Breaking the mould of human anatomical understanding

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    Breaking the mould of human anatomical understanding - Presentation Transcript

    1. Presents“Important things nobody is telling us...”
      Gary Ward
      “Breaking the Mould of Human Anatomical understanding”
      www.anatomyinmotion.co.uk
      FOllow us on Facebook and Twitter
    2. Introduction
      • Neutral nonsense
      • The ‘Centres of the body’
      • Joint centre
      • Muscle centre
      • Centre of mass
      • Centre of gravity / base of support
      • Centre of pressure
      • Centre dictates all motion, all compensation and all injury
      • Centre responds to external influences on the body
    3. Neutral
      A) The concept of neutral.... Is nonsense
      When we are considering the body in motion
      B) Neutral is a static concept
      We can stand in neutral – we can’t move in neutral
      C) We have to move away from neutral to even consider taking a step
      D) Motion is the journey through neutral
      Neutral is purely a centre point between extreme ranges of motion
    4. The Centre Point
      Consider neutral at the following structures
      The foot
      The pelvic girdle
      The spine
      The shoulder girdle
      When each structure is in neutral – the body holds perfect posture.
      Postural anomalies exist away from neutral
      • Cervical
      • Ribcage
      • Pelvis
      • STJ
      Joint Centres
      Each joint moves in three planes of motion: in 3D
      Sagittal, Frontal and Transverse
      Joint centres enable the full range of motion to be experienced on both sides of centre
      It’s like a see saw
      If this was a scoliotic spine – neutral would be impossible without height adjusters in the heel
      Joints always have a centre – even if it’s away from neutral
    5. Muscle Centre
      Muscle output and muscle length are both dictated by joint range of motion
      Less or more ROM at a joint affects muscle function negatively
      Muscle function is optimised by the joints potential for passing through centre
      Long and short muscles affect the body’s ability to return to centre and limit the body’s potential for optimum output
    6. Centre of Mass
      Biomechanics in Clinic and Research; Jim Richards; 2008
      A) The centre of mass of the body is the point where all of the mass can be considered to act
      B) The Body’s centre of mass lies approx 1” to 2” below the naval & roughly at L4/L5
      C) It is the average point of mass / the sum of all joint and muscle centres
      D) Perfect neutral = perfect C of M = perfect posture
      E) Perfect Centre = ability to move away from and return to centre at all joints
    7. Centre of Gravity & Base of Support
      A) Base of Support (B of S) is the area that covers the surface on which we stand inside of which the Centre of Gravity lies
      B) Our centre of gravity (C of G) sits inside the base of support (ideally in the centre) between the two standing feet
      C) As we stand on one leg, the C of G shifts in a stable foot to the centre point of the standing foot
      D) On one leg – B of S is the area around one foot
      E) Static and dynamic balance is achieved when C of M moves over a stable B of S
      F) When the C of M moves outside the B of S: we fall over unless we can react
    8. Interaction of C of M, B of S & C of G
      Here the pronating right foot drives the C of M away
      The net result is that both feet are ‘off-centre’ , mobilising the
      C of M and affecting change in the whole skeletal posture of the body
       Feedback from the feet is crucial to C of M alignment, Joint ROM and consequently Muscle length tension relationships
    9. Centre of Pressure
      A) The centre of pressure is the mean average contact point on the sole of the foot as the foot passes from heel strike to toe off.
      B) The Centre of pressure tracks the position of the body’s centre of mass and therefore has an impact on the whole joint and muscle system as it orbits perfectly around the centre of mass to maintain a stable and efficient system
      C) The C of P gives us an accurate determination of joint motion in the gait cycle as informed by the feet
    10. So what...?
      #1:Centre of Pressure shifts the Centre of Gravity
      #2: Centre of Gravity lies directly beneath C of M suggesting this too is mobilised
      #3: All joints orbit around the C of M at all times
      #4: All muscles respond to joint motion
      • Let’s take a closer look
    11. We are unstable – thankfully
      Left and bottom right:
      Base of Support on single leg
      Lies directly under C of M
      Top right:
      Base of support in standing
      Lies directly under C of M
      Can you experience that?
    12. Human Beings can’t stand still!!!
      Our inherent unstable environment
      60% above the waist
      40% below
      Suggests instability
      Without an auto-supporting internal system; we would spend most of the time on our arse... And I don’t mean in a chair!
      If space: stand on one leg and experience it
    13. Instability
      The key to understanding Motion anatomy is trusting & knowing INSTABILITY
      Instability mobilises our C of M
      Instability creates a ‘wobble’ or movement in all joints
      As the C of M moves away from our natural centre what stops the human body from falling over?
      Muscles learn to react and control this ‘wobble’
      Muscles are responsible for managing the joint system and returning the body to centre
    14. The Flip Side
      Anatomy in Motion’s rule of thumb:
      JOINTS ACT... MUSCLES REACT
      ...In motion...
      This defines the eccentric model of anatomy
    15. A new tool?
      There are TWO sides to EVERY story
      Anatomy is no different
      Eccentric motion and concentric motion
      Stabilise and mobilise
      Static and dynamic
      We live in a world of polar opposites
      – black, white and shades of grey in between
    16. Eccentric Motion
      A)Joints Act... Muscles React
      B)Lengthening muscles & 3dSling systems/contractile chains
      C)Dynamic – whole body
      D) Mobility  stability
      Eccentric motion is experienced by the body in motion – muscles and joints operate in this way and the gait cycle feeds the whole body with information
    17. Concentric Motion
      A)Muscles Act... Joints react
      B)Shortening muscles (bicep curl)
      C)Isolated – muscle groups
      D) Stabilitylimiting mobility
      Concentric activation has no impact on C of M – communicates zero to the joint system -and thus leads to the poor posture we can associate with weight lifting
    18. What are we observing?
      A )The interaction between our external environment and our internal environment.
      B)Internally joints and muscles react to each other’s stimulus YET both ultimately are reactors.
      C)They react to the world around us, to gravity, the ground and momentum
      The Centre’s of Mass, Pressure & Gravity are all relative to actionoutside of the human body.
      They react to external stimuli
    19. A bit of energy biomechanics
      Shock, Vibration & Energy (measured in frequency waves) pass through the body and are largely responsible for the postural structure we hold.
      Our musculo-skeletal system is designed specifically to absorb this vibration otherwise known as shock
      Ultimately we are observing the body’s ability to record & measure VIBRATION
      The feet communicate the requirement of the rest of the body to the subconscious brain when we are in motion
    20. Let the Feet do the talking!
      A)The feet measure and record vibration in the body
      B)The feet are the only part of the body in contact with the outside world when in motion (except crawling or sniping – though these too are eccentric motions: they just have a different C of P!)
      C)The Centre of pressure plots a specific path through the feet during gait that dictates our whole movement
      D) Our feet communicate our position in space and time to the subconscious areas of our brain responsible for our movement patterns
    21. Let the Feet do the talking!
      Our Feet give FEEDBACK,
      Our Feet COMMUNICATE,
      Our Feet TALK to us...
      ... If we let them
      Let’s find out how?
    22. Static stance
      On two legs my feet dictate the position of my C of M
      If one foot pronates more than the other, the C of M will shift away from the pronating foot – TRY IT
      That small pronation equates to a large amount of whole body motion in various planes of motion.
      The motion of the C of M demands a response from every other joint.
      Thus , a small amount of pronation creates a whole body response
    23. Dynamic – InMOTION (gait)
      A) In the same way a small amount of excessive pronation in gait will create a whole body response.
      B) Different on one side to the other? (highly likely)
      C) This imbalance is far greater than a muscle imbalance .
      This is a whole body split.
      D) Each leg will react differently to the ground and require a different response from the whole body for each step
      This easily leads to compensation, injury, pain & reduced potential
    24. Joints
      As discussed
      A) Joints move in three planes of motion
      (sagittal, Frontal & transverse)
      B) Joints have perceived range of motion (ROM) dependant on their awareness of ‘centre’
      C) ROM is fully available when the joint is perfectly aligned
      D) ROM is reduced when centre is compromised
    25. Muscles
      A) Muscles attach to bones and pass over joints
      B) In the Eccentric model where joints act and muscles react:
      Joint range inhibits potential muscle length
      NOT THE OTHER WAY AROUND
      C) In the Concentric model where muscles act and joints react:
      Muscle length tension affects the joints
    26. Correction
      This means:
      A) We can stretch muscles to get range at a joint (concentric model)
      OR
      B) Mobilise joints to stretch the muscles
      (eccentric model)
    27. Our subconscious habits
      Scenario (B) takes into account and mobilises the C of M and all joints involved while (A) simply stretches a muscle for short term gain
       What now happens to the stretched muscle when we get back on our feet?
      Old habits die hard: The unaltered gait pattern of the feet dictate the C of M, the surrounding joints and consequently the muscles too
      As it reverts back to it’s “in motion” length
       You’ll need to stretch it again and again and again
      ...This, ironically, is exactly what we do....
    28. Conclusion
      A) The C of M moves as we move, the C of G follows
      B) The C of P is relative to the foot’s ability to move through centre
      C) Pronation and supination for example sit either side of the foot’s centre – both being vital for effective human motion
      D) Thus the feet dictate the overall position of the centre of mass
      E) The feet have been tracked through the myofascia and are proven to be connected to the whole body & all joints
       All joints orbit around the C of M
      When was the last time you exercised
       your feet?
      Your clients feet?
       Or more importantly taught feet to subconsciously find centre?
      Mobilising joints gives an extra dimension to your training programmes and results potential
    29. Incidentally
      The next time someone suggests that the hips dictate the potential of all joints in the body or describes the feet as ‘slave joints’...
      ...have an open mind and remember there are always two sides to every story... An alternative to consider...
      AiM teaches 3d stretching, 3d Anatomy and the full ‘FINDING CENTRE’ course
      “...QUOTE LECTURE TITLE WHEN BOOKING BEFORE END OCTOBER FOR A 10% discount...”
      For more information visit www.anatomyinmotion.org
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