Proprioception and Spatial Orientation Baldeo, Biendima, Go, Olivar, Soriano
May 25, 2015
Proprioception and Spatial Orientation
Baldeo, Biendima, Go, Olivar, Soriano
Methodology
Condition I
In a single rapid try
Condition II
Condition III
Looking at ceiling while standing on
one foot
Results ISubject 1 Subject 2
Eyes Opened Missed Touched
Eyes Closed Missed Missed
Results IIISubject 1 Subject 2
Eyes Opened Able to maintain balanceWobbled a bit
Arms wobbledLegs swayed a bit
Eyes Closed Body shakingFeet wobbled uncontrollably
Stable
Results IISubject 1 Subject 2
Eyes Opened Body adjusts to the side of the foot on the ground
Body wobbled
Foot on ground wobbledBody leaned towards the
foot on the groundEyes Closed Wobbled left and right
Moves about rapidlyPerson can’t seem to find
center of gravity
Swayed to the leftBody wobbled uncontrolably
Proprioceptive Sensations
• Sensations relating to the physical state of the body
• Static position sense vs. Rate of movement sense
Cues Important in Spatial Orientation
• Visual Cues– Slight linear or rotational movement of the body,
instantaneously shifts the visual images of the retina, and this information is relayed to the equilibrium center
Cues Important in Spatial Orientation
• Vestibular cues– Proper orientation of our head, limbs, and entire
body is achieved by reflex signals originating from the vestibular apparatus.
Cues Important in Spatial Orientation
• Kinesthetic cues– Joint receptors of the neck– Pressure sensations from footpads (Baroreceptors)– Muscle spindles
Cues Important in Spatial Orientation
• Exteroreceptive information– Important when a person
is in motion– Air pressure against the
front of the body signals that a force is opposing the body in a direction different from that caused by the gravitational pull; as a result, the person leans forward to oppose this
Corrective motions for balance
The body moves to a position such that its center of gravity falls on the same longitudinal axis as that of its foundation