and cortical reorganization.
Question 3. What are the conseqeunces of poor coordination of postural muscles?
The immediate implication is that breathing disorders, back pain, incontinence are linked together. Sure enough, Dr. Hodges presented results from an epidemiological study showing that those who had a breathing disorders were more likely to develop low back pain!
Question 4. What are the implications for rehabilitation?
For low back pain:
For pelvic floor disorders:
For breathing disorders:
Although Dr. Hodges used the specific example of low back pain rehabilitation, the principles apply to other areas
Conclusions
Patients will present with a range of issues, but it is impossible to separate the systems. You must look at your patients as a whole and develop a strategy that addresses all of their problems.