The document introduces the postural and movement systems, which work together to control functional activities. The postural system maintains body alignment and anticipates changes, while the movement system provides mobility and speed for motor functions. It also outlines muscle characteristics, proprioceptive feedback, methods of postural control, and essential considerations for treatment design.

1. POSTURE AND
MOVEMENT
SYSTEMS

2. INTRODUCTION
• Functional activities are
controlled by two different
but complementary systems
• Postural system
• Movement system

3. POSTURAL SYSTEM
• Maintain alignment of body in any position
• Anticipate changes to allow goal directed
movements and make adjustments before,
during and after movement
• Tries to Maintains COM with in BOS
• Protects the integrity of joints

4. MOVEMENT SYSTEM
• Provide range and speed to motor function
• Mobility
• To overcome the inertia
• Energize the initiation
• Decelerate the termination
• Transfers
• To translate the body segments in space
• Progression, stability and adaptation

5. Characteristics Postural system Movement system
Muscle configuration Bi/multipinnate Unipinnate, penniform
Muscle fiber length Short Long
Number of joints the
muscle crosses
Single Two or more
Muscle attachments Broad Narrow
Muscle placement Deep Superficial
Muscle fiber type STO FTO,FTG
Fatigue Slow Fast
Contraction speed Slow Fast
Capillary network Very rich Rich
Type of muscle
contraction
Slow, sustained,
short range,
Fast, rapid, quick, short
burst, large range
Proprioceptive
feedback
Requires
continuously
Requires

6. Examples of postural and movement
muscles
• Postural
• Movement

7. POSURAL CONTROL
• Steady state
• Anticipatory
• Adaptive
• Reactive
• Righting reactions
• Equilibrium reactions
• Protective reactions

8. Some important requirements for
designing the treatment
• Centre of gravity
• Line of gravity
• Base of support
• Alignment
• Symmetry
• Characteristics of normal movement
• Weight bearing and weight shifting
• Planes of movement
• Biomechanics
• Motor control / motor learning
• Anatomy and physiology of neuromuscular system