Posture and Movement System Margo Prim Haynes, PT, DPT, MA, PCS Mary Rose Franjoine, PT, DPT, MS, PCS

Prim Haynes & Franjoine Posture and Movement Functional skills are controlled by two different but complementary subsystems, one for posture and one for movement. 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine What is Posture? ‘ 2009 Prim Haynes & Franjoine

Functions of Postural System Maintain alignment of the body by overcoming the effects of gravity in all positions at all times (postural tone) Preserving joint integrity Maintain COM within BOS Prepare the body for movement 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine What is Movement? 2009 Prim Haynes & Franjoine

Function of Movement System Provide mobility of various body segments in space. Initiation Continuation / (sustain) Termination Allows expression of well timed, coordinated, sequenced fluid movement 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine To Climb 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine we need both systems to work efficiently but most importantly…… ……together 2009 Prim Haynes & Franjoine

What functions allow for each system to be unique and role specific? 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine The Role of the Muscles Postural System Movement System Configuration Bi Pennate Multi Pennate Uni- Pennate Penniform Attachment Angular Parallel Fiber Length Short & Broad Long & Slender 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine Multifidus Muscle Postural System http://en.wikipedia.org/wiki 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine Movement System http://en.wikipedia.org/wiki 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine Gluteus Medius http://en.wikipedia.org/wiki 2009 Prim Haynes & Franjoine

Duel Role of Gluteus Medius 2009 Prim Haynes & Franjoine

The Role of the Peripheral Nervous System = Motor Units Posture System Unit type: S Slow to fatigue Contraction speed slow Rich capillary action Movement System Motor unit types FR resist fatigue FF fatigue rapidly 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine What is…. Postural Control? Balance ? Functional Balance? 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine Postural Control Steady State Postural Control Maintain the COM within BOS Sway Strategies Dynamic Postural Control Anticipatory: Prepares for movement (feedforward) Reactive Righting & Equilibrium Reactions Proactive Modifies Response due to environment & Task 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine Postural Control Interaction of Multi-systems that influence the motor output Response ….. 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine …Balance Balance what we see and measure clinically How we measure Balance? Steady State Balance Anticipatory Balance Proactive Balance Reactive Balance 2009 Prim Haynes & Franjoine

Functional Balance is… Integration of the postural and movement system which allows us to freely move in space to complete our desired functional tasks with orientation of the body in space and fluid execution of the movement. Example Pick up object from floor Run & Jump Transition in and out of chair 2009 Prim Haynes & Franjoine

Prim Haynes & Franjoine Picture and Video 2009 Prim Haynes & Franjoine