06/10/2026
From an Occupational Therapy perspective, a child completing a small k**b alphabet puzzle while prone over a therapy ball and weight-bearing through the upper extremities is working on multiple skill areas simultaneously:
Postural Control & Core Stability
* Trunk extension
* Postural endurance
* Core strength
* Abdominal co-contraction
* Postural control against gravity
* Maintenance of midline orientation
* Dynamic postural stability
* Proximal stability for distal mobility
Shoulder Girdle Stability
* Scapular stability
* Shoulder joint stability
* Co-contraction around the shoulder girdle
* Weight-bearing through upper extremities
* Development of proximal shoulder strength
* Sustained shoulder activation
Upper Extremity Strength
* Upper body strength
* Arm strength
* Elbow stability
* Wrist stability
* Endurance of postural muscles
* Bilateral upper extremity support
Hand Development
* Open web space maintenance
* Intrinsic hand muscle activation
* Arch development of the hand
* Separation of the two sides of the hand
* Finger isolation
* Grasp refinement
* Thumb opposition
* Precision pinch
Fine Motor Skills
* Pincer grasp
* Three-jaw chuck grasp
* Manipulation of small objects
* In-hand manipulation (depending on how puzzle pieces are handled)
* Release accuracy
* Graded force control
Visual-Motor Integration
* Eye-hand coordination
* Visual-motor integration
* Spatial matching
* Visual discrimination of letters
* Motor planning for placement of pieces
* Accuracy of movement
Bilateral Coordination
* Stabilizing with one hand while manipulating with the other
* Integration of right and left sides of the body
* Bilateral upper extremity coordination
* Crossing midline (if puzzle placement requires it)
Motor Planning (Praxis)
* Planning movement sequences
* Body awareness during movement
* Grading force and movement
* Problem solving for puzzle completion
* Anticipatory postural adjustments
Sensory Processing
Proprioceptive Processing
* Joint compression through hands, wrists, elbows, and shoulders
* Increased body awareness
* Awareness of limb position
* Force grading
Vestibular Processing
* Head position changes
* Postural adjustments while balancing on the ball
* Vestibular-postural integration
* Equilibrium responses
Tactile Processing
* Tactile discrimination of puzzle pieces
* Awareness of hand contact with the floor
* Tactile feedback during manipulation
Visual Perceptual Skills
* Figure-ground perception
* Visual discrimination
* Form constancy
* Position in space
* Spatial relations
* Visual scanning
Neck & Head Control
* Cervical extension
* Head control against gravity
* Visual attention while maintaining head position
* Neck extensor endurance
Functional Foundations for School Skills
* Handwriting readiness
* Tabletop endurance
* Sustained attention
* Task persistence
* Following directions
* Academic readiness skills
Reflex Integration Considerations
This position can also challenge and support maturation/integration of:
* Symmetrical Tonic Neck Reflex (STNR)
* Tonic Labyrinthine Reflex (TLR)
* Associated postural reactions
* Protective extension responses
If the Child Maintains the “Ideal” Position Shown
You are specifically promoting:
* Scapular protraction and stability
* Shoulder co-contraction
* Weight-bearing through an open palm
* Wrist extension
* Neutral spinal alignment
* Active trunk extension
* Efficient proximal stability
* Mature postural control needed for handwriting, cutting, and other fine motor tasks.
These proximal stability components are often the primary therapeutic reason OTs choose prone-on-ball activities with a fine motor task.
