The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga The autonomic nervous system and yoga
Trang 1The Autonomic Nervous System and Yoga Practice
Lisa SchmidtPacific Yoga Teacher Training 500 Hour Program
Final Anatomy Project
May 1, 2010
Trang 2Different methods of breathing and yoga practice can affect the autonomic nervous system and have an impact of the
functions we ordinarily consider to be under unconscious
control Abnormal breathing and movement patterns can
stimulate autonomic reactions associated with anxiety, panic, and other nervous system stimulation By contrast, quiet
breathing and introspective yoga postures influence the
autonomic circuits that slow the heartbeat and reduce blood pressure, producing calm and a sense of stability Our ability
to control respiration consciously gives us access to
autonomic function that no other system of the body can
boast.
Trang 3The Nervous System
Divisions
Trang 4What is the Autonomic
Nervous System?
Trang 5Function of ANS
Trang 6Two Divisions
Trang 7Sympathetic NS
Trang 8The Stress Response
Trang 9What Causes the Stress
Trang 10What Happens Next?
Fight or Flight Response Chronic Stress & Cortisol
Trang 11Parasympathetic NS
Conditioning and Practice
Activates the Rest and
Digest System
Benefits include resting,
digesting, healing
Powerfully affected by
respiration rate, levels of
Oxygen and Carbon Dioxide
Let it go!!
Trang 12Parasympathetic Stimulation
• slowing down of the heartbeat
• lowering of blood pressure
• constriction of the pupils
• increased blood flow to the skin and viscera
• peristalsis of the GI tract
• returns the body functions to normal after they have been altered by
sympathetic stimulation
• The vagus nerves also help keep inflammation under control
Trang 13Role of the Vagus Nerve
Trang 14How Yoga works
Physiological changes to the nervous system
Stimulation of the Vagus nerve through breathing practices
Activation of the Parasympathetic NS
Induction of the relaxation response
Yoga practices repetition which rewires deeply embedded physical, psychological,
or emotional patterns
Meditation observation of behavior patterns
Change, and cognitive learning, becomes realized
Yoga Sutras
III.9: “When after a moment of stability, the mind ceases its fluctuation and remains naturally
quiet, it begins its transformation to stability”
Trang 15Simple Pranayama/Pratyahara
Practice
Use the breath in order to
concentrate on marman points
Big toes, ankles, midcalves, knees, midthighs, perineum, navel, heart center, throat well, middle of the
eyebrows, forehead, and
crown-follow like a ladder up and down
Anchor each center with awareness, using breath
Invoke a favorite deity, teacher,
mantra
Trang 16 Turning mind to positive qualities
Positive qualities become dominant
Negative qualities become dormant, weakened
Negative reactions (fear, anger, anxiety, resentment) that trigger the sympathetic NS less likely to occur
awareness – self-observation - repetition
Trang 17Study: Iyengar Yoga and
Cardiac Rehabilitation
Scientific Study on Yoga’s biological
effects
Improves Vagal Tone
Significantly improved cardiac
autonomic nervous tone
The effect produced on the heart
when only the parasympathetic nerve
fibers (which are carried in the vagus
nerve) are controlling the heart rate
The parasympathetic nerve fibres
slow the heart rate from approximately
70 beats per minute to 60 beats per
minute
Trang 18Yoga Poses for Cardiac Reh abilitation Savasana with support
Supta badda konasana with support
Purvottanasana on bench and
support
Trikonasana with a trestle
Parshvakonasana with a trestle
Ardha Chandrasana with a trestle
Trang 19Yoga Poses for Cardiac Reh abilitation Prasarita Pardottasasana,
concave back
Bharadvajasana, sitting on
chair, hands on trestle
Adho Mukha Shvanasana with support
Shirshasana
Viparita Dandasana with bench
Trang 20Yoga Poses for Cardiac Reh abilitation Dhaanurasana with or without
support
Sarvangasana with chair
Halasana with support
Bhismacharyasana with
support
Setuandha Sarvangasana with support
Trang 21Yoga Poses for Cardiac Reh abilitation Viparita Karani ona Setubandha
Bench
Shavasana with support
From Iyengar Yoga Increases Cardiac Parasympathetic Nervous Modulation
Among Healthy Yoga Practitioners
Kerstin Khattab,1 Ahmed A Khattab,1 Jasmin Ortak,2 Gert Richardt,1 and Hendrik
Bonnemeier2
Evidence Based Complement
Alternative Med 2007 December; 4(4):
511–517.Published online 2007 October 27.
Trang 22Common thread through
these poses
Trang 23How Should I Practice?
Sit each day for five minutes
Deeply rest (restorative pose) each day for twenty minutes
Practice each day three poses
Trang 24Birdwings by Rumi
Your grief for what you've lost lifts a mirror
up to where you are bravely working.
Expecting the worst, you look, and instead, here's the joyful face you've been wanting to see.
Your hand opens and closes and opens and closes.
If it were always a fist or always stretched open, you would be
paralyzed.
Your deepest presence is in every small contracting and expanding the two as beautifully balanced and coordinated as birdwings